IDU 605 Commissioning Guide(V100R003_05)

OptiX RTN 600 Radio Transmission SystemV100R003

IDU 605 Commissioning Guide

Issue 05

Date 2010-05-25

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2010. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

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http://www.huawei.com

mailto:[email protected]

About This Document

PurposeThis manual provides the on-site commissioning methods of the OptiX RTN 600 (with the IDU605 installed). The commissioning items and procedure in the case of the NE commissioningand the HOP commissioning are described respectively.

Related VersionsThe following table lists the product versions related to this document.

Product Name Version

OptiX RTN 600 V100R003

OptiX iManager T2000 V200R007C03

Intended AudienceThis manual is intended for the installation and commissioning engineers for the OptiX RTN600 (with the IDU 605 installed). Before reading this manual, you must know the following:

l Basics of the digital microwave communications.

l Basics of the OptiX RTN 600 (with the IDU 605 installed). For details, refer to the OptiXRTN 600 Radio Transmission System IDU 605 Hardware Description and OptiX RTN 600Radio Transmission System ODU Hardware Description.

Conventions

Symbol ConventionsThe symbols that may be found in this document are defined as follows.

OptiX RTN 600 Radio Transmission SystemIDU 605 Commissioning Guide About This Document


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Symbol Description

Indicates a hazard with a high level of risk,which if not avoided, will result in death orserious injury.

Indicates a hazard with a medium or low levelof risk, which if not avoided, could result inminor or moderate injury.

Indicates a potentially hazardous situation,which if not avoided, could result inequipment damage, data loss, performancedegradation, or unexpected results.

Indicates a tip that may help you solve aproblem or save time.

Provides additional information to emphasizeor supplement important points of the maintext.

General Conventions

The general conventions that may be found in this document are defined as follows.

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are inboldface. For example, log in as user root.

Italic Book titles are in italics.

Courier New Examples of information displayed on the screen are inCourier New.

GUI Conventions

The GUI conventions that may be found in this document are defined as follows.

Convention Description

Boldface Buttons, menus, parameters, tabs, windows, and dialog titles are inboldface. For example, click OK.

> Multi-level menus are in boldface and separated by the ">" signs. Forexample, choose File > Create > Folder.

About This DocumentOptiX RTN 600 Radio Transmission System


iv Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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Mouse Operation

The mouse operations that may be found in this document are defined as follows.

Action Description

Click Select and release the primary mouse button without moving the pointer.

Double-click Press the primary mouse button twice continuously and quickly withoutmoving the pointer.

Drag Press and hold the primary mouse button and move the pointer to a certainposition.

Update HistoryUpdates between document issues are cumulative. Therefore, the latest document issue containsall updates made in previous issues.

Updates in Issue 05 (2010-05-25)

Fifth release.

The descriptions of the parameters used for configuring the Hybrid/AM attribute are optimized.

Updates in Issue 04(2009-06-15)

fourth release.

Commissioning flow are modified .


Third release.

Testing the AM Switching are modified .


Second release.

Known defects are modified as required.


Initial release.

OptiX RTN 600 Radio Transmission SystemIDU 605 Commissioning Guide About This Document


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Contents

About This Document...................................................................................................................iii

1 Safety Precautions......................................................................................................................1-11.1 General Safety Precautions.............................................................................................................................1-11.2 Electrical Safety..............................................................................................................................................1-31.3 Flammable Air Environment...........................................................................................................................1-51.4 Radiation.........................................................................................................................................................1-51.5 Working at Heights.........................................................................................................................................1-61.6 Mechanical Safety...........................................................................................................................................1-91.7 Other Precautions..........................................................................................................................................1-10

2 Commissioning Preparations...................................................................................................2-12.1 Commissioning Items......................................................................................................................................2-2

2.1.1 NE Commissioning Items......................................................................................................................2-22.1.2 HOP Commissioning Items....................................................................................................................2-2

2.2 Documents and Tools Preparation..................................................................................................................2-32.2.1 Documents Preparation..........................................................................................................................2-42.2.2 Tools Preparation...................................................................................................................................2-4

2.3 Commissioning Conditions Check..................................................................................................................2-42.3.1 NE Commissioning Conditions Check..................................................................................................2-52.3.2 HOP Commissioning Conditions Check................................................................................................2-5

3 NE Commissioning Guide.......................................................................................................3-13.1 Powering On the Equipment...........................................................................................................................3-23.2 Accessing the Web LCT.................................................................................................................................3-33.3 Configuring Data.............................................................................................................................................3-53.4 Checking Alarms.............................................................................................................................................3-73.5 Testing the Connections of E1 Cables............................................................................................................3-8

3.5.1 Testing the Connections of E1 Cables by Using a BER Tester.............................................................3-83.5.2 Testing the Connections of E1 Cables Through PRBS..........................................................................3-9

4 HOP Commissioning Guide....................................................................................................4-14.1 Aligning the Antennas.....................................................................................................................................4-2

4.1.1 Main Lobe and Side Lobe......................................................................................................................4-24.1.2 Aligning the Single-Polarized Antennas................................................................................................4-4

4.2 Checking the Status of a Radio Link...............................................................................................................4-7

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4.3 Testing the Orderwire Phone...........................................................................................................................4-84.4 Testing the E1 Service.....................................................................................................................................4-9

4.4.1 Testing the E1 Services by Using a BER Tester....................................................................................4-94.4.2 Testing the E1 Service Through PRBS................................................................................................4-10

4.5 Testing the Ethernet Service.........................................................................................................................4-114.5.1 Testing the Ethernet Service by Using One Laptop.............................................................................4-114.5.2 Testing the Ethernet Service by Using Two Laptops...........................................................................4-134.5.3 Testing the Ethernet Service by Using the ETH-OAM Function........................................................4-15

4.6 Switch Test of AM Modes............................................................................................................................4-164.6.1 Switch Test of AM Modes by Using a BER Tester.............................................................................4-174.6.2 Testing the AM Switching by Checking the Performance Events.......................................................4-18

4.7 Testing the IF 1+1 Switching........................................................................................................................4-194.8 Testing the 24-Hour BER..............................................................................................................................4-20

5 Network Management Supporting Tasks.............................................................................5-15.1 Setting Tributary Loopback............................................................................................................................5-35.2 Setting the Automatic Release Function.........................................................................................................5-45.3 Configuring the ATPC Function.....................................................................................................................5-55.4 Setting the Parameters of ODU Ports..............................................................................................................5-75.5 Configuring the Hybrid/AM Attribute..........................................................................................................5-105.6 Configuring External Ethernet Ports.............................................................................................................5-125.7 Querying the Working State of AM..............................................................................................................5-165.8 Creating MDs................................................................................................................................................5-175.9 Creating MAs................................................................................................................................................5-195.10 Creating MPs...............................................................................................................................................5-20

A Glossary.....................................................................................................................................A-1A.1 0-9..................................................................................................................................................................A-2A.2 A-E................................................................................................................................................................A-2A.3 F-J..................................................................................................................................................................A-7A.4 K-O..............................................................................................................................................................A-10A.5 P-T...............................................................................................................................................................A-12A.6 U-Z..............................................................................................................................................................A-16

ContentsOptiX RTN 600 Radio Transmission System


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Figures

Figure 1-1 Wearing an ESD wrist strap............................................................................................................... 1-5Figure 1-2 Weight lifting......................................................................................................................................1-7Figure 1-3 Schematic diagram of slanting a ladder..............................................................................................1-8Figure 1-4 Schematic diagram of the ladder one meter higher than the eave......................................................1-8Figure 3-1 Connecting to the BER tester............................................................................................................. 3-9Figure 4-1 Main lobe and side lobe......................................................................................................................4-2Figure 4-2 Horizontal section of the antenna.......................................................................................................4-3Figure 4-3 Three tracking paths........................................................................................................................... 4-3Figure 4-4 Aligning the antenna with the first side lobe......................................................................................4-4Figure 4-5 Testing the RSSI voltage by using a multimeter................................................................................4-6Figure 4-6 Configuration for testing the Ethernet service..................................................................................4-11Figure 4-7 Cable connection for the IDU (NE1)................................................................................................4-12Figure 4-8 Cable connection for the IDU (NE2)................................................................................................4-12Figure 4-9 Configuration for testing the Ethernet service..................................................................................4-14Figure 4-10 Cable connection for the IDU (NE1)..............................................................................................4-14Figure 4-11 Cable connection for the IDU (NE2)..............................................................................................4-14Figure 4-12 Serial connection of the E1 service................................................................................................4-21Figure 5-1 Inloop..................................................................................................................................................5-3Figure 5-2 Outloop...............................................................................................................................................5-3

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Tables

Table 2-1 NE commissioning items..................................................................................................................... 2-2Table 2-2 Hop commissioning items....................................................................................................................2-3Table 2-3 Tool list................................................................................................................................................ 2-4Table 3-1 Flow for configuring PDH services in the guide mode........................................................................3-5Table 3-2 Flow for configuring E1 services.........................................................................................................3-5Table 3-3 Flow for configuring Ethernet services................................................................................................3-7Table 5-1 Methods used by ports to process data frames...................................................................................5-16

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1 Safety Precautions

1.1 General Safety PrecautionsThe general safety precautions include parts of the safety precautions. Read and follow thesesafety precautions before installing, operating, and maintaining the equipment. This topic alsoprovides guidelines on how to select the appropriate measuring instruments and test devices.

Specific Safety PrecautionsBefore installing, operating, and maintaining the equipment, read through the instructions andprecautions carefully to minimize the possibility of accidents. The Danger, Caution, Warning,and Note items in this document do not cover all the safety precautions that must be followed.They are only parts of the safety precautions as a whole.

Symbols

DANGERIndicates a hazard with a high level of risk that, if not avoided, could result in death or seriousinjury.

WARNINGIndicates a hazard with a medium or low level of risk that, if not avoided, could result in minoror moderate injury.

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CAUTIONIndicates a potentially hazardous situation that, if not avoided, could cause equipment damage,data loss, performance degradation, or unexpected results.

NOTE

Provides additional information to emphasize or supplement important points of the main text.

Local Rules and Regulations

When operating the equipment, you must obey the local rules and regulations. The safetyprecautions provided in this document are supplementary and should be in compliance with thelocal safety regulations.

Basic Requirements for Installation

The installation and maintenance personnel of Huawei equipment must receive strict trainingand be familiar with the proper operation methods and safety precautions before any operation.

l Only the qualified and skilled personnel are allowed to install, operate, and maintain theequipment.

l Only the certified professionals are allowed to remove the safety facilities, and totroubleshoot and maintain the equipment.

l Any replacement or change of the equipment or parts of the equipment (including thesoftware) must be performed by the certified or authorized personnel of Huawei.

l Any fault or error that may cause a safety problem must be reported immediately to theperson in charge.

Grounding Requirements

The grounding requirements are applicable to the equipment that needs to be grounded.

l When installing the equipment, always connect the grounding facilities first. Whenremoving the equipment, always disconnect the grounding facilities last.

l Do not damage the grounding conductor.

l Do not operate the equipment in the absence of a suitably installed grounding conductor.

l The equipment should be connected to the protection ground permanently. Before operatingthe equipment, check the electrical connections of the equipment, and ensure that theequipment is properly grounded.

Human Safetyl Do not operate the equipment and cables in the case of lightning.

l To avoid electric shocks, do not connect the safety extra-low voltage (SELV) circuits tothe telephone-network voltage (TNV) circuits.

l To prevent laser radiation from injuring your eyes, do not look at the optical port directly.

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l Before operating the equipment, put on the electrostatic discharge (ESD) work uniforms,wear ESD gloves or an ESD wrist strap, and take off metallic articles, such as watch,bracelet, and ring, to prevent electric stock or injury of the human body.

l In the case of fire, keep away from the building or the area where the equipment is locatedand press the fire alarm system or dial the phone number for a fire call. In this case, do notenter the building which is on fire.

Equipment Safetyl Before operation, install the equipment firmly on the ground or other rigid objects, such as

a wall or a rack.l When the system is operating, ensure that the ventilation hole is not blocked.

l When installing the front panel, use a tool to tighten the screws firmly.

l After installing the equipment, clean up the packing materials.

1.2 Electrical Safety

High Voltage

DANGERl The high-voltage power supply provides the power for the equipment. Direct or indirect

contact of high voltage and mains supply through damp objects may result in fatal danger.l Non-standard and improper high-voltage operations may result in certain accidents such as

fire or electric shock.

l The personnel who perform high-voltage operations must be certified for high-voltage andAC operations.

l The AC cables must be bridged and routed according to the local rules and regulations.

l When operating AC power supply facilities, obey the local rules and regulations.

l When performing high-voltage and AC operations, use special tools rather than generaltools.

l When performing operations in a damp environment, ensure that the equipment is keptaway from water. Switch off the power supply immediately if you find any water in therack or if the rack is damp.

Thunderstorm

DANGERDo not perform operations on high voltage, AC power, iron tower, or backstay in stormy weatherconditions.



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Power Cable

CAUTIONDo not install or remove the power cable with the power on. Transient contact between the coreof the power cable and the conductor may generate electric arc or spark, which may cause fireor injury to the eye.

l Before installing or removing the power cable, switch off the power supply.

l Before connecting the power cable, ensure that the power cable and label conform to therequirements for the installation.

Fuse

CAUTIONIf the fuse on the equipment blows, replace the fuse with a fuse of the same type and specificationsto ensure safe operation of the equipment.

Electrostatic Discharge

CAUTIONThe static electricity generated by the human body may damage the electrostatic sensitivecomponents on the board, such as the large-scale integrated circuit (LSI).

l The human body generates a static electromagnetic field in the following situations: movingof the human body, friction of the clothes, friction between shoes and the ground, andholding ordinary plastic in hand. The static electromagnetic field will remain within thehuman body for a long time.

l Before operating the equipment, parts, circuit boards, or ASICs, wear an ESD wrist strapthat is properly grounded. The ESD wrist strap can prevent the electrostatic-sensitivecomponents from being damaged by the static electricity in the human body.

Figure 1-1 shows the method of wearing an ESD wrist strap.




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Figure 1-1 Wearing an ESD wrist strap

1.3 Flammable Air Environment

DANGERDo not place or operate the equipment in an environment where flammable gas, explosive gas,or smog exists.

Operations on any electronic device in an environment where explosive gas exists may causeextreme risks.

1.4 Radiation

Electromagnetic Exposure

CAUTIONHigh-intensity RF signals are harmful to the human body.

If multiple transmit antennas are installed on the iron tower or backstay, you must request therelevant personnel to shut down the transmit antenna before installing or maintaining the antennalocally.

During the operation, the radio equipment may generate electromagnetic radiation (namely,radiation harm). Before installing and operating the radio equipment, read the guidelines toensure safe operations. When installing the radio equipment, obey the local rules and regulations.



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Forbidden Area

The following requirements should be met:

l The site of the antenna should be far away from the area where the electromagnetic radiationis beyond the specified range and the public cannot reach.

l Before entering the area where the electromagnetic radiation is beyond the specified range,the operator should learn about the area and shut down the electromagnetic radiator. Thearea where the electromagnetic radiation is beyond the specified range, if any, should bewithin 10 meters away from the antenna.

l A physical barrier and an eye-catching warning flag should be available in each forbiddenarea.

1.5 Working at Heights

CAUTIONWhen working at heights, be cautious to prevent objects from falling down.

The requirements for working at heights are as follows:

l The personnel who work at heights must be trained.

l The operating machines and tools should be carried and handled safely to prevent themfrom falling down.

l Safety measures, such as wearing a helmet and a safety belt, should be taken.

l Wear cold-proof clothes when working at heights in cold areas.

l Check all lifting appliances thoroughly before starting the work, and ensure that they areintact.

Weight Lifting

CAUTIONDo not enter the areas under the jib arm and the goods in suspension when lifting weight.

l Ensure that the operators have completed the related training and have been certified.

l Check the weight lifting tools and ensure that they are intact.

l Lift the weight only when the weight lifting tools are firmly fixed onto the weight-bearingobject or the wall.

l Use a concise command to prevent any incorrect operation.

l Ensure that the angle between the two cables is less than or equal to 90 degrees during thelifting, as shown in Figure 1-2.




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Figure 1-2 Weight lifting

Using the LadderChecking the Ladder

l Before using the ladder, check and ensure that the ladder is intact.

l Before using the ladder, check the maximum weight that the ladder can support. Overweighton the ladder is strictly prohibited.

Placing the Ladder

A slant angle of 75 degrees is recommended. The slant can be measured with the angle squareor with arms, as shown in Figure 1-3. When a ladder is used, the wide part of the ladder shouldstand on the ground. Otherwise, take certain protective measures on the base part of the ladderto prevent against sliding. Place the ladder on a rigid ground.



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Figure 1-3 Schematic diagram of slanting a ladder

When climbing the ladder, note the following points:

l Ensure that the gravity center of your body does not deviate from the ladder edge.

l To lessen the danger and ensure the safety, keep your balance on the ladder before anyoperation.

l Do not climb higher than the forth highest step of the ladder.

If you intend to climb to the top, the length of the ladder should be at least one meter higher thanthe eave, as shown in Figure 1-4.

Figure 1-4 Schematic diagram of the ladder one meter higher than the eave




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1.6 Mechanical Safety

Drilling Holes

CAUTIONDo not drill holes on the cabinet without prior permission. Improper drilling may cause damageto the internal cables and the EMC function of the cabinet. Metallic scraps produced by thedrilling may fall into the cabinet and cause short circuits of the circuit boards.

l Before drilling a hole on the cabinet, remove the cables inside the cabinet.

l During the drilling, ensure that your eyes are protected properly. The flying metallic scrapsmay cause injury to your eyes.

l Before drilling a hole on the cabinet, wear the protection gloves.

l Take measures to prevent the metallic scraps from falling into the cabinet. After the drilling,clean up the metallic scraps.

Sharp Objects

CAUTIONWhen handling the equipment by hands, wear the protection gloves to avoid injury by sharpobjects.

Fansl When replacing components, ensure that no objects such as components, screws, and tools

fall into a fan that is running, to prevent damage to the fan or equipment.l When replacing the equipment close to a fan, do not put a finger or a board into a fan that

is running before the fan is switched off and stops running, to prevent injury to your handsor damage to the equipment.

Handling Heavy ObjectsWhen handling heavy objects, wear the protection gloves to prevent injury to your hands.



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CAUTIONl When handling heavy objects, ensure that the weight bearing measures are taken to prevent

you from being pressed or sprained.l When taking the chassis out from the cabinet, draw attention to the equipment that is unstable

or heavy on the cabinet, to prevent any pressing or smashing injury.

l When handling a chassis, generally, two persons rather than one person are required tohandle a heavy chassis. When handling a chassis, keep your back straight and move gentlyto prevent you from being sprained.

l When moving or lifting a chassis, hold the handle or bottom of the chassis rather than thehandle of a module (such as a power supply module, a fan module, or a board) that hasbeen installed inside the chassis.

1.7 Other Precautions

Removing and Inserting Boards

CAUTIONWhen inserting a board, wear an ESD wrist strap or ESD gloves, and handle the board gently toavoid bending pins on the backplane.

l Insert the board along the guiding slot.

l The contact of board circuits is not allowed to avoid short circuits or scratches.

l Do not touch the circuit, components, connectors, or routing channels of the board toprevent damage caused by electrostatic discharge of the human body to the electrostatic-sensitive components.

Binding Signal Cables

CAUTIONBind the signal cables separately from the high-current or high-voltage cables.

Routing Cables

In the case of extremely low temperature, heavy shock or vibration may damage the externalplastic coatings of the cables. The following requirements should be observed to ensure safeimplementation:

l All the cables can be routed only when the ambient temperature is higher than zero degrees.




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l If the cables are stored in a place where the ambient temperature is lower than zero degrees,you must transfer them to a place where the ambient temperature is room temperature atleast 24 hours before the operation.

l Handle the cables gently, especially in a low-temperature environment. Do not performany improper operations, for example, pushing the cables down directly from a truck.

High Temperature

WARNING

If the ambient temperature exceeds 55°C, the temperature of the front panel surface marked the

flag may exceed 70°C. When touching the front panel of the board in such an environment,you must wear the protection gloves.

IF Cables

WARNINGBefore installing or removing an IF cable, you must turn off the power switch of the IF board.



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2 Commissioning Preparations

About This Chapter

Before commissioning the equipment, you must make the related preparations.

The commissioning preparations to be made are as follows:

2.1 Commissioning ItemsThe commissioning items of the OptiX RTN 600 that adopts the IDU 605 are classified into twocategories: NE commissioning items and HOP commissioning items.

2.2 Documents and Tools PreparationTo commission the equipment smoothly, the related documents and tools must be available.

2.3 Commissioning Conditions CheckBefore performing the NE commissioning and HOP commissioning, check whether theequipment meets the commissioning requirements.

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2.1 Commissioning ItemsThe commissioning items of the OptiX RTN 600 that adopts the IDU 605 are classified into twocategories: NE commissioning items and HOP commissioning items.

2.1.1 NE Commissioning ItemsNE commissioning involves the commissioning of a single NE when the radio link is notestablished. It is recommended that you test the commissioning items listed in the followingtable, depending on the actual configuration of the equipment.

2.1.2 HOP Commissioning ItemsHOP commissioning involves the commissioning of the radio link upon its establishment afterthe NE commissioning for the two radio NEs at both ends of the link is complete. It isrecommended that you test the commissioning items listed in the following table, depending onthe actual configuration of the equipment.

2.1.1 NE Commissioning ItemsNE commissioning involves the commissioning of a single NE when the radio link is notestablished. It is recommended that you test the commissioning items listed in the followingtable, depending on the actual configuration of the equipment.

Table 2-1 NE commissioning items

Procedure Remarks

Powering On the Equipment Required

Accessing the Web LCT Required

Configuring data Required

Checking Alarms Required

Testing theconnections of E1cables

Testing theConnections of E1Cables by Using aBER Tester

Required when the E1 service is available anda BER tester is available on site

Testing theConnections of E1Cables ThroughPRBS

Required when the E1 service is available buta BER tester is not available on site

2.1.2 HOP Commissioning ItemsHOP commissioning involves the commissioning of the radio link upon its establishment afterthe NE commissioning for the two radio NEs at both ends of the link is complete. It isrecommended that you test the commissioning items listed in the following table, depending onthe actual configuration of the equipment.

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Table 2-2 Hop commissioning items

Procedure Remarks

Aligning theAntenna

Main Lobe and SideLobe

Required

Aligning the Single-Polarized Antenna

Required

Checking the Status of a Radio Link Required

Testing the Orderwire Phone Required when there is an orderwire phonebetween stations

Testing the E1Service

Testing the E1Services by Using aBER Tester

Required when there is a BER tester on site

Testing the E1Service ThroughPRBS

Required when there is not a BER tester onsite

Testing theEthernet Service

Testing theEthernet Service byUsing One Laptop

Required when the Ethernet service of theIDU 605 1F/2F is tested by using thecomputer

Testing theEthernet Service byUsing Two Laptops

Required when the Ethernet service of theIDU 605 1F/2F is tested by using thecomputer

Testing theEthernet Service byUsing the ETH-OAM Function

Required when the Ethernet service of theIDU 605 1F/2F is tested by using theETH_OAM function

Switch Test of AMModes

Switch Test of AMModes by Using aBER Tester

Required when the AM function is enabledon the IDU 605 1F/2F

Testing the AMSwitching byChecking thePerformanceEvents

Required when the AM function is enabledon the IDU 605 1F/2F

Testing the IF 1+1 Switching Required when the IDU 605 2B/2F isconfigured with 1+1 HSB/FD/SD protection

Testing the 24-Hour BER Required

2.2 Documents and Tools PreparationTo commission the equipment smoothly, the related documents and tools must be available.



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2.2.1 Documents PreparationDocuments that are required include the engineering design documents and commissioningguide documents.

2.2.2 Tools PreparationTools that are required include the common tools, special tools, and meters.

2.2.1 Documents PreparationDocuments that are required include the engineering design documents and commissioningguide documents.

Engineering design documents include:

l XX Network Planning Document

l XX Engineering Design Document

Commissioning guidelines, such as the OptiX RTN 600 Radio Transmission System IDU 605Commissioning Guide.

2.2.2 Tools PreparationTools that are required include the common tools, special tools, and meters.

Table 2-3 Tool list

Type Description

Common tool Adjustable wrench

Special tool Anti-static glove, anti-static wrist strap,telescope, and walkie-talkie

Meter Multimeter, BER tester, laptop computer(with the Web LCT installed)

NOTE

For the hardware and software that are required for installing the Web LCT and the installation method,refer to the OptiX iManager T2000 Web LCT User Manual.

2.3 Commissioning Conditions CheckBefore performing the NE commissioning and HOP commissioning, check whether theequipment meets the commissioning requirements.

2.3.1 NE Commissioning Conditions CheckThe items to be checked include the status of the equipment and laptop computer that is usedfor commissioning.

2.3.2 HOP Commissioning Conditions CheckThe items to be checked include the NE commissioning status and weather conditions.

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2.3.1 NE Commissioning Conditions CheckThe items to be checked include the status of the equipment and laptop computer that is usedfor commissioning.

The NE commissioning conditions are listed as follows:

l The hardware installation must be complete, and it should pass the installation check.

l The power for the equipment must be available.

l The service signal cables that are connected to other equipment must be routed as required.

l The laptop compute must be installed with the Web LCT, and the application must operatenormally.

2.3.2 HOP Commissioning Conditions CheckThe items to be checked include the NE commissioning status and weather conditions.

The HOP commissioning conditions are listed as follows:

l The NE commissioning of the radio equipment at both ends of the radio link must becomplete.

l The weather should be suitable for outdoor work. There should be no rain, snow, or fogbetween stations.

l The on-site conditions must meet the requirements for performing operations at highaltitudes and the personnel in charge of commissioning the antennas must be trained towork at high altitudes.



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3 NE Commissioning Guide

About This Chapter

This chapter describes how to commission all the NE items.

The commissioning procedure is as follows:

3.1 Powering On the EquipmentBy checking the process of powering on equipment, you can check whether the hardware systemof the equipment and the power system are normal.

3.2 Accessing the Web LCTAccessing the Web LCT normally is a prerequisite for future data configuration and for thecommissioning of other items.

3.3 Configuring DataBy configuring the data that is used by the equipment in the commissioning process, you canensure that the equipment works normally. This can also help you to make preparations for futurecommissioning items.

3.4 Checking AlarmsBy checking the alarms generated by the equipment, you can check whether the equipment isworking properly.

3.5 Testing the Connections of E1 CablesBy testing the connections of the E1 cables, you can check whether the connections of the E1cables between the equipment and the DDF are correct, and whether the E1 cables are normal.

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3.1 Powering On the EquipmentBy checking the process of powering on equipment, you can check whether the hardware systemof the equipment and the power system are normal.

Prerequisitel The hardware installation must be complete, and it should pass the installation check.

l The power supply must be available, and the fuse capacity of the power supply must meetthe requirements.In the case of the IDU 605, it is recommended that you use a 4 A fuse for the - 48 V/- 60V power supply system.

l The power switch on the power box (or power cabinet) must be turned off.

Tools, Equipment, and MaterialsMultimeter

Precautions

CAUTIONOn the front panel of the IDU 605 2B, the switches marked "ODU-S" and "ODU-M" are equippedwith locking devices. Hence, you must pull out the switch gently before you turn it. If the switchpoints to "0", you can infer that the switch is off. If the switch points to "I", you can infer that itis on.

Procedure

Step 1 Set the POWER switch on the front panel of the IDU 605 to "0".

Step 2 If the IDU 605 2B/2F is used, you should set the ODU-S and ODU-M switches on the frontpanel of the IDU to "0".

Step 3 Turn on the power switch on the power box (or power cabinet).

Step 4 Connect a multimeter to the power supply (for example, the output terminal of the cabinet powerbox) to test the voltage and polarity of the input power.l When the nominal voltage of the input power is -48 V, the tested voltage should be between

-38.4 V and -57.6 V.l When the nominal voltage of the input power is -60 V, the tested voltage should be between

-48 V and -72 V.

3 NE Commissioning GuideOptiX RTN 600 Radio Transmission System



Issue 05 (2010-05-25)

WARNINGWhen the test value of the voltage is not within the range, first rectify the fault of the powerequipment. The abnormal voltage can cause damage to the equipment, even personal injury.

Step 5 Set the POWER switch on the front panel of the IDU 605 to "I".

Step 6 Observe the indicators on the front panel of the IDU 605.Front panel indicators should comply with the following statuses and sequences.

1. The PWR indicator on the front panel of the IDU 605 should be green.2. The IDU indicator on the front panel of the IDU 605 should be green, flash green, and off.

The process lasts about two minutes. Then, the IDU indicator should be constantly on. Ifthe green indicator is constantly on, you can infer that no alarm is generated. If the yellowindicator is constantly on, you can infer that a minor alarm or a warning arises. If the redindicator is constantly on, you can infer that a major alarm or a critical alarm arises.

NOTE

For details about the indicators on the front panel, refer to the OptiX RTN 600 Radio Transmission SystemIDU 605 Hardware Description.

Step 7 If the IDU 605 2B/2F is used, you should set the ODU-S and ODU-M switches on the frontpanel of the IDU to "I".

----End

3.2 Accessing the Web LCTAccessing the Web LCT normally is a prerequisite for future data configuration and for thecommissioning of other items.

PrerequisiteThe equipment must be powered on.

Tools, Equipment, and MaterialsLaptop computer installed with the Web LCT

Procedure

Step 1 Start the laptop computer, and log in to the operating system.

Step 2 Set the IP address information of this computer.The IP address should comply with the following conditions:l IP address: The IP address should be in the same network segment (129.9.0.0 by default) as

the IP address of the NE. The IP address of the computer and the IP address of the NE cannotbe the same.

l Subnet mask: The subnet mask of the computer is the same as the subnet mask of the NE(the default subnet mask is 255.255.0.0).



3-3

l Default gateway: null

Step 3 Use an Ethernet cable to connect the Ethernet port of the laptop to the port marked "ETH" onthe front panel of the IDU 605.The ETH interface supports the MDI/MDI-X autosensing. Hence, you can use the straight-through cable or crossover cable to connect to it.In this case, the green indicators of the ETH interface and network interface of the laptopcomputer are lit on. Also, if you set the prompt for the local area connection in the operatingsystem of the laptop computer, a prompt is displayed indicating that the network is connected.If the operating system prompts an IP address conflict, set the IP address again.

Step 4 Optional: Set the Internet Explorer (IE) as the default browser.

Step 5 Optional: Set the priority level of the IE to middle or below.

Step 6 Optional: Disable the function that blocks the popup window.

NOTEIf there are other installed plug-ins to block the popup window, disable the function of all the plug-ins.

Step 7 Optional: Set the options of the IE.1. Start the IE.2. Choose Tools > Internet Options from the toolbar.3. In the Common tab, click Settings in the Internet Temporaries box.4. In Check for newer versions of stored pages, click Every visit to the page, and then

click OK.5. Click OK.

Step 8 On desktop, double-click the Start Web LCT icon.The system displays the USER LOGIN window of the Web LCT.

Step 9 Enter User Name and Password, and then click Login.The user name of the Web LCT is admin by default, and the corresponding password is T2000by default.If the entered user name and the password are both correct, the NE List page is displayed in theIE.




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----End

3.3 Configuring DataBy configuring the data that is used by the equipment in the commissioning process, you canensure that the equipment works normally. This can also help you to make preparations for futurecommissioning items.

This section lists the procedures of NE data configuration, For details on the configurations,refer to the OptiX RTN 600 Radio Transmission System IDU 605 Configuration Guide.

configuring IDU 605 1A/2A/2B

Table 3-1 Flow for configuring PDH services in the guide mode

Procedure

Description Remarks

1 Creating an NE Required

2 Logging in to an NE Required

3 Using the quick configuration guide Required

configuring IDU 605 1F/2F

Table 3-2 Flow for configuring E1 services

Step Operation Remarks

1 Managing NEs Creating an NE Required.

Logging in to an NE Required.

Modifying the NE ID Required.

Modifying the IP address of an NE Optional.

Synchronizing the NE time Required.



3-5


2 Configuringradio links

Modifying the parameters of the IF1+1 protection

Required when you needto modify the 1+1protection scheme and thecorrespondingparameters.

Configuring the IF/ODUinformation of a radio link

Required.

Setting the Hybrid/AM attribute Required when youconfigure the Hybridmicrowave.For details about theHybrid microwave, seethe OptiX RTN 600 RadioTransmission SystemFeature Description.

Setting the ATPC attributes Optional.For details about theATPC, see the OptiX RTN600 Radio TransmissionSystem FeatureDescription.

3 Configuring E1services

Configuring E1 services Required.

4 Configuring theorderwire

Configuring the orderwire Required.

5 Setting theparameters ofvariousinterfaces

Setting the parameters of PDHinterfaces

Required when youmodify the impedance ofthe E1 interface.

Setting the parameters of IFinterfaces

Optional when you adjustthe ATPC threshold.

Setting the parameters of ODUinterfaces

Optional.

6 Customizing thealarmmanagementscheme

Customizing the alarmmanagement scheme

Optional.




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Table 3-3 Flow for configuring Ethernet services


1 ConfiguringEthernetServices

Configuring theexternal ports ofEthernet boards

Required when you configure the Ethernetport that accesses the user services.

Creating EthernetLAN services

Required when you configure the EthernetLAN services.

Modifying themounted port of abridge

Required when you need to set Hub/SpokeAttribute to Spoke, thus isolating thecommunication between different ports.

Create the VLANfiltering table

Required when you need to create the IEEE802.1q bridge.

Configuring theLayer 2 switchingfeature

Optional.

Configuring theQoS

Optional.

3.4 Checking AlarmsBy checking the alarms generated by the equipment, you can check whether the equipment isworking properly.

Prerequisitel The equipment must be connected to the Web LCT.

l Data configuration must be complete.

Tools, Equipment, and Materials

Web LCT

Procedure

Step 1 Select an NE from the Object Tree in the NE Explorer, and then click in the toolbar.

Step 2 Select Auto Refresh.

Step 3 Check the displayed alarm information.Check whether there are equipment alarms, particularly the following types of alarms:l POWER_ALM

l HARD_BAD

l BD_STATUS



3-7

l NESF_LOST

l TEMP_ALARM

l IF_CABLE_OPEN

l POWER_FAIL

For details on the previous alarms and about how to handle them, refer to the OptiX RTN 600Radio Transmission System IDU 605 Maintenance Guide.

----End

3.5 Testing the Connections of E1 CablesBy testing the connections of the E1 cables, you can check whether the connections of the E1cables between the equipment and the DDF are correct, and whether the E1 cables are normal.

3.5.1 Testing the Connections of E1 Cables by Using a BER TesterBy using a BER tester, you can check whether the connections of the E1 cables are correct.

3.5.2 Testing the Connections of E1 Cables Through PRBSIn the absence of a BER tester, you can conduct a PRBS test to check the connections of E1cables through the embedded test system of the IDU 605 tributary unit.

3.5.1 Testing the Connections of E1 Cables by Using a BER TesterBy using a BER tester, you can check whether the connections of the E1 cables are correct.

Prerequisitel The NE equipment must be configured with an E1 interface board, and the E1 port must

be connected to the opposite equipment through the DDF.

l The service data must be configured.

Tools, Equipment, and Materialsl Web LCT

l BER tester

PrecautionsNOTE

The NE equipment supports the automatic release of software loopback function, the automatic releasetime is five minutes by default.

Procedure

Step 1 At the DDF, connect the BER tester to the first E1 port of the IDU.

The BER tester displays the AIS alarm.




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Figure 3-1 Connecting to the BER tester

RX TXDDF

1234....

RX TX

BER tester

Step 2 Set the corresponding E1 port to outloop through the Web LCT.

1. Select the PDH interface board in the Object Tree.

2. From the Function Tree, choose Configuration > PDH Interface.

3. Select By Function and select Tributary Loopback from the drop-down list.

4. Set Tributary Loopback of the E1 port to Outloop.

5. Click Apply.

6. Click OK.

Step 3 Observe the BER tester.The AIS alarm should be cleared.

Step 4 Release the outloop over the E1 port by using the Web LCT.

1. Select the PDH interface board in the Object Tree.

2. From the Function Tree, choose Configuration > PDH Interface.

3. Select By Function and select Tributary Loopback from the drop-down list.

4. Set Tributary Loopback of the E1 port to Non-Loopback.

5. Click Apply.

6. Click OK.

Step 5 Observe the BER tester.The BER tester should report the AIS alarm.

Step 6 Repeat Step 1 to Step 5 to test other E1 ports.

----End

3.5.2 Testing the Connections of E1 Cables Through PRBSIn the absence of a BER tester, you can conduct a PRBS test to check the connections of E1cables through the embedded test system of the IDU 605 tributary unit.



3-9

Prerequisitel The E1 port of the IDU 605 must travel through the DDF before being connected to another

device.

l Data configuration must be complete.

l The NE must be in normal communication with the Web LCT.


Web LCT

Precautions

CAUTIONl When a PRBS test is performed, the services carried on the tested path are interrupted.

l The PRBS test can be performed only in a unidirectional manner and on one path at a time.

Procedure

Step 1 At the DDF, use an E1 cable to loop back the services over the first E1 port towards the tributaryboard.

Step 2 On the Web LCT, select the E1 interface board in the Object Tree.

Step 3 In the function tree, choose Configuration > PRBS Test.

Step 4 Select the first E1 port, and then set the PRBS-related parameters.

l Direction: Tributary

l Duration: 5

l Measured in Time: s

Step 5 Click Start to Test.The system displays a prompt dialog box.

Step 6 Click OK.

Step 7 When the Progress column is 100%, click Query to check the test result.The Total PRBS column should be 0, and the curve diagram should be green.

Step 8 Release the loopback set in Step 1.

Step 9 Repeat Step 2 to Step 7 and check the test result.The curve diagram should be yellow.

Step 10 Repeat Step 1 to Step 9 to test all other E1 ports.

----End




Issue 05 (2010-05-25)

4 HOP Commissioning Guide

About This Chapter

This chapter describes how to commission all the HOP items.

The commissioning procedure is as follows:

4.1 Aligning the AntennasAligning the antennas is the most important activity in the HOP commissioning, and its resulthas a direct effect on the performance of the radio link.

4.2 Checking the Status of a Radio LinkYou can determine whether a radio link can normally transmit the ECC by checking the statusof the radio link.

4.3 Testing the Orderwire PhoneIf the station is installed with an orderwire phone, you can check whether the orderwire phonefunctions normally by testing the orderwire phone.

4.4 Testing the E1 ServiceBy testing the E1 service, you can check whether the E1 service is available between stations.

4.5 Testing the Ethernet ServiceBy testing the Ethernet service, you can check whether the Ethernet service is available betweenstations.

4.6 Switch Test of AM ModesIf a Hybrid microwave service is configured between two microwave stations, you can performerror-free switch of the AM modes to check whether the Hybrid service is available.

4.7 Testing the IF 1+1 SwitchingIf the IDU 605 2B/2F is used, you can check whether the switching is normal by testing the IF1+1 switching.

4.8 Testing the 24-Hour BERBy testing the 24-hour BER, you can check whether the equipment can transmit services stablyfor a long time.

OptiX RTN 600 Radio Transmission SystemIDU 605 Commissioning Guide 4 HOP Commissioning Guide


4-1

4.1 Aligning the AntennasAligning the antennas is the most important activity in the HOP commissioning, and its resulthas a direct effect on the performance of the radio link.

4.1.1 Main Lobe and Side LobeBefore you align the antenna, you should learn the related knowledge of the main lobe and sidelobe.

4.1.2 Aligning the Single-Polarized AntennasWhen you align the single-polarized antennas, you need to align the main lobes of the antennaby adjusting the azimuth and elevation of the antennas at both ends.

4.1.1 Main Lobe and Side LobeBefore you align the antenna, you should learn the related knowledge of the main lobe and sidelobe.

Definitions of the Main Lobe and Side LobeThe electric field strength of the radiated power of the antenna varies in space. The differencesof the power distribution can be shown in an azimuth diagram. Generally, there are the horizontalazimuth diagram for the horizontal section and the vertical azimuth diagram for the verticalsection. Figure 4-1 is a vertical azimuth diagram. There are many lobes in this figure. The lobewith the strongest radiated power is the main lobe. The other lobes are side lobes wherein thefirst side lobe can affect the antenna alignment.

Figure 4-1 Main lobe and side lobe

Main lobe

First side lobeSecond side lobe

Locating the Main LobeThe antenna alignment involves making the main lobe of the local antenna aligned with the mainlobe of the opposite antenna. The purpose is to make the received signal strength of the oppositeantenna reach the maximum value.

The main lobe width of the microwave antenna is narrow, that is, between 0.6° and 3.7° generally.For instance, in the case of a 1.2 m antenna at the working frequency of 23 GHz, the azimuth isonly 0.9° when the signal level drops from the signal peak to zero. Once a signal is detected,very small alignment adjustments are required to locate the main lobe.

Antenna movement across the main lobe will result in a rapid rise and fall of signal level. Whetherthe main lobe is aligned properly can be verified by comparing the received signal peaks.Typically, the main lobe signal peak is 20-25 dB higher than the first side lobe signal peak.

4 HOP Commissioning GuideOptiX RTN 600 Radio Transmission System



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Figure 4-2 shows the head-on view of a free-space model for radio propagation. The side lobestake the main lobe as the center and are distributed in the radiate form.

Figure 4-2 Horizontal section of the antenna

0o

a Horizontal section ofthe antenna

90o

180o

0o

90o

180o

Center of the main lobe

Outer edge of the main lobe, 3-10 dB lower than the main lobe

Trough between the main lobeand the first side lobe, 30 dBlower than the main lobeFirst side lobe, 20-25 dBlower than the main lobe

Trough between the first side lobeand the second side lobe, 30 dB ormore lower than the main lobe

Second side lobe, wheresignals are very weakb head-on view

Tracking PathSide lobe signal readings can be mistaken for main lobe readings when signals are tracked atdifferent elevations (or azimuths). Figure 4-3 shows a horizontal radio propagation model ofthe antenna, and signal levels at three different elevation positions ("1-7" represent the measuredsignal level values of the received signal strength indicator (RSSI) port of the ODU.)

Figure 4-3 Three tracking paths

Signal levels for each path

31

2

B

7

4 5

6

A

B'

A'

C'C

A'A

B B'

C C'

Head-on view of tracking paths fordifferent elevations

24

6 7

1 3

5



4-3

l Line AA' represents that the main lobe of the antenna is almost aligned properly. The mainlobe is at point 2, and the first side lobes are at points 1 and 3. Slightly adjust the azimuthof the antenna at point 2 until the peak signal appears.

l Line BB' represents that the elevation of the antenna slightly deviates from the main lobe.The signal peaks appear at points 4 and 5. The signal peak at point 4 is higher than thesignal peak at point 5 because of the antenna characteristics. As a result, point 4 may bemistaken for the peak point of the main lobe signal. The correct method is to set the azimuthof the antenna to the middle position between the two signal peaks. Then, adjust theelevation of the antenna until the three signal peaks of line AA' appear. Slightly adjust theelevation and azimuth of the antenna at point 2 until the peak signal appears.

l Line CC' represents that the elevation of the antenna completely deviates from the mainlobe and is almost aligned with the first side lobe. The signal peak of the first side lobe atpoint 6 and the signal peak of the first side lobe at point 7 appear as one signal peak. As aresult, points 6 and 7 may be mistaken for the peak point of the main lobe signal. The correctmethod is to set the azimuth of the antenna to the middle of points 6 and 7. Then, adjustthe elevation of the antenna until the three signal peaks of line AA' appear. Slightly adjustthe elevation and azimuth of the antenna at point 2 until the peak signal appears.

When the side lobe peak at one side is higher than the side lobe peak at the other side, as shownin Figure 4-4, a common error is to move the antenna left to right along line DD', or top tobottom along line EE'. As a result, point 1 may be mistaken for the peak point of the main lobesignal. The correct method is to adjust the elevation in the middle of points 1 and 2 or the azimuthin the middle of points 1 and 3. Several adjustments are required so that the three signal peaksof line AA' can appear. Slightly adjust the elevation and azimuth of the antenna at point 2 asshown in Figure 4-3 until the peak signal appears.

Figure 4-4 Aligning the antenna with the first side lobe

1 3

E E'

D

12

D'

D D'

E

E'

1 2

3

4.1.2 Aligning the Single-Polarized AntennasWhen you align the single-polarized antennas, you need to align the main lobes of the antennaby adjusting the azimuth and elevation of the antennas at both ends.

Prerequisitel The NE commissioning of the radio equipment at both ends of the radio link must be

complete.




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l The weather should be suitable for outdoor work. There should be no rain, snow, or fogbetween stations.

l The on-site conditions must meet the requirements for the antenna to operate at heights andthe personnel required to commission the antenna must be trained to work at high altitudes.

l The ATPC Function must be disabled.

l In the case of the hybrid mode, Setting the AM function to set the AM Enable Statusbedisabled, and the working mode of the microwave must be set to the QPSK modulationscheme.

Tools, Equipment, and Materialsl Adjustable wrench

l Telescope, interphone, and hex key wrench-set

l Multimeter (with a BNC connecter prepared at one end for future tests), north-stabilizedindicator

Precautionsl If the radio link is configured to 1+1 protection mode and one antenna is shared by the two

ODUs, power off the standby ODUs at both ends before aligning the antennas. After theantennas are aligned, power on the standby ODUs at both ends.

l If the radio link is configured in 1+1 SD mode, align the antennas as follows:

1. Power on the main ODUs at both ends, and ensure that they are power-on during thealignment.

2. Power off the standby ODUs at both ends, and align the main antennas at both ends.3. Power on the standby ODU at the local end. Maintain the position of the main antenna

at the remote end, and adjust the diversity antenna at the local end.4. Power on the standby ODU at the remote end. Maintain the position of the main

antenna at the local end, and adjust the diversity antenna at the remote end.l If the radio link is configured in 1+1 FD mode and two antennas are used at each end, align

the antenna as follows:

1. At both ends, power on the main ODUs, power off the standby ODUs, and align themain antennas.

2. At both ends, power off the main ODUs, power on the standby ODUs, and align thediversity antennas.

CAUTIONl You can adjust the azimuth angle and elevation angle of the antennas by adjusting the related

nuts or screws. For details, refer to the related installation guide.l In the IDU 605 2B/2F, the ODUs connect to the IF jumpers on the front panel of the IDU

605 through IF cables. The main ODU connects to the IF jumper over the ODU-M interface,and the standby ODU connects to the IF jumper over the ODU-S interface. On the front panelof the IDU, the power switch with a silkscreen of "ODU-M" controls the power supply ofthe main ODU, and the power switch with a silkscreen of "ODU-S" controls the power supplyof the standby ODU.



4-5

Procedure

Step 1 Determine the azimuth of the antenna according to the installation position and height of theantenna. Then, adjust the elevation of the antenna to the horizontal position.

Step 2 Connect a multimeter to the RSSI port on the ODU at the local end and test the voltage valueVBNC.

TIP

It is recommended that you make the test line terminated with a BNC connector at one end in advancebecause it is more convenient to test the voltage value VBNC.

Figure 4-5 Testing the RSSI voltage by using a multimeter

Step 3 Adjust the azimuth and elevation of the antenna as follows:

1. Keep the remote antenna fixed.

2. Use the multimeter to test the VBNC. At the local end, rotate the antenna widely in thehorizontal direction.When you rotate the antenna, the tested signal peaks may be as follows:

l Three signal peaks are tracked, for example, line AA' in Figure 4-3. In this case, adjustthe azimuth of the antenna to the peak position at point 2 as shown in Figure 4-3.

l Two signal peaks are tracked, for example, line BB' in Figure 4-3. In this case, adjustthe azimuth of the antenna to the middle of points 4 and 5 as shown in Figure 4-3. Then,adjust the elevation of the antenna so that the three signal peaks in the case of line AA'can appear. Adjust the antenna to the peak position at point 2 as shown in Figure 4-3.

l One signal peak is tracked, for example, line CC' in Figure 4-3. In this case, adjust theazimuth of the antenna to the middle of points 6 and 7 as shown in Figure 4-3. Then,




Issue 05 (2010-05-25)

adjust the elevation of the antenna so that the three signal peaks in the case of line AA'can appear. Adjust the antenna to the peak position at point 2 as shown in Figure 4-3.

3. Slightly adjust the elevation and azimuth at point 2 as shown in Figure 4-3 until theVBNC reaches the peak within the tracked range.

4. Adjust the antenna until the VBNC voltage reaches the peak value. Fix the local antenna.

NOTEWhen you tighten the antenna, ensure that the VBNC voltage remains the peak value.

Step 4 Repeat Step 2 to Step 3 to adjust the remote antenna. When the remote received signal level(RSL) reaches the peak value, tighten the remote antenna.

Step 5 Repeat Step 2 to Step 4 for two to four times and ensure that the RSL at the local end and theRSL at the remote end reach the peak value. Tighten the antennas at both ends.

Step 6 Use the multimeter to test the VBNC voltage at both ends. Obtain the current RSL by referringto the relation curve between the VBNC of ODUs and the RSLs at both ends.

NOTE

The curve diagram of the VBNC and RSL is put in the carton holding the ODU.

The actual RSL must be the same as planned by the network planning department.

NOTE

l If the actual receive power of the ODU is beyond the calculated power range +/-3 dB, the ODU indicatoron the IF board flashes yellow every 300 ms. If the received power is within the calculated power range,the ODU indicator is off.

l If the VBNC does not meet the requirements, refer to the OptiX RTN 600 Radio Transmission SystemIDU 605 Maintenance Guide for fault handling.

Step 7 Tighten all the screws of the antennas.

----End

4.2 Checking the Status of a Radio LinkYou can determine whether a radio link can normally transmit the ECC by checking the statusof the radio link.

PrerequisiteThe antennas must be aligned.


Web LCT

Precautions

Check the status of a radio link at only one end of the radio link.



4-7

Procedure

Step 1 Select the NE from the NE Explorer. Then, choose Configuration > Link Configuration fromthe Function Tree.

Step 2 In IF/ODU Configuration, select the corresponding IF board. Then, right-click the IF boardand choose HOP Management from the shortcut menu.

Step 3 In the displayed HOP Management window, choose Configuration > Link Configurationfrom the Function Tree. Then, click the IF/ODU Configuration tab.

Step 4 In IF/ODU Configuration, click Query.

Check the receive power and transmit power of the ODUs at both ends.l The actual transmit power of the ODU must be the same as the designed transmit power of

the ODU.

----End

4.3 Testing the Orderwire PhoneIf the station is installed with an orderwire phone, you can check whether the orderwire phonefunctions normally by testing the orderwire phone.

Prerequisitel The orderwire phone must be installed correctly at the station.

l The orderwire data must be configured.

l Aligning the antenna must be complete.

Tools, Equipment, and MaterialsNone.

Procedure

Step 1 Check the status of the orderwire phones at both sides.The status should meet the following requirements:l The ringing switch must be set to ON.

l The dialing mode switch must be set to T, that is, the dual-tone dialing mode must be selected.

Step 2 Dial the orderwire phone of the opposite equipment as follows:1. Pick up the orderwire phone, and press the TALK key on the front panel of the phone.

In this case, the red indicator on the upper right of the front panel is on, and is accompaniedby the dialing prompt tone.

2. Dial the orderwire phone number of the opposite equipment.Normally, after the opposite end answers, the talking quality is good and the voice is clear.

Step 3 Answer the orderwire phone as follows.1. The maintenance personnel at the opposite equipment side dials the orderwire phone of the

local equipment.




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Normally, the orderwire phone rings and at the same time the red indicator at the back ofthe phone flashes.

2. Pick up the phone, and press the TALK key to talk.In this case, the red indicator on the upper right of the front panel is on. Normally, thetalking quality is good and the voice is clear.

----End

4.4 Testing the E1 ServiceBy testing the E1 service, you can check whether the E1 service is available between stations.

4.4.1 Testing the E1 Services by Using a BER TesterYou can test the E1 services by connecting an E1 port of the equipment on the local side to aBER tester and performing loopback over an E1 port of the equipment on the opposite side.

4.4.2 Testing the E1 Service Through PRBSIn the absence of a BER tester, you can conduct a PRBS test to check the E1 service throughthe embedded test system of the IDU 605 tributary unit.

4.4.1 Testing the E1 Services by Using a BER TesterYou can test the E1 services by connecting an E1 port of the equipment on the local side to aBER tester and performing loopback over an E1 port of the equipment on the opposite side.

Prerequisitel The E1 service must be configured between stations.

l Aligning the antennas must be complete.

Tools, Equipment, and Materialsl BER tester

l Web LCT

PrecautionsNOTE


Procedure

Step 1 Connect the BER tester to the first E1 port of the equipment on the local side.

Step 2 On the equipment on the opposite side, use an E1 cable to loop back the services over the firstE1 port towards the tributary board, that is, hardware inloop over the E1 port.If the hardware inloop fails, perform software inloop over the E1 port by using the Web LCT.

Step 3 Test the BER for 5 to 10 minutes by using the BER tester.There should be no bit errors.



4-9


Step 5 Repeat Step 1 to Step 4 to test other E1 ports.

----End

4.4.2 Testing the E1 Service Through PRBSIn the absence of a BER tester, you can conduct a PRBS test to check the E1 service throughthe embedded test system of the IDU 605 tributary unit.

Prerequisitel The E1 service must be available between stations.


l The NEs must be in normal communication with the Web LCT.

Tools, Equipment, and MaterialsWeb LCT

Precautions

CAUTIONl When a PRBS test is performed, the services carried on the tested path are interrupted.

l The PRBS test can be performed only in a unidirectional manner and on one path at a time.

NOTE


Procedure

Step 1 Perform software inloop over the first E1 port of the opposite NE by using the Web LCT.

Step 2 On the Web LCT, select the E1 interface board of the local NE in the Object Tree.

Step 3 In the Function Tree, choose Configuration > PRBS Test.

Step 4 Select the first E1 port, and then set the following PRBS-related parameters:l Direction: Cross

l Duration:.5

l Measured in Time:.s

Step 5 Click Start to Test.The system displays a prompt dialog box.

Step 6 Click OK.




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Step 7 When the Progress column is 100%, click Query to check the test result.The Total PRBS column should be 0, and the curve diagram should be green.


Step 9 Repeat Step 1 to Step 7 to test all other E1 ports.

----End

4.5 Testing the Ethernet ServiceBy testing the Ethernet service, you can check whether the Ethernet service is available betweenstations.

4.5.1 Testing the Ethernet Service by Using One LaptopIf one laptop is available on site, you can check whether the Ethernet service is available bytesting the IP connections between the laptop and the opposite NE..

4.5.2 Testing the Ethernet Service by Using Two LaptopsIf two laptops are available on site, you can check whether the Ethernet service is available bytesting the IP connection between the two laptops.

4.5.3 Testing the Ethernet Service by Using the ETH-OAM FunctionThe IDU 605 1F/2F supports the ETH-OAM function. Hence, the Ethernet service can be testedby using the ETH-OAM function.

4.5.1 Testing the Ethernet Service by Using One LaptopIf one laptop is available on site, you can check whether the Ethernet service is available bytesting the IP connections between the laptop and the opposite NE..

PrerequisiteThe Ethernet service must be configured between stations.


l One laptop

Connection diagram for testing the Ethernet serviceThe following procedure illustrates the Ethernet service between NE 1 and NE 2, as shown inFigure 4-6.

Figure 4-6 Configuration for testing the Ethernet service

NE 1 NE2



4-11

Figure 4-7 Cable connection for the IDU (NE1)

NE1

Laptop A

IP address 129.9.100.100Subnet mask 255.255.0.0Default gateway Null

IP address of laptop A


NE2

IP address of NE2:129.9.0.2

Precautionsl If the working mode of the Ethernet board is different from the working mode of the network

adapter (auto-negotiation by default), configure the working mode of the external port ofthe Ethernet board. That is, set the working mode of the test port to the same mode as thenetwork adapter temporarily.

l If the TAG identifier of the Ethernet board is Tag Aware, you should change the identifierto Access temporarily. The default VLAN ID can be set according to the actual situation.

l For details about how to query and set the working mode and TAG identifier, see the OptiXRTN 600 Radio Transmission System IDU 605 Configuration Guide.




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Procedure

Step 1 On the IDU side of NE1, use an Ethernet cable to connect the Ethernet port of the laptop to theFE1 port of the equipment, as shown in Figure 4-7.

Step 2 On the IDU side of NE2, use an Ethernet cable to connect ETH port and FE1 port of theequipment, as shown in Figure 4-8. The Ethernet service ports transmit the Ethernet servicesbetween the two NEs.

Step 3 Set the IP address of the laptop, and ensure that the IP address and the IP address of NE 2 belongto the same network segment.

For example:

l The IP address of laptop A can be set as follows:– IP address: 129.9.100.100

– Subnet mask: 255.255.0.0

– Default gateway: null

Step 4 Display the Command Prompt window of laptop A, and run the ping 129.9.0.2 -n 200 -l 2000command.

NOTE

l 129.9.0.2 indicates the IP address of NE 2.

l -n Num indicates that a number of Num packets are sent to the opposite NE.

l -l Num indicates that the buffer area for transmission is Num bytes in size.

Step 5 After you run the command, check the result.There should not be lost packets, that is, the output display should contain the followinginformation:Lost = 0 (0% loss)

----End

4.5.2 Testing the Ethernet Service by Using Two LaptopsIf two laptops are available on site, you can check whether the Ethernet service is available bytesting the IP connection between the two laptops.

Prerequisite

The Ethernet service must be configured between stations.


l Two laptops

Connection diagram for testing the Ethernet service

The following procedure illustrates the Ethernet service between NE 1 and NE 2, as shown inFigure 4-9.



4-13

Figure 4-9 Configuration for testing the Ethernet service

NE 1 NE2


NE1

Laptop A

IP address 192.168.1.101Subnet mask 255.255.0.0

Default gateway Null

IP address of laptop A


NE2

Laptop B

192.168.1.102IP addressSubnet mask 255.255.0.0

Default gateway Null

IP address of laptop B




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Precautionsl If the working mode of the Ethernet board is different from the working mode of the network

adapter (auto-negotiation by default), configure the working mode of the external port ofthe Ethernet board. That is, set the working mode of the test port to the same mode as thenetwork adapter temporarily.

l If the TAG identifier of the Ethernet board is Tag Aware, you should change the identifierto Access temporarily. The default VLAN ID can be set according to the actual situation.

l For details about how to query and set the working mode and TAG identifier, refer to theOptiX RTN 600 Radio Transmission System IDU 605 Configuration Guide.

Procedure

Step 1 On the IDU side of NE1, use an Ethernet cable to connect the Ethernet port of laptop A to theFE1 port of the equipment, as shown in Figure 4-10.

Step 2 On the IDU side of NE2, use an Ethernet cable to connect the Ethernet port of laptop B to theFE1 port of the equipment, as shown in Figure 4-11.

Step 3 Set the IP addresses of both laptops, and ensure that the addresses belong to the same networksegment.

For example:

l The IP address of laptop A can be set as follows:– IP address: 192.168.1.101

– Subnet mask: 255.255.0.0


l The IP address of laptop B can be set as follows:– IP address: 192.168.1.102

– Subnet mask: 255.255.0.0


Step 4 Display the Command Prompt window, and run the ping 192.168.1.102 -n 200 -l 2000command.

NOTE

l 192.168.1.102 indicates the IP address of laptop B.

l -n Num indicates that a number of Num packets are sent to the opposite computer.

l -l Num indicates that the buffer area for transmission is Num bytes in size.

Step 5 After you run the command, check the result.There should not be lost packets, that is, the output display should contain the followinginformation:Lost = 0 (0% loss)

----End

4.5.3 Testing the Ethernet Service by Using the ETH-OAM FunctionThe IDU 605 1F/2F supports the ETH-OAM function. Hence, the Ethernet service can be testedby using the ETH-OAM function.



4-15

PrerequisiteThe Ethernet service must be configured on the NEs, and have Created the MaintenanceDomain,Created the Maintenance Association,Created the Maintenace Point.


Web LCT

Procedure

Step 1 Select the NE to be tested from the NE list.

Step 2 Choose Configuration > Ethernet Maintenance > Ethernet Service OAM from the FunctionTree.

Step 3 Select an established Ethernet service maintenance point from Ethernet Service OAM. Then,select Performance Detection from the shortcut menu.

Step 4 The Performance Detection dialog box is displayed. Set Send Mode to Burst Mode. Set thepacket length to 64 bytes, time-out to 5 seconds, and detection times to 20. Set the IDs of thesource maintenance point and sink maintenance point in Maintenance.

Step 5 Click Start Detect. After the detection is complete, the performance statistics are displayed inDetailed Information. Analyze the statistics to determine the service performance between thelocal equipment and the opposite equipment.The loss rate in the performance statistics must be 0.

Step 6 Repeat Steps 4 and 5. Change the packet length in Send Mode. Test the service performance ofthe 128-byte, 256-byte, 512-byte, 1024-byte, 1280-byte, and 1518-byte packets. The loss rateof packets in the performance statistics must be 0.For the Ethernet performance indexes, see the OptiX RTN 600 Radio Transmission System IDU605 Hardware Description .

----End

4.6 Switch Test of AM ModesIf a Hybrid microwave service is configured between two microwave stations, you can performerror-free switch of the AM modes to check whether the Hybrid service is available.

4.6.1 Switch Test of AM Modes by Using a BER TesterWhen the E1 BER tester is available on site and the Hybrid radio transmits the E1 service, youcan test the E1 service by using the BER tester and thus verify the AM bit-error-free switchingfunction.

4.6.2 Testing the AM Switching by Checking the Performance EventsWhen the E1 BER tester is not available on site and the Hybrid radio transmits only the Ethernetservice, you can verify the AM bit-error-free switching function by checking the performanceevents.




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4.6.1 Switch Test of AM Modes by Using a BER TesterWhen the E1 BER tester is available on site and the Hybrid radio transmits the E1 service, youcan test the E1 service by using the BER tester and thus verify the AM bit-error-free switchingfunction.

Prerequisitel The antennas must be aligned with each other.

l The modulation mode of the Hybrid radio at both stations must be set and the AM functionmust be enabled.

l The E1 service must be configured.

l The weather is favorable.


l Web LCT

Precautions

The following test procedure considers the E1 service between stations as an example.

NOTE

The NE supports the automatic release of software loopback, and the automatic release time is five minutesby default.

Procedure

Step 1 Connect the BER tester to the first E1 port of the equipment at the local end.

Step 2 On the equipment at the opposite end, perform an inloop on the first E1 port.If the hardware inloop is not available, perform the Software Inloop on the E1 port by usingthe Web LCT.

Step 3 Configuring the Hybrid/AM Attribute. At the local end, set the AM attribute to disable andthe Manually Specified Modulation Mode to QPSK.

Step 4 Querying the Working State of AM.The current modulation mode is QPSK.

Step 5 Test bit errors by using the BER tester.No bit error should occur.

Step 6 Configuring the Hybrid/AM Attribute. At the local end, set the AM attribute to enable. Then,set Modulation Mode of the Assured AM Capacity and Modulation Mode of the Full AMCapacity according to the station planning.

Step 7 Querying the Working State of AM.The current modulation mode should be the specified value in Modulation Mode of the FullAM Capacity.



4-17

NOTE

If the weather conditions are adverse, the modulation efficiency of the current mode may be lower thanthe value specified in Modulation Mode of the Full AM Capacity.

Step 8 Check the BER test result.No bit error should occur.

----End

4.6.2 Testing the AM Switching by Checking the PerformanceEvents

When the E1 BER tester is not available on site and the Hybrid radio transmits only the Ethernetservice, you can verify the AM bit-error-free switching function by checking the performanceevents.

Prerequisitel The antenna must be aligned with each other.

l The modulation mode of the Hybrid radio at both stations must be set and the AM functionmust be enabled.

l The weather is favorable.

Tools, Meters, and Materialsl Web LCT

Procedure

Step 1 Configuring the Hybrid/AM Attribute. At the local end, set the AM attribute to disable andthe Manually Specified Modulation Mode to QPSK.

Step 2 Query the 15-minute performance of the IF board at the local end.1. Select the corresponding IF board from the Object Tree in the NE Explorer.2. Choose Performance > Current Performance from the Function Tree.3. Set Monitored Object Filter Condition to All.4. Set Monitor Period to 15-Minute.5. In Count, select the other Errors. In Display Options, select Consecutive Severely

Errored Seconds Second.6. Click Query.

The value of the FEC_BEF_COR_ER should be zero.

Step 3 Querying the Working State of AM.The current modulation scheme is QPSK.

Step 4 Reset the performance register.1. Select the corresponding IF board from the Object Tree in the NE Explorer.2. Choose Performance > Current Performance from the Function Tree.3. Click Reset.

The confirmation dialog box is displayed.




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4. Click OK.

Step 5 Configuring the Hybrid/AM Attribute. Set the AM attribute at the local end to enable. Then,set Modulation Mode of the Assured AM Capacity and Modulation Mode of the Full AMCapacity according to the station planning.

Step 6 Repeat Step 2, that is, wait for a while and then query the 15-minute performance of the IF boardat the local end.The value of the FEC_BEF_COR_ER should be zero.

Step 7 Querying the Working State of AM.The current modulation mode should be the value specified in Modulation Mode of the FullAM Capacity.

NOTE

If the weather conditions are adverse, the modulation efficiency of the current mode may be lower thanthe value specified in Modulation Mode of the Full AM Capacity.

----End

4.7 Testing the IF 1+1 SwitchingIf the IDU 605 2B/2F is used, you can check whether the switching is normal by testing the IF1+1 switching.

Prerequisitel The equipment must be configured in IF 1+1 mode.



l Web LCT

PrecautionsIn the IDU 605 2B/2F, the ODUs connect to the IF jumpers on the front panel of the IDU 605through IF cables. The main ODU connects to the IF jumper over the ODU-M interface, and thestandby ODU connects to the IF jumper over the ODU-S interface. On the front panel of theIDU, the power switch with a silkscreen of "ODU-M" controls the power supply of the mainODU, and the power switch with a silkscreen of "ODU-S" controls the power supply of thestandby ODU.

NOTE


Procedure

Step 1 Connect one E1 port to the BER tester on the local equipment side.

Step 2 At the opposite equipment side, perform hardware inloop over the E1 port.



4-19

If the hardware inloop fails, perform software inloop over the E1 port by using the Web LCT.

Step 3 Test the BER by using the BER tester.There should be no bit errors.

Step 4 Check the working status of the board by using the Web LCT.1. Select an NE from the Object Tree in the NE Explorer, and then choose Configuration >

Link Configuration.2. Select IF 1+1 Protection, and then click Query.

In Protection Group, the Active Board of Device should be the active IF board (8-IF0).If 1+1 FD protection or 1+1 SD protection is used, the Active Board of Channel shouldalso be the active IF board (8-IF0).

NOTEIf a fault arises, you must rectify the fault and proceed to test the IF 1+1 protection.

Step 5 Power off the ODU-M on the front panel of the IDU.

Step 6 Check the BER test result.The service should recover immediately after a transient interruption.

Step 7 After the switching is complete, test the BER for 5 to 10 minutes.There should be no bit error.

Step 8 Power on the ODU-M on the front panel of the IDU.

Step 9 When Revertive Mode of the IF 1+1 protection is set to Revertive, test the BER by using theBER tester again.When the WTR time expires, the test result should indicate that the service recovers after atransient interruption. WTR Time is set to 600s by default. Test the BER depending on theactual configuration.


Step 11 At the opposite station, repeat Step 1 to Step 10 to test the IF 1+1 switching of the oppositeequipment.

----End

Related InformationIn the absence of a BER tester, you need not perform loopback over the E1 port or perform BERtesting. In this case, you need to check the status of Active Board of Device or Active Boardof Channel in Protection Group on the Web LCT when protection switching occurs or afterprotection switching is complete.

4.8 Testing the 24-Hour BERBy testing the 24-hour BER, you can check whether the equipment can transmit services stablyfor a long time.

PrerequisiteAligning the antenna must be complete.




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l Web LCT

PrecautionsIf the 24-hour BER cannot be tested for each HOP of the link because of restrictions of the actualsituation, choose the E1 service of the first node and the last node to perform the test. Thisoperation ensures that the test path covers all the radio links.

NOTE


Procedure

Step 1 At the opposite equipment side, extract several typical E1 services, and perform hardware inloopover the E1 ports.If the hardware inloop fails, perform software inloop over the E1 port using the Web LCT.

Step 2 On the local equipment side, connect these E1 services serially at the DDF, and then access themto the BER tester.

Figure 4-12 Serial connection of the E1 service

RX TXDDF

1234....

RX TX

BER tester

Step 3 Perform the 24-hour BER test by using the BER tester.

Step 4 Record the test result.It should meet the design requirements.

Step 5 Release the loopback and serial connection.

----End

Postrequisitel If the first 24-hour BER test does not meet the specified requirement, find out the cause

and rectify the fault. Perform another 24-hour BER test until the test is successful.



4-21

l If the BER exceeds the nominal value in the test for a serial connection, locate the fault byusing the dichotomizing search or other methods until each channel passes the 24-hourBER test independently.




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5 Network Management Supporting Tasks

About This Chapter

The network management supporting tasks include all the operations performed on the NMSduring the commissioning process.

5.1 Setting Tributary LoopbackThe IDU 605 supports the tributary inloop/outloop.

5.2 Setting the Automatic Release FunctionTo protect the NM and NE communication from improper operations, an NE supports theautomatic release of the ODU mute, loopback, and other operations that require you to exercisecaution. The automatic release time is five minutes by default. You can set whether to enablethe automatic release function and the automatic release time using the NMS.

5.3 Configuring the ATPC FunctionTo configure the ATPC function, set the ATPC attributes of the IF board.

5.4 Setting the Parameters of ODU PortsThis section describes how to set the parameters of ODU ports, including the RF attributes,power attributes, and advanced attributes of the ODU.

5.5 Configuring the Hybrid/AM AttributeThe Hybrid microwave supports the transmission of E1 services and Ethernet services andsupports the adaptive modulation (AM) function. Hence, the Hybrid microwave ensures thereliable transmission of the E1 services and flexible transmission of the Ethernet services whosebandwidth is large and changes dynamically.

5.6 Configuring External Ethernet PortsWhen an NE uses the external ports (that is, PORTs) of the Ethernet boards to access Ethernetservices, the attributes of the external ports need to be configured so that the external ports canwork with the data communication equipment on the client side to provide the normal access tothe Ethernet services.

5.7 Querying the Working State of AMYou can know the change of the AM mode by querying the working state of AM.

5.8 Creating MDsA maintenance domain (MD) defines the scope and level of the Ethernet OAM. The MDs ofdifferent levels and scopes can provide differentiated OAM services to users.

OptiX RTN 600 Radio Transmission SystemIDU 605 Commissioning Guide 5 Network Management Supporting Tasks


5-1

5.9 Creating MAsA maintenance domain (MD) can be divided into several independent maintenance associations(MA). By creating MAs, operators can associate specific Ethernet services with the MAs foreasy Ethernet OAM operation.

5.10 Creating MPsThe functions of the IEEE 802.1ag OAM can be used only after MPs are created.

5 Network Management Supporting TasksOptiX RTN 600 Radio Transmission System



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5.1 Setting Tributary LoopbackThe IDU 605 supports the tributary inloop/outloop.

Prerequisitel The communication between the NMS and the NE must be normal.

l You must be an NM user with "NE maintainer" authority or higher.

ContextThe tributary inloop is a process where signals at an E1 port are looped back at the tributary unittowards the IF unit.

Figure 5-1 Inloop

Tributary unitIF unit

PDH

The tributary outloop is a process where an E1 signal is looped back at the tributary unit of thelocal IDU towards the remote equipment.

Figure 5-2 Outloop

PDH

Tributary unitIF unit



5-3

Precautions

CAUTIONl The services may be interrupted at the port or on the path where the loopback is performed.

l A software loopback may be cleared automatically after some time (by default, it is clearedwithin five minutes). For details, see 5.2 Setting the Automatic Release Function.

Procedure

Step 1 Select the PDH interface board from the Object Tree.

Step 2 Choose Configuration > PDH Interface from the Function Tree.

Step 3 Choose By Function, and select Tributary Loopback from the drop-down list.

Step 4 Set the loopback status of the port or path according to the requirements.

Step 5 Click Apply.The system displays a prompt dialog box for confirmation.

Step 6 Click OK.

----End

5.2 Setting the Automatic Release FunctionTo protect the NM and NE communication from improper operations, an NE supports theautomatic release of the ODU mute, loopback, and other operations that require you to exercisecaution. The automatic release time is five minutes by default. You can set whether to enablethe automatic release function and the automatic release time using the NMS.


l You must be an NM user with "NE maintainer" authority or higher.

Procedure

Step 1 Select an NE from the Object Tree in the NE Explorer.

Step 2 Choose Configuration > Automatic Disabling of NE Function from the Function Tree.

Step 3 Specify Auto Disabling and Auto Disabling Time (min).

Step 4 Click Apply to complete the settings for the automatic release function.

----End




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5.3 Configuring the ATPC FunctionTo configure the ATPC function, set the ATPC attributes of the IF board.

PrerequisiteYou must be an NM user with "NE operator" authority or higher. That is, you must be an NEuser with "Operation Level" authority or higher.

The related IF board must be added.

Precautionsl In the case of the IF boards that are configured with the 1+1 protection, set only the ATPC

attributes of the main IF board.l The following procedure describes the configuration of ATPC parameters in the IF interface

configuration dialog box of the IF board. You can also set ATPC parameters in the followingconfiguration dialog box:IF/ODU configuration

NOTE

In the IF/ODU configuration dialog box, the ATPC adjustment thresholds cannot be modified.

Procedure

Step 1 Select the IF board from the Object Tree in the NE Explorer. Choose Configuration > IFInterface from the Function Tree.

Step 2 Click the ATPC Attributes tab.

Step 3 Set the ATPC attributes.

NOTE

The IF0 board of the IDU 605 1A/1B/2B does not support the ATPC Automatic Threshold EnableStatus.

Step 4 Click Apply.

----End



5-5

ParametersParameter Value Range Default Value Description

ATPC Enable Status Enabled, Disabled Disabled l This parameter specifies whether theATPC function is enabled. The ATPCfunction enables the transmit power of atransmitter to automatically trace thechange of the received signal level (RSL)at the receive end within the ATPCcontrol range.

l In the case of areas where fast fading issevere, it is recommended that you setthis parameter to Disabled.

ATPC UpperThreshold (dBm)

-20 to -75 -45 l Set the central value of the ATPC upperthreshold and the ATPC lower thresholdso that the central value is equal to therequired value of the receive power.

l Ensure that the difference between valuesof the automatic ATPC upper thresholdand the automatic ATPC lower thresholdis not less than 5 dB.

ATPC LowerThreshold (dBm)

-35 to -90 -70

ATPC AutomaticThreshold EnableStatus

Enabled, Disabled Enabled l The ATPC function enables the transmitpower of a transmitter to automaticallytrace the change of the received signallevel (RSL) at the receive end within theATPC control range.

l When the function is enabled, themanually set ATPC upper and lowerthresholds are invalid. The equipmentautomatically uses the preset ATPCupper and lower thresholds based on theworking mode of the IF board.

l When the function is disabled, themanually set ATPC upper and lowerthresholds are used.

l The IF0 board of the IDU 605 1A/1B/2Bdoes not support the ATPC AutomaticThreshold Enable Status.

NOTE

l Each of the ATPC parameters must be set to the same value at the two ends of a microwave link.

l During commissioning, set ATPC Enable Status to Disabled to ensure that the transmit power is notchanged. After the commissioning, re-set the ATPC attributes.




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5.4 Setting the Parameters of ODU PortsThis section describes how to set the parameters of ODU ports, including the RF attributes,power attributes, and advanced attributes of the ODU.

Prerequisite

You must be an NM user with "NE operator" authority or higher. That is, you must be an NEuser with "Operation Level" authority or higher.

The required IF boards must be added.

The corresponding ODU must be added in the slot layout diagram.

Context

Procedure

Step 1 Select the ODU from the Object Tree in the NE Explorer. Choose Configuration > ODUInterface from the Function Tree.

Step 2 Click the Radio Frequency Attributes tab.

Step 3 Configure the TX frequency and T/R spacing.

Step 4 Click Apply.

Step 5 Click the Power Attributes tab.

Step 6 Configure the transmit power and receive power of the ODU.

Step 7 Click Apply.

Step 8 Click the Advanced Attributes tab.

Step 9 Set Configure Transmission Status.

Step 10 Click Apply.

----End



5-7


Transmit Frequency(MHz)

- - l The parameter specifies the channelcenter frequency.

l This parameter cannot be set to a valuethat is less than the minimum Transmitfrequency supported by the ODU + 50%channel spacing or more than themaximum Transmit frequency supportedby the ODU - 50% channel spacing.

l The difference between the Transmitfrequencies of both the ends of a radiolink is a T/R spacing.

l Set this parameter according to theplanning.

Maximum TransmitPower (dBm)

- - l This parameter cannot be set to a valuethat exceeds the rated power rangesupported by the ODU.

l Set this parameter to limit the maximumtransmit power of the ODU within thispreset value. The maximum transmitpower adjusted by ATPC should notexceed this value.


Transmit Power(dBm)

- - l This parameter cannot be set to a valuethat exceeds the nominal power rangesupported by the ODU.

l The Transmit power of the ODU shouldbe set to the same value at both the endsof a radio link.





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Parameter Value Range Default Value Description

Receive Power(dBm)

- - l This parameter is used to set the expectedreceive power of the ODU and is mainlyused in the antenna alignment stage.After this parameter is set, the NEautomatically enables the antennamisalignment indicating function.

l When the antenna misalignmentindicating function is enabled, if theactual receive power of the ODU exceedsthe range of receive power±3 dB, theODU LED of the IF board connected tothe ODU is on (yellow) for 300 ms andoff for 300 ms repeatedly, indicating thatthe antenna is not aligned.

l After the antenna alignment, after thestate that the antenna is aligned lasts for30 minutes, the NE automaticallydisables the antenna misalignmentindicating function.


T/R Spacing (MHz) 0–4294967.295 - l This parameter indicates the spacingbetween the TX power and receive powerof the ODU. If Station Type of the ODUis TX high, the TX power is one T/Rspacing higher than the receive power. IfStation Type of the ODU is TX low, theTX power is one T/R spacing lower thanthe receive power.

l If the ODU supports only one T/Rspacing, set this parameter to 0,indicating that the T/R spacing supportedby the ODU is used.

l The T/R spacing of the ODU should beset to the same value at both the ends ofa radio link.

ConfigureTransmission Status

mute, unmute unmute l When this parameter is set to mute, thetransmitter of the ODU does not work butthe ODU can normally receivemicrowave signals.

l When this parameter is set to unmute, theODU can normally receive and transmitmicrowave signals.

l Generally, this parameter takes thedefault value.



5-9

5.5 Configuring the Hybrid/AM AttributeThe Hybrid microwave supports the transmission of E1 services and Ethernet services andsupports the adaptive modulation (AM) function. Hence, the Hybrid microwave ensures thereliable transmission of the E1 services and flexible transmission of the Ethernet services whosebandwidth is large and changes dynamically.

Prerequisite


Background Information

The IDU 605 1F/2F supports the Hybrid/AM function.

Procedure

Step 1 Select the target Hybrid IF board in the NE Explorer. Then, choose Configuration > Hybrid/AM Configuration from the Function Tree.

Step 2 Click Query.

Step 3 Set the parameters related to the Hybrid/AM function.

Step 4 Click Apply.

----End

Parameters


IF ChannelBandwidth

In the case of theIFH1 board ofthe IDU 605 1F/2F:l 7M

l 14M

l 28M

7M IF Channel Bandwidth indicates the channelspacing of the corresponding radio links. Set thisparameter to the planned value.

AM Mode Asymmetric - When this parameter is set to Asymmetric, an AMswitching in one direction of the radio link (whenthe conditions for triggering the AM switching aremet) does not cause an AM switching in the otherdirection of the radio link.




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AM Enable Status l Disable

l Enable

- l When this parameter is set to Disable, the radiolink uses the specified modulation scheme only.In this case, you need to select ManuallySpecified Modulation Mode.

l When this parameter is set to Enable, the radiolink uses the corresponding modulation schemeaccording to the channel conditions.

Hence, the Hybrid microwave can ensure thereliable transmission of the E1 services and providedynamic bandwidth for the Ethernet services whenthe AM function is enabled.

Modulation Modeof the Assured AMCapacity

l QPSK

l 16QAM

l 32QAM

l 64QAM

l 128QAM

l 256QAM

QPSK This parameter specifies the lowest modulationscheme that the AM function supports. Set thisparameter to the planned value. Generally, the valueof this parameter is determined by the servicetransmission bandwidth that the Hybrid microwavemust ensure and the availability of the radio link thatcorresponds to this modulation scheme.This parameter is valid only when AM EnableStatus is set to Enable.

Modulation Modeof the Full AMCapacity

l QPSK

l 16QAM

l 32QAM

l 64QAM

l 128QAM

l 256QAM

128QAM This parameter specifies the highest modulationscheme that the AM function supports. Set thisparameter to the planned value. Generally, the valueof this parameter is determined by the bandwidth ofthe services that need to be transmitted over theHybrid microwave and the availability of the radiolink that corresponds to this modulation scheme.This parameter is valid only when AM EnableStatus is set to Enable.

Manually SpecifiedModulation Mode

l QPSK

l 16QAM

l 32QAM

l 64QAM

l 128QAM

l 256QAM

- This parameter specifies the modulation schemethat the radio link uses for the transmission.This parameter is valid only when AM EnableStatus is set to Disable.

E1 Capacity 1–16 - This parameter specifies the number of E1 servicesthat can be transmitted in the Hybrid work mode.The value of this parameter cannot exceed themaximum number of E1 services permitted inAssured E1 Capacity.E1 Capacity must be set to the same value at bothends of a radio link.



5-11

5.6 Configuring External Ethernet PortsWhen an NE uses the external ports (that is, PORTs) of the Ethernet boards to access Ethernetservices, the attributes of the external ports need to be configured so that the external ports canwork with the data communication equipment on the client side to provide the normal access tothe Ethernet services.

Prerequisite


Precautionsl The IDU 605 IF/2F supports the Ethernet board EMS4 (a logical board).

Ethernet ports FE1 - FE3 of an EMS4 board (a logical board) correspond to PORT1 -PORT3 respectively. Port FE4/GE1 of an EMS4 board corresponds to PORT4.

Procedure

Step 1 Select the Ethernet board in the NE Explorer. Choose Configuration > Ethernet InterfaceManagement > Ethernet Interface from the Function Tree. Select External Port.

Step 2 Set the basic attributes of the port.

1. Click the Basic Attributes tab.

2. Set the basic attributes of the port.

3. Click Apply.

Step 3 Set the flow control mode of the port.

1. Click the Flow Control tab.

2. Set the flow control mode of the port.

3. Click Apply.

Step 4 Optional: Set the TAG attributes of the port.

1. Click the TAG Attributes tab.

2. Set the TAG attributes of the port.




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3. Click Apply.

Step 5 Optional: Set the advanced attributes of the port.1. Click the Advanced Attributes tab.2. Set the advanced attributes of the port.

3. Click Apply.

----End


Enabled/Disabled Enabled, Disabled Disabled l In the case of the port that accessesservices, set this parameter to Enabled.In the case of other ports, set thisparameter to Disabled.

l If this parameter is set to Enabled for theport that does not access services, anETH_LOS alarm may be generated.

Working Mode 10M Half-Duplex,10M Full-Duplex,100M Half-Duplex,100M Full-Duplex,Auto-Negotiation (alogical board EMS4,PORT1 - PORT3)10M Half-Duplex,10M Full-Duplex,100M Half-Duplex,100M Full-Duplex,1000M Full-Duplex, Auto-Negotiation (alogical board EMS4,PORT4)

Auto-Negotiation l The Ethernet ports of different typessupport different working modes.

l When the equipment on the opposite sideworks in the auto-negotiation mode, setthe working mode of the equipment onthe local side to Auto-Negotiation.

l When the equipment on the opposite sideworks in the full-duplex mode, set theworking mode of the equipment on thelocal side to 10M Full-Duplex, 100MFull-Duplex, or 1000M Full-Duplexdepending on the port rate of theequipment on the opposite side.

l When the equipment on the opposite sideworks in the half-duplex mode, set theworking mode of the equipment on thelocal side to 10M Half-Duplex, 100MHalf-Duplex, or Auto-Negotiationdepending on the port rate of theequipment on the opposite side.



5-13


Maximum FrameLength

1522/1632 (a logicalboard EMS4)

1522 The value of this parameter should begreater than the maximum length of a frameamong all the data frames to be transported.In the case of the IDU 605 1F/2F, setMaximum Frame Length of all the portson the logical EMS4 board to the samevalue.

PHY Loopback Non-Loopback,Inloop

Non-Loopback l When this parameter is set to Inloop, theEthernet physical signals that are to besent to the remote end are looped back.

l In normal cases, use the default value.

Non-AutonegotiationFlow Control Mode

Disabled, Enable (alogical boardEMS4)

Disabled l This parameter is used when WorkingMode is not set to Auto-Negotiation.

l When this parameter is set to Enable forthe logical EMS4 board, the port can sendPAUSE frames and process receivedPAUSE frames.

l The non-autonegotiation flow controlmode of the equipment on the local sidemust match the non-autonegotiation flowcontrol mode of the equipment on theopposite side.

AutonegotiationFlow Control Mode

Disabled, EnableSymmetric FlowControl (a logicalboard EMS4)

Disabled l This parameter is used when WorkingMode is set to Auto-Negotiation.

l When this parameter is set to EnableSymmetric Flow Control, the port cansend and process PAUSE frames.

l The autonegotiation flow control mode ofthe equipment on the local side mustmatch the autonegotiation flow controlmode of the equipment on the oppositeside.

TAG Access, Tag Aware,Hybrid

Tag Aware l When ports are configured with TAGflags, the ports process frames by usingthe methods provided in Table 5-1.

l If all the accessed services are frameswith the VLAN tag (tagged frames), setthis parameter to Tag Aware.

l If all the accessed services are frames thatdo not have the VLAN tag (untaggedframes), set this parameter to Access.

l When the accessed services containtagged frames and untagged frames, setthis parameter to Hybrid.




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Default VLAN ID 1 to 4095 1 l This parameter is valid only when TAGis set to Access or Hybrid.

l For using this parameter, see Table 5-1.

l Set this parameter according to actualsituations.

VLAN Priority 0 to 7 0 l This parameter is valid only when TAGis set to Access or Hybrid.

l For using this parameter, see Table 5-1.

l When the VLAN priority is required todivide streams or to be used for otherpurposes, set this parameter according toactual situations. Generally, it isrecommended that you use the defaultvalue.

Enabling BroadcastPacket Suppression

Enabled, Disabled Disabled This parameter specifies whether to restrictthe traffic of broadcast packets according tothe ratio of the broadcast packets to the totalpackets. When a broadcast storm may occurin the equipment on the opposite side, setthis parameter to Enabled.

Broadcast PacketSuppressionThreshold

10% to 100% 30% The port discards the received broadcastpackets when the ratio of the receivedbroadcast packets to the total packetsexceeds the value of this parameter. Thevalue of this parameter should be greaterthan the ratio of the broadcast packets to thetotal packets when the broadcast storm doesnot occur. Generally, set this parameter to30% or a greater value.

Loop Detection Disabled, Enabled Disabled Sets whether to enable loop detection, whichis used to check whether a loop exists at theport.

Loop Port Shutdown Disabled, Enabled Enabled Sets whether to enable the loop portshutdown function. After the loop portshutdown function is enabled, the port isautomatically shut down when a self-loop isdetected. It is recommended that thisparameter adopts the default value.



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Table 5-1 Methods used by ports to process data frames

Direction Type of DataFrame

How to Process

Tag aware Access Hybrida

Ingress Tagged frame The port receives theframe.

The port discards theframe.

The port receives theframe.

Untagged frame The port discards theframe.

The port adds theVLAN tag to whichDefault VLAN IDand VLANPrioritycorrespond, to theframe, and receivesthe frame.

The port adds theVLAN tag to whichDefault VLAN IDand VLANPrioritycorrespond, to theframe, and receivesthe frame.

Egress Tagged frame The port transmitsthe frame.

The port strips theVLAN tag from theframe and thentransmits the frame.

l If the VLAN IDin the frame isDefault VLANID, the port stripsthe VLAN tagfrom the frameand thentransmits theframe.

l If the VLAN IDin the frame is notDefault VLANID, the portdirectly transmitsthe frame.

NOTE

a: When the TAG attribute of a port on the EMS4 board (a logical board) that is supported by the IDU 6051F/2F is set to Hybrid, the packet that is forwarded by this port remains the same as the packet that entersthe bridge.

5.7 Querying the Working State of AMYou can know the change of the AM mode by querying the working state of AM.


l You must be an NM user with "NE monitor" authority or higher.




Issue 05 (2010-05-25)

Related InformationThe AM working state can be queried only when the IDU 605 1F/2F is configured with hybridmicrowave services.

Procedure

Step 1 Select an NE from the Object Tree in the NE Explorer.

Step 2 Select the corresponding IFH1 board from the NE slot layout on the right side.

Step 3 Choose Configuration > Hybrid/AM Configuration from the Function Tree.

Step 4 Select the corresponding IFH1 board in the Hybrid/AM Configuration tab page.

Step 5 Click Query.The current modulation modes of the transmit end and the receive end of the IFH1 board aredisplayed.

----End

5.8 Creating MDsA maintenance domain (MD) defines the scope and level of the Ethernet OAM. The MDs ofdifferent levels and scopes can provide differentiated OAM services to users.


The board that supports the creation of the MD must be created.

Procedure

Step 1 In the NE Explorer interface, select an NE, and choose Configuration > EthernetMaintenance > Ethernet Service OAMfrom the Function Tree.

Step 2 In the right-hand pane, click OAM Configuration to display the OAM Configuration dialogbox.



5-17

NOTE

In this user interface, you can maintain or delete OAM MDs.

Step 3 Click New and select Create MD from the drop-down list.

Step 4 In the New Maintenance Domain dialog box displayed, configure the correspondingparameters.

Step 5 Click Apply.

Step 6 Click Close.

----End

ParametersField Value Default Description

MaintenanceDomain Name

For example: MD1 - Displays or sets themaintenance domainname.

MaintenanceAssociation Name

For example: MA1 - Displays or sets themaintenanceassociation name.




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Field Value Default Description

MaintenanceDomain Level

Consumer High(7),Consumer Middle(6), Consumer Low(5), Provider High(4), Provider Low(3),Operator High(2),Operator Middle(1),Operator Low(0)

Operator Low(0) Displays or sets themaintenance domainlevel. The greater thevalue, the higher thepriority.

Maintenance Level Consumer High(7),Consumer Middle(6), Consumer Low(5), Provider High(4), Provider Low(3),Operator High(2),Operator Middle(1),Operator Low(0)

Operator Low(0) The priority of theMP is the priority ofthe MD. The greaterthe value, the higherthe priority.

5.9 Creating MAsA maintenance domain (MD) can be divided into several independent maintenance associations(MA). By creating MAs, operators can associate specific Ethernet services with the MAs foreasy Ethernet OAM operation.


Ethernet services must be already created.

The MD must be created.

Procedure

Step 1 In the NE Explorer interface, select an NE, and choose Configuration > EthernetMaintenance > Ethernet Service OAMfrom the Function Tree.

Step 2 Click OAM Configuration in the right window to display the OAM Configuration dialog box.

NOTE

In this user interface, you can create or delete OAM maintenance Association (MAs).

Step 3 Click New, select Create MA from the drop-down list.



5-19

Step 4 In the dialog box of New Maintenance Association displayed, configure the OAM parameters.

Step 5 ClickApply. The Operation Result dialog box is displayed, indicating that the operation wassuccessful.

Step 6 Click Close.

----End

ParametersField Value Default Description

MaintenanceDomain Name

For example: MD1 - Displays or sets themaintenance domainname.NOTE

The Huawei MP donot need to create MD.When creating MP,please select NULL.

MaintenanceAssociation Name

For example: MA1 - Displays or sets themaintenanceassociation name.NOTE

The Huawei MP donot need to create MA.When creating MP,please select NULL.

MaintenanceDomain Level

Consumer High(7),Consumer Middle(6), Consumer Low(5), Provider High(4), Provider Low(3),Operator High(2),Operator Middle(1),Operator Low(0)

Operator Low(0) Displays or sets themaintenance domainlevel. The greater thevalue, the higher thepriority.

5.10 Creating MPsThe functions of the IEEE 802.1ag OAM can be used only after MPs are created.


The Ethernet service must be created and activated.




Issue 05 (2010-05-25)

The MA and MD must be created before creating a stadard MP.

Precaution

In an OAM test, all maintenance points that are involved in the operating of the same serviceflow must be in the same maintenance domain. In an existing maintenance domain involved inthe same service flow, creating a maintenance point of the same level or a higher level maydamage the existing maintenance domain. As a result, the OAM test fails.

Procedure

Step 1 In the NE Explorer, select an Ethernet board and choose Configuration > EthernetMaintenance > Ethernet Service OAM from the Function Tree.

Step 2 Click New and the Create MP dialog box is displayed. Complete the information.

NOTE

l VLAN ID: Leave this field blank for PORT services. For PORT+VLAN services, set the VLAN IDof the services to be monitored.

l Service Direction: Only MEPs have the directions. Set the direction from the external physical portto the system-side VCTRUNK port as the SDH direction, and from the system-side VCTRUNK portto the external physical port as the IP direction. MIPs can only be set as bidirectional. . If the data isfrom the exterior board, the MP direction is IP. The MIPs can be only bidirectional.

Step 3 Optional: Click Advanced. In the dialog box displayed, set the corresponding parameters andclick OK.

NOTE

If an MEP is created, you can choose whether to perform the following configuration.

l Activate the CC and configure the sending period of the CC test.

l Set the timeout time for the LB or LT test.

Step 4 Click OK. A prompt appears telling you that the operation was successful. Click Close to finishthe operation.

----End

Parameters


Node slot-board-port - Selects the port where you want tocreate an MP.



5-21


VLAN ID 0 to 4095 - Configure the ID of the VLAN towhich the service of the MPbelongs. The information iscontained in the OAM data packet.The MPs with the same VLAN IDin an MD can communicate witheach other.

MP ID Standard MP:00-00-0000 toFF-FF-1FFFHuawei MP:00-00-0000 toFF-FF-FF00

- The MP ID (Ethernet OAM)specifies the flag that uniquelyidentifies a maintenance point. Thebytes from higher bits to lower bitsare respectively described here. Thefirst byte indicates the networknumber. The second byte indicatesthe number of the node in the localnetwork. The third and forth bytesindicate the ID of the maintenancepoint on the network node. Themaintenance point ID must beunique in the entire network.

Type MEP, MIP MEP The Type (Ethernet OAM)specifies the maintenance pointtype defined in IEEE 802.1ag. MEPstands for Maintenance associationEnd Point, and MIP stands forMaintenance associationIntermediate Point.

Level Consumer High(7), ConsumerMiddle(6),Consumer Low(5), ProviderHigh(4),Provider Low(3), OperatorHigh(2),OperatorMiddle(1),Operator Low(0)

Operator Low(0)

The priority of the MP is the priorityof the MD. The greater the value,the higher the priority.

Direction SDH, IP,Bidirectional

- Sets the transmit direction of OAMframes. Select SDH, WDM, IP forMEP nodes, and Bidirectional forMIP nodes.




Issue 05 (2010-05-25)


CC Status Activate,Inactivate

Inactivate The CC Status (Ethernet OAM)parameter specifies whether toactivate the connectivity check(CC) function at a maintenancepoint.

LB Timeout(ms)

3000-60000, inincrements of100

5000 Sets the LB test timeout.

LT Timeout(ms)

3000-60000, inincrements of100

5000 Sets the LT test timeout.

CCM SendingPeriod(ms)

In the case of astandard MP,1000, 10000,6000, 600000In the case of aHuawei MP,1000 to 60000.

In the case of astandard MP,1000.In the case of aHuawei MP,5000.

Sets the time interval for sendingthe CCM packet at the maintenancepoint where the CC test isperformed.l If the time interval is very short,

excessive service bandwidths areoccupied.

l If the time interval is very long,the CC test is less sensitive to theservice interruption. Thus, thedefault value is recommended.



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A Glossary

Terms are listed in an alphabetical order.

A.1 0-9This section provides the terms starting with numbers.

A.2 A-EThis section provides the terms starting with letters A to E.

A.3 F-JThis section provides the terms starting with letters F to J.

A.4 K-OThis section provides the terms starting with letters K to O.

A.5 P-TThis section provides the terms starting with letters P to T.

A.6 U-ZThis section provides the terms starting with letters U to Z.

OptiX RTN 600 Radio Transmission SystemIDU 605 Commissioning Guide A Glossary


A-1

A.1 0-9This section provides the terms starting with numbers.

1+1 protection An architecture that has one normal traffic signal, one working SNC/trail, one protectionSNC/trail and a permanent bridge. At the source end, the normal traffic signal ispermanently bridged to both the working and protection SNC/trail. At the sink end, thenormal traffic signal is selected from the better of the two SNCs/trails. Due to thepermanent bridging, the 1+1 architecture does not allow an extra unprotected trafficsignal to be provided.

1U The standard electronics industries association (EIA) rack unit (44 mm/1.75 in.)

802.1Q in 802.1Q 802.1Q in 802.1Q (QinQ) is a VLAN feature that allows the equipment to add a VLANtag to a tagged frame.The implementation of QinQ is to add a public VLAN tag to aframe with a private VLAN tag, making the frame encapsulated with two layers of VLANtags. The frame is forwarded over the service provider's backbone network based on thepublic VLAN tag. By this, a layer 2 VPN tunnel is provided to customers.The QinQfeature enables the transmission of the private VLANs to the peer end transparently.

A.2 A-EThis section provides the terms starting with letters A to E.

A

ACAP See adjacent channel alternate polarization

adaptive modulation A technology that is used to automatically adjust the modulation mode according to thechannel quality. When the channel quality is favorable, the equipment adopts a high-efficiency modulation mode to improve the transmission efficiency and the spectrumutilization of the system. When the channel quality is degraded, the equipment adoptsthe low-efficiency modulation mode to improve the anti-interference capability of thelink that carries high-priority services.

ADC See Analog to Digital Converter

add/drop multiplexer Add/Drop Multiplexing. Network elements that provide access to all or some subset ofthe constituent signals contained within an STM-N signal. The constituent signals areadded to (inserted), and/or dropped from (extracted) the STM-N signal as it passedthrough the ADM.

Address ResolutionProtocol

Address Resolution Protocol (ARP) is an Internet Protocol used to map IP addresses toMAC addresses. It allows hosts and routers to determine the link layer addresses throughARP requests and ARP responses. The address resolution is a process in which the hostconverts the target IP address into a target MAC address before transmitting a frame.The basic function of the ARP is to query the MAC address of the target equipmentthrough its IP address.

adjacent channelalternate polarization

A channel configuration method, which uses two adjacent channels (a horizontalpolarization wave and a vertical polarization wave) to transmit two signals.

ADM See add/drop multiplexer

A GlossaryOptiX RTN 600 Radio Transmission System


A-2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

Issue 05 (2010-05-25)

Administrative Unit The information structure which provides adaptation between the higher order path layerand the multiplex section layer. It consists of an information payload (the higher orderVC) and an AU pointer which indicates the offset of the payload frame start relative tothe multiplex section frame start.

AGC See Automatic Gain Control

AM See adaptive modulation

Analog to DigitalConverter

An electronic circuit that converts continuous signals to discrete digital numbers. Thereverse operation is performed by a digital-to-analog converter (DAC).

APS See Automatic Protection Switching

ARP See Address Resolution Protocol

ASK amplitude shift keying

ATPC See automatic transmit power control

AU See Administrative Unit

Automatic GainControl

A process or means by which gain is automatically adjusted in a specified manner as afunction of a specified parameter, such as received signal level.

Automatic ProtectionSwitching

Automatic Protection Switching (APS) is the capability of a transmission system todetect a failure on a working facility and to switch to a standby facility to recover thetraffic.

automatic transmitpower control

A method of adjusting the transmit power based on fading of the transmit signal detectedat the receiver

B

Base Station Controller A logical entity that connects the BTS with the MSC in a GSM network. It interworkswith the BTS through the Abis interface, the MSC through the A interface. It providesthe following functions: Radio resource management, Base station management, Powercontrol, Handover control, and Traffic measurement. One BSC controls and managesone or more BTSs in an actual network.

BER See Bit Error Rate

BIOS Basic Input Output System

BIP Bit-Interleaved Parity

bit error An incompatibility between a bit in a transmitted digital signal and the correspondingbit in the received digital signal.

Bit Error Rate Bit error rate. Ratio of received bits that contain errors. BER is an important index usedto measure the communications quality of a network.

BPDU See Bridge Protocol Data Unit

Bridge Protocol DataUnit

The data messages that are exchanged across the switches within an extended LAN thatuses a spanning tree protocol (STP) topology. BPDU packets contain information onports, addresses, priorities and costs and ensure that the data ends up where it wasintended to go. BPDU messages are exchanged across bridges to detect loops in anetwork topology. The loops are then removed by shutting down selected bridgesinterfaces and placing redundant switch ports in a backup, or blocked, state.

BSC See Base Station Controller



A-3

C

C-VLAN Customer VLAN

CAR See committed access rate

CBS See Committed Burst Size

CCDP See Co-Channel Dual Polarization

Central ProcessingUnit

The CPU is the brains of the computer. Sometimes referred to simply as the processoror central processor, the CPU is where most calculations take place.

CF See compact flash

CGMP Cisco Group Management Protocol

CIR See Committed Information Rate

CIST See Common and Internal Spanning Tree

Class of Service A class object that stores the priority mapping rules. When network congestion occurs,the class of service (CoS) first processes services by different priority levels from highto low. If the bandwidth is insufficient to support all services, the CoS dumps the servicesof low priority.

Co-Channel DualPolarization

A channel configuration method, which uses a horizontal polarization wave and a verticalpolarization wave to transmit two signals. The Co-Channel Dual Polarization is twicethe transmission capacity of the single polarization.

committed access rate A traffic control method that uses a set of rate limits to be applied to a router interface.CAR is a configurable method by which incoming and outgoing packets can be classifiedinto QoS (Quality of Service) groups, and by which the input or output transmission ratecan be defined.

Committed Burst Size committed burst size. A parameter used to define the capacity of token bucket C, that is,the maximum burst IP packet size when the information is transferred at the committedinformation rate. This parameter must be larger than 0. It is recommended that thisparameter should be not less than the maximum length of the IP packet that might beforwarded.

CommittedInformation Rate

The rate at which a frame relay network agrees to transfer information in normalconditions. Namely, it is the rate, measured in bit/s, at which the token is transferred tothe leaky bucket.

Common and InternalSpanning Tree

Common and Internal Spanning Tree. The single Spanning Tree calculated by STP andRSTP together with the logical continuation of that connectivity through MST Bridgesand regions, calculatedby MSTP to ensure that all LANs in the Bridged Local AreaNetwork are simply and fully connected.

compact flash Compact flash (CF) was originally developed as a type of data storage device used inportable electronic devices. For storage, CompactFlash typically uses flash memory ina standardized enclosure.

CoS See Class of Service

CPU See Central Processing Unit

CRC See Cyclic Redundancy Check




Issue 05 (2010-05-25)

cross polarizationinterferencecancellation

A technology used in the case of the Co-Channel Dual Polarization (CCDP) to eliminatethe cross-connect interference between two polarization waves in the CCDP.

Cyclic RedundancyCheck

A procedure used in checking for errors in data transmission. CRC error checking usesa complex calculation to generate a number based on the data transmitted. The sendingdevice performs the calculation before transmission and includes it in the packet that itsends to the receiving device. The receiving device repeats the same calculation aftertransmission. If both devices obtain the same result, it is assumed that the transmissionwas error free. The procedure is known as a redundancy check because each transmissionincludes not only data but extra (redundant) error-checking values.

D

Data CommunicationNetwork

A communication network used in a TMN or between TMNs to support the DataCommunication Function (DCF).

Data CommunicationsChannel

The data channel that uses the D1-D12 bytes in the overhead of an STM-N signal totransmit information on operation, management, maintenance and provision (OAM&P)between NEs. The DCC channels that are composed of bytes D1-D3 is referred to as the192 kbit/s DCC-R channel. The other DCC channel that are composed of bytes D4-D12is referred to as the 576 kbit/s DCC-M channel.

DC See Direct Current

DC-C See DC-Return Common (with Ground)

DC-I See DC-Return Isolate (with Ground)

DC-Return Common(with Ground)

A power system, in which the BGND of the DC return conductor is short-circuited withthe PGND on the output side of the power supply cabinet and also on the line betweenthe output of the power supply cabinet and the electric equipment.

DC-Return Isolate(with Ground)

A power system, in which the BGND of the DC return conductor is short-circuited withthe PGND on the output side of the power supply cabinet and is isolated from the PGNDon the line between the output of the power supply cabinet and the electric equipment.

DCC See Data Communications Channel

DCN See Data Communication Network

Differentiated ServicesCode Point

Differentiated Services CodePoint. A marker in the header of each IP packet using bits0-6 in the DS field. Routers provide differentiated classes of services to various servicestreams/flows based on this marker. In other words, routers select corresponding PHBaccording to the DSCP value.

digital modulation A digital modulation controls the changes in amplitude, phase, and frequency of thecarrier based on the changes in the baseband digital signal. In this manner, theinformation can be transmitted by the carrier.

Direct Current Electrical current whose direction of flow does not reverse. The current may stop orchange amplitude, but it always flows in the same direction.

Distance VectorMulticast RoutingProtocol

Distance Vector Multicast Routing Protocol. The DVMRP protocol is an Internetgateway protocol mainly based on the RIP. The protocol implements a typical densemode IP multicast solution. The DVMRP protocol uses IGMP to exchange routingdatagrams with its neighbors.

DSCP See Differentiated Services Code Point



A-5

dual-polarized antenna An antenna intended to radiate or receive simultaneously two independent radio wavesorthogonally polarized.

DVMRP See Distance Vector Multicast Routing Protocol

E

E-LAN Ethernet-LAN

ECC See Embedded Control Channel

Electro MagneticInterference

Any electromagnetic disturbance that interrupts, obstructs, or otherwise degrades orlimits the effective performance of electronics/electrical equipment.

electromagneticcompatibility

Electromagnetic compatibility is the condition which prevails when telecommunicationsequipment is performing its individually designed function in a common electromagneticenvironment without causing or suffering unacceptable degradation due to unintentionalelectromagnetic interference to or from other equipment in the same environment.[NTIA]

Embedded ControlChannel

An ECC provides a logical operations channel between SDH NEs, utilizing a datacommunications channel (DCC) as its physical layer.

EMC See electromagnetic compatibility

EMI See Electro Magnetic Interference

EPL See Ethernet Private Line

EPLAN See ethernet private lan service

equalization A method of avoiding selective fading of frequencies. Equalization can compensate forthe changes of amplitude frequency caused by frequency selective fading.

ERPS See ethernet ring protection switching

ES-IS End System to Intermediate System

ethernet private lanservice

An Ethernet service type, which carries Ethernet characteristic information over adedocated bridge, point-to-multipoint connections, provided by SDH, PDH, ATM, orMPLS server layer networks.

Ethernet Private Line A point-to-point interconnection between two UNIs without SDH bandwidth sharing.Transport bandwidth is never shared between different customers.

ethernet ringprotection switching

protection switching mechanisms for ETH layer Ethernet ring topologies.

ethernet virtual privatelan service

An Ethernet service type, which carries Ethernet characteristic information over a sharedbridge, point-to-multipoint connections, provided by SDH, PDH, ATM, or MPLS serverlayer networks.

ethernet virtual privateline service

An Ethernet service type, which carries Ethernet characteristic information over sharedbandwidth, point-to-point connections, provided by SDH, PDH, ATM, or MPLS serverlayer networks.

ETSI See European Telecommunications Standards Institute

EuropeanTelecommunicationsStandards Institute

A standards-setting body in Europe. Also the standards body responsible for GSM.




Issue 05 (2010-05-25)

EVPL See ethernet virtual private line service

EVPLAN See ethernet virtual private lan service

A.3 F-JThis section provides the terms starting with letters F to J.

F

Fast Ethernet A type of Ethernet with a maximum transmission rate of 100 Mbit/s. It complies withthe IEEE 802.3u standard and extends the traditional media-sharing Ethernet standard.

fast link pulse The likn pulse that is used to encode information during automatic negotiation.

FCS Frame Check Sequence

FD See frequency diversity

FE See Fast Ethernet

FEC See Forward Error Correction

Field ProgrammableGate Array

A type of semi-customized circuit used in the Application Specific Integrated Circuit(ASIC) field. It is developed on the basis of the programmable components, such as thePAL, GAL, and EPLD. It not only remedies the defects of customized circuits, but alsoovercomes the disadvantage of the original programmable components in terms of thelimited number of gate arraies.

FIFO See First in First out

File Transfer Protocol A member of the TCP/IP suite of protocols, used to copy files between two computerson the Internet. Both computers must support their respective FTP roles: one must be anFTP client and the other an FTP server.

First in First out A stack management mechanism. The first saved data is first read and invoked.

FLP See fast link pulse

Forward ErrorCorrection

A bit error correction technology that adds the correction information to the payload atthe transmit end. Based on the correction information, the bit errors generated duringtransmission are corrected at the receive end.

FPGA See Field Programmable Gate Array

frequency diversity A diversity scheme that enables two or more microwave frequencies with a certainfrequency interval are used to transmit/receive the same signal and selection is thenperformed between the two signals to ease the impact of fading.

FTP See File Transfer Protocol

G

gateway networkelement

A network element that is used for communication between the NE application layer andthe NM application layer

GE See Gigabit Ethernet



A-7

Generic traffic shaping A traffic control measure that initiatively adjusts the output speed of the traffic. This isto adapt the traffic to network resources that can be provided by the downstream routerto avoid packet discarding and congestion.

GFP Generic Framing Procedure

Gigabit Ethernet GE adopts the IEEE 802.3z. GE is compatible with 10 Mbit/s and 100 Mbit/s Ethernet.Itruns at 1000Mbit/s. Gigabit Ethernet uses a private medium, and it does not supportcoaxial cables or other cables. It also supports the channels in the bandwidth mode. IfGigabit Ethernet is, however, deployed to be the private bandwidth system with a bridge(switch) or a router as the center, it gives full play to the performance and the bandwidth.In the network structure, Gigabit Ethernet uses full duplex links that are private, causingthe length of the links to be sufficient for backbone applications in a building and campus.

GNE See gateway network element

Graphical UserInterface

A visual computer enviroment that represents programs, files, and options with graphicalimages, such as icons, menus, and dialog boxes, on the screen.

GTS See Generic traffic shaping

GUI See Graphical User Interface

H

HDB3 High Density Bipolar Code 3

HDLC See High level Data Link Control procedure

High level Data LinkControl procedure

A data link protocol from ISO for point-to-point communications over serial links.Derived from IBM's SDLC protocol, HDLC has been the basis for numerous protocolsincluding X.25, ISDN, T1, SS7, GSM, CDPD, PPP and others. Various subsets of HDLChave been developed under the name of Link Access Procedure (LAP).

hot standby A mechanism of ensuring device running security. The environment variables andstorage information of each running device are synchronized to the standby device. Whenthe faults occur on the running device, the standby device can take over the services inthe faulty device in automatic or manual way to ensure the normal running of the entiresystem.

HSM Hitless Switch Mode

hybrid radio The hybrid transmission of Native E1 and Native Ethernet signals. Hybrid radio supportsthe AM function.

I

ICMP See Internet Control Messages Protocol

IDU See indoor unit

IEC See International Electrotechnical Commission

IEEE See Institute of Electrical and Electronics Engineers

IETF The Internet Engineering Task Force

IF See intermediate frequency

IGMP See Internet Group Management Protocol




Issue 05 (2010-05-25)

IGMP snooping A multicast constraint mechanism running on a layer 2 device. This protocol managesand controls the multicast group by listening to and analyze the Internet GroupManagement Protocol (IGMP) packet between hosts and layer 3 devices. In this manner,the spread of the multicast data on layer 2 network can be prevented efficiently.

indoor unit The indoor unit of the split-structured radio equipment. It implements accessing,multiplexing/demultiplexing, and IF processing for services.

Institute of Electricaland ElectronicsEngineers

A society of engineering and electronics professionals based in the United States butboasting membership from numerous other countries. The IEEE focuses on electrical,electronics, computer engineering, and science-related matters.

intermediate frequency The transitional frequency between the frequencies of a modulated signal and an RFsignal.

intermediate frequency The transitional frequency between the frequencies of a modulated signal and an RFsignal.

Intermediate System toIntermediate System

A protocol used by network devices (routers) .IS-IS is a kind of Interior Gateway Protocol(IGP), used within the ASs. It is a link status protocol using Shortest Path First (SPF)algorithm to calculate the route.

InternationalElectrotechnicalCommission

The International Electrotechnical Commission (IEC) is an international and non-governmental standards organization dealing with electrical and electronical standards.

InternationalOrganization forStandardization

ISO (International Organization for Standardization) is the world's largest developer andpublisher of International Standards.

Internet ControlMessages Protocol

ICMP belongs to the TCP/IP protocol suite. It is used to send error and control messagesduring the transmission of IP-type data packets.

Internet GroupManagement Protocol

The protocol for managing the membership of Internet Protocol multicast groups amongthe TCP/IP protocols. It is used by IP hosts and adjacent multicast routers to establishand maintain multicast group memberships.

Internet Protocol The TCP/IP standard protocol that defines the IP packet as the unit of information sentacross an internet and provides the basis for connectionless, best-effort packet deliveryservice. IP includes the ICMP control and error message protocol as an integral part. Theentire protocol suite is often referred to as TCP/IP because TCP and IP are the twofundamental protocols. IP is standardized in RFC 791.

Internet ProtocolVersion 6

A update version of IPv4. It is also called IP Next Generation (IPng). The specificationsand standardizations provided by it are consistent with the Internet Engineering TaskForce (IETF).Internet Protocol Version 6 (IPv6) is also called. It is a new version of theInternet Protocol, designed as the successor to IPv4. The specifications andstandardizations provided by it are consistent with the Internet Engineering Task Force(IETF).The difference between IPv6 and IPv4 is that an IPv4 address has 32 bits whilean IPv6 address has 128 bits.

IP See Internet Protocol

IPv6 See Internet Protocol Version 6

IS-IS See Intermediate System to Intermediate System

ISO See International Organization for Standardization

ITU-T International Telecommunication Union - Telecommunication Standardization Sector



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IVL Independence VLAN learning

A.4 K-OThis section provides the terms starting with letters K to O.

L

LAG See link aggregation group

LAN See Local Area Network

LAPD Link Access Procedure on the D channel

LAPS Link Access Procedure-SDH

layer 2 switch A data forwarding method. In LAN, a network bridge or 802.3 Ethernet switch transmitsand distributes packet data based on the MAC address. Since the MAC address is thesecond layer of the OSI model, this data forwarding method is called layer 2 switch.

LB See Loopback

LCAS See Link Capacity Adjustment Scheme

LDPC Low-Density Parity Check code

link aggregation group An aggregation that allows one or more links to be aggregated together to form a linkaggregation group so that a MAC clientcan treat the link aggregation group as if it werea single link.

Link CapacityAdjustment Scheme

The Link Capacity Adjustment Scheme (LCAS) is designed to allow the dynamicprovisioning of bandwidth, using VCAT, to meet customer requirements.

LMSP Linear Multiplex Section Protection

Local Area Network A network formed by the computers and workstations within the coverage of a few squarekilometers or within a single building. It features high speed and low error rate. Ethernet,FDDI, and Token Ring are three technologies used to implement a LAN. Current LANsare generally based on switched Ethernet or Wi-Fi technology and running at 1,000 Mbit/s (that is, 1 Gbit/s).

Loopback A troubleshooting technique that returns a transmitted signal to its source so that thesignal or message can be analyzed for errors.

LPT Link State Path Through

M

MA See Maintenance Association

MAC See Medium Access Control

MADM Multi Add-Drop Multiplexer

MaintenanceAssociation

That portion of a Service Instance, preferably all of it or as much as possible, theconnectivity of which is maintained by CFM. It is also a full mesh of MaintenanceEntities.




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Maintenance Domain The Maintenance Domain (MD) refers to the network or the part of the network for whichconnectivity is managed by CFM. The devices in an MD are managed by a single ISP.

Maintenance Point Maintenance Point (MP) is one of either a MEP or a MIP.

ManagementInformation Base

A type of database used for managing the devices in a communications network. Itcomprises a collection of objects in a (virtual) database used to manage entities (such asrouters and switches) in a network.

Maximum TransferUnit

The MTU (Maximum Transmission Unit) is the size of the largest datagram that can besent over a network.

MBS Maximum Burst Size

MD See Maintenance Domain

MDI See Medium Dependent Interface

Mean Time To Repair The average time that a device will take to recover from a failure.

Medium AccessControl

A general reference to the low-level hardware protocols used to access a particularnetwork. The term MAC address is often used as a synonym for physical addresses.

Medium DependentInterface

The electrical and mechanical interface between the equipment and the mediatransmission.

MEP Maintenance End Point

MIB See Management Information Base

MP See Maintenance Point

MSP See multiplex section protection

MSTP See Multiple Spanning Tree Protocol

MTBF Mean Time Between Failure

MTTR See Mean Time To Repair

MTU See Maximum Transfer Unit

Multiple SpanningTree Protocol

Multiple spanning tree protocol. The MSTP can be used in a loop network. Using analgorithm, the MSTP blocks redundant paths so that the loop network can be trimmedas a tree network. In this case, the proliferation and endless cycling of packets is avoidedin the loop network.The protocol that introduces the mapping between VLANs andmultiple spanning trees. This solves the problem that data cannot be normally forwardedin a VLAN because in STP/RSTP, only one spanning tree corresponds to all the VLANs.

multiplex sectionprotection

A function, which is performed to provide capability for switching a signal between andincluding two multiplex section termination (MST) functions, from a "working" to a"protection" channel.

N

N+1 protection A radio link protection system composed of N working channels and one protectionchannel.

NE See Network Element

Network Element A network element (NE) contains both the hardware and the software running on it. OneNE is at least equipped with one system control board which manages and monitors theentire network element. The NE software runs on the system control board.



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network managementsystem

The network management system in charge of the operation, administration, andmaintenance of a network.

Network Service AccessPoint

A network address defined by ISO, through which entities on the network layer canaccess OSI network services.

NLP Normal Link Pulse

NMS See network management system

NNI Network-to-Network Interface or Network Node Interface

non-gateway networkelement

A network element whose communication with the NM application layer must betransferred by the gateway network element application layer.

non-GNE See non-gateway network element

NSAP See Network Service Access Point

O

OAM Operations, Administration and Maintenance

ODU See outdoor unit

Open Shortest PathFirst

A link-state, hierarchical interior gateway protocol (IGP) for network routing. Dijkstra'salgorithm is used to calculate the shortest path tree. It uses cost as its routing metric. Alink state database is constructed of the network topology which is identical on all routersin the area.

Open SystemsInterconnection

A standard or "reference model" (officially defined by the International Organization ofStandards (ISO)) for how messages should be transmitted between any two points in atelecommunication network. The reference model defines seven layers of functions thattake place at each end of a communication.

orderwire A channel that provides voice communication between operation engineers ormaintenance engineers of different stations.

OSI See Open Systems Interconnection

OSPF See Open Shortest Path First

outdoor unit The outdoor unit of the split-structured radio equipment. It implements frequencyconversion and amplification for RF signals.

A.5 P-TThis section provides the terms starting with letters P to T.

P

PDH See Plesiochronous Digital Hierarchy

Peak Information Rate Peak Information Rate . A traffic parameter, expressed in bit/s, whose value should benot less than the committed information rate.

PIM-DM Protocol Independent Multicast-Dense Mode

PIM-SM See Protocol Independent Multicast-Sparse Mode




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PIR See Peak Information Rate

Plesiochronous DigitalHierarchy

A multiplexing scheme of bit stuffing and byte interleaving. It multiplexes the minimumrate 64 kit/s into the 2 Mbit/s, 34 Mbit/s, 140 Mbit/s, and 565 Mbit/s rates.

Point-to-Point Protocol A protocol on the data link layer, provides point-to-point transmission and encapsulatesdata packets on the network layer. It is located in layer 2 of the IP protocol stack.

polarization A kind of electromagnetic wave, the direction of whose electric field vector is fixed orrotates regularly. Specifically, if the electric field vector of the electromagnetic wave isperpendicular to the plane of horizon, this electromagnetic wave is called verticallypolarized wave; if the electric field vector of the electromagnetic wave is parallel to theplane of horizon, this electromagnetic wave is called horizontal polarized wave; if thetip of the electric field vector, at a fixed point in space, describes a circle, thiselectromagnetic wave is called circularly polarized wave.

PPP See Point-to-Point Protocol

PRBS Pseudo-Random Binary Sequence

Protocol IndependentMulticast-Sparse Mode

A protocol for efficiently routing to multicast groups that may span wide-area (and inter-domain) internets. This protocol is named protocol independent because it is notdependent on any particular unicast routing protocol for topology discovery, and sparse-mode because it is suitable for groups where a very low percentage of the nodes (andtheir routers) will subscribe to the multicast session. Unlike earlier dense-mode multicastrouting protocols such as DVMRP and PIM-DM which flooded packets everywhere andthen pruned off branches where there were no receivers, PIM-SM explicitly constructsa tree from each sender to the receivers in the multicast group. Multicast packets fromthe sender then follow this tree.

Q

QoS See Quality of Service

QPSK See Quadrature Phase Shift Keying

Quadrature Phase ShiftKeying

Quadrature Phase Shift Keying (QPSK) is a modulation method of data transmissionthrough the conversion or modulation and the phase determination of the referencesignals (carrier). It is also called the fourth period or 4-phase PSK or 4-PSK. QPSK usesfour dots in the star diagram. The four dots are evenly distributed on a circle. On thesephases, each QPSK character can perform two-bit coding and display the codes in Graycode on graph with the minimum BER.

Quality of Service Quality of Service, which determines the satisfaction of a subscriber for a service. QoSis influenced by the following factors applicable to all services: service operability,service accessibility, service maintainability, and service integrity.

R

Radio Freqency A type of electric current in the wireless network using AC antennas to create anelectromagnetic field. It is the abbreviation of high-frequency AC electromagnetic wave.The AC with the frequency lower than 1 kHz is called low-frequency current. The ACwith frequency higher than 10 kHz is called high-frequency current. RF can be classifiedinto such high-frequency current.

Radio NetworkController

A device used in the RNS to control the usage and integrity of radio resources.



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Rapid Spanning TreeProtocol

An evolution of the Spanning Tree Protocol, providing for faster spanning treeconvergence after a topology change. The RSTP protocol is backward compatible withthe STP protocol.

Received signal level The signal level at a receiver input terminal.

Received SignalStrength Indicator

The received wide band power, including thermal noise and noise generated in thereceiver, within the bandwidth defined by the receiver pulse shaping filter, for TDDwithin a specified timeslot. The reference point for the measurement shall be the antenna

RF See Radio Freqency

RFC Request For Comment

RIP See Routing Information Protocol

RMON Remote Monitoring

RNC See Radio Network Controller

Routing InformationProtocol

Routing Information Protocol: A simple routing protocol that is part of the TCP/IPprotocol suite. It determines a route based on the smallest hop count between source anddestination. RIP is a distance vector protocol that routinely broadcasts routinginformation to its neighboring routers and is known to waste bandwidth.

RS Reed-Solomon encoding

RSL Received Signal Level

RSSI See Received Signal Strength Indicator

RSTP See Rapid Spanning Tree Protocol

RTN Radio Transmission Node

S

SD See space diversity

SDH See Synchronous Digital Hierarchy

SFP See Small Form-Factor Pluggable

Signal Noise Ratio The SNR or S/N (Signal to Noise Ratio) of the amplitude of the desired signal to theamplitude of noise signals at a given point in time. SNR is expressed as 10 times thelogarithm of the power ratio and is usually expressed in dB (Decibel).

Simple NetworkManagement Protocol

A network management protocol of TCP/IP. It enables remote users to view and modifythe management information of a network element. This protocol ensures thetransmission of management information between any two points. The pollingmechanism is adopted to provide basic function sets. According to SNMP, agents, whichcan be hardware as well as software, can monitor the activities of various devices on thenetwork and report these activities to the network console workstation. Controlinformation about each device is maintained by a management information block.

Small Form-FactorPluggable

A specification for a new generation of optical modular transceivers.

SNC See SubNetwork Connection

SNCP See SubNetwork Connection Protection

SNMP See Simple Network Management Protocol




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SNR See Signal Noise Ratio

SP Strict Priority

space diversity A diversity scheme that enables two or more antennas separated by a specific distanceto transmit/receive the same signal and selection is then performed between the twosignals to ease the impact of fading. Currently, only receive SD is used.

Spanning Tree Protocol Spanning Tree Protocol. STP is a protocol that is used in the LAN to remove the loop.STP applies to the redundant network to block some undesirable redundant paths throughcertain algorithms and prune a loop network into a loop-free tree network.

SSM See Synchronization Status Message

STM See synchronous transport module

STM-1 SDH Transport Module -1

STM-1e STM-1 Electrical Interface

STM-1o STM-1 Optical Interface

STM-N SDH Transport Module -N

STP See Spanning Tree Protocol

sub-network Sub-network is the logical entity in the transmission network and comprises a group ofnetwork management objects. The network that consists of a group of interconnected orcorrelated NEs, according to different functions. For example, protection subnet, clocksubnet and so on. A sub-network can contain NEs and other sub-networks. Generally, asub-network is used to contain the equipments which are located in adjacent regions andclosely related with one another, and it is indicated with a sub-network icon on atopological view. The U2000 supports multilevels of sub-networks. A sub-networkplanning can better the organization of a network view. On the one hand, the view spacecan be saved, on the other hand, it helps the network management personnel focus onthe equipments under their management.

SubNetworkConnection

A "transport entity" that transfers information across a subnetwork, it is formed by theassociation of "ports" on the boundary of the subnetwork.

SubNetworkConnection Protection

A working subnetwork connection is replaced by a protection subnetwork connection ifthe working subnetwork connection fails, or if its performance falls below a requiredlevel.

SVL Shared VLAN Learning

Synchronization StatusMessage

A message that is used to transmit the quality levels of timing signals on the synchronoustiming link. Through this message, the node clocks of the SDH network and thesynchronization network can aquire upper stream clock information, and the two performoperations on the corresponding clocks, such as tracing, switchover, or converting hold),and then forward the synchronization information of this node to down stream.

Synchronous DigitalHierarchy

SDH is a transmission scheme that follows ITU-T G.707, G.708, and G.709. It definesthe transmission features of digital signals such as frame structure, multiplexing mode,transmission rate level, and interface code. SDH is an important part of ISDN and B-ISDN. It interleaves the bytes of low-speed signals to multiplex the signals to high-speedcounterparts, and the line coding of scrambling is only used only for signals. SDH issuitable for the fiber communication system with high speed and a large capacity sinceit uses synchronous multiplexing and flexible mapping structure.



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synchronous transportmodule

An STM is the information structure used to support section layer connections in theSDH. It consists of information payload and Section Overhead (SOH) information fieldsorganized in a block frame structure which repeats every 125 . The information is suitablyconditioned for serial transmission on the selected media at a rate which is synchronizedto the network. A basic STM is defined at 155 520 kbit/s. This is termed STM-1. Highercapacity STMs are formed at rates equivalent to N times this basic rate. STM capacitiesfor N = 4, N = 16 and N = 64 are defined; higher values are under consideration.

T

TCI Tag Control Information

TCP See TransmissionControl Protocol

TDM See Time Division Multiplexing

TelecommunicationManagement Network

The Telecommunications Management Network is a protocol model defined by ITU-Tfor managing open systems in a communications network.An architecture formanagement, including planning, provisioning, installation, maintenance, operation andadministration of telecommunications equipment, networks and services.

Time DivisionMultiplexing

It is a multiplexing technology. TDM divides the sampling cycle of a channel into timeslots (TSn, n=0, 1, 2, 3…… ), and the sampling value codes of multiple signals engrosstime slots in a certain order, forming multiple multiplexing digital signals to betransmitted over one channel.

TMN See Telecommunication Management Network

trail A type of transport entity, mainly engaged in transferring signals from the input of thetrail source to the output of the trail sink, and monitoring the integrality of the transferredsignals.

TransmissionControlProtocol

The protocol within TCP/IP that governs the breakup of data messages into packets tobe sent via IP (Internet Protocol), and the reassembly and verification of the completemessages from packets received by IP. A connection-oriented, reliable protocol (reliablein the sense of ensuring error-free delivery), TCP corresponds to the transport layer inthe ISO/OSI reference model.

TU Tributary Unit

A.6 U-ZThis section provides the terms starting with letters U to Z.

U

UDP See User Datagram Protocol

UNI See User Network Interface




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User DatagramProtocol

A TCP/IP standard protocol that allows an application program on one device to send adatagram to an application program on another. User Datagram Protocol (UDP) uses IPto deliver datagrams. UDP provides application programs with the unreliableconnectionless packet delivery service. Thus, UDP messages can be lost, duplicated,delayed, or delivered out of order.UDP is used to try to transmit the data packet, that is,the destination device does not actively confirm whether the correct data packet isreceived.

User Network Interface A type of ATM Forum specification that defines an interoperability standard for theinterface between ATM-based products (a router or an ATM switch) located in a privatenetwork and the ATM switches located within the public carrier networks. Also used todescribe similar connections in Frame Relay networks.

V

VC See Virtual Container

VC-12 Virtual Container -12



VCG See virtual concatenation group

VCTRUNK A virtual concatenation group applied in data service mapping, also called the internalport of a data service processing board

virtual concatenationgroup

A group of co-located member trail termination functions that are connected to the samevirtual concatenation link

Virtual Container A Virtual Container is the information structure used to support path layer connectionsin the SDH. It consists of information payload and path Overhead (POH) informationfields organized in a block frame structure which repeats every 125 or 500 μs.

Virtual Local AreaNetwork

A logical grouping of two or more nodes which are not necessarily on the same physicalnetwork segment but which share the same IP network number. This is often associatedwith switched Ethernet.

Virtual PrivateNetwork

The extension of a private network that encompasses encapsulated, encrypted, andauthenticated links across shared or public networks. VPN connections can provideremote access and routed connections to private networks over the Internet.

VLAN See Virtual Local Area Network

Voice over IP An IP telephony term for a set of facilities used to manage the delivery of voiceinformation over the Internet. VoIP involves sending voice information in a digital formin discrete packets rather than by using the traditional circuit-committed protocols of thepublic switched telephone network (PSTN).

VoIP See Voice over IP

VPN See Virtual Private Network

W

Wait to Restore Time A period of time that must elapse before a - from a fault recovered - trail/connection canbe used again to transport the normal traffic signal and/or to select the normal trafficsignal from.



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WAN See Wide Area Network

Web LCT The local maintenance terminal of a transport network, which is located on the NEmanagement layer of the transport network

Wide Area Network A network composed of computers which are far away from each other which arephysically connected through specific protocols. WAN covers a broad area, such as aprovince, a state or even a country.

WRR Weighted Round Robin

WTR See Wait to Restore Time

X

XPD Cross-Polarization Discrimination

XPIC See cross polarization interference cancellation




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IDU 605 Commissioning Guide(V100R003_05)

Documents

Transcript of IDU 605 Commissioning Guide(V100R003_05)