pico repeater user manual

8/12/2019 pico repeater user manual

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SGR-R3B1C-100mw/S/V PICO Repeater User Manual

G/D/W Wireless Pico Repeater

SGR-R3B1C-100mw/S/V

User manual

Copyright 2006-2010 Shenzhen GrenTech Co., Ltd. All rights reserved.

In accordance with the Copyright Law of the People's Republic of China and Universal Copyright Convention, Shenzhen GrenTech Co., Ltd. holds the copyright of this

document, and reserves all rights thereof. W ithout written permission from Shenzhen GrenTech Co., Ltd., no part of this document may be used, reproduced,

transmitted, or otherwise by any party in any means.


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Content

1 GENERAL INFORMATION............................................................................................................................................5

2 EQUIPMENT DESCRIPTION ........................................................................................................................................7

2.1 DEVICE FUNCTIONAL BLOCK DIAGRAM ........................................................................................................................7

2.2 TECHNICALSPECIFICATIONS ........................................................................................................................................7

3 INSTALLATION ...............................................................................................................................................................9

3.1 WARNINGS AND ALERTS ......................................................................................................................................................9

3.2. SITE CONSIDERATIONS......................................................................................................................................................10

3.3 INSTALLATION LOCATION ..................................................................................................................................................10

3.4 ISOLATION.........................................................................................................................................................................10

3.5 ENVIRONMENTAL .............................................................................................................................................................. 11

3.6 POWERING ........................................................................................................................................................................ 11

3.6.1 Grounding requirement ............................................................................................................................................. 11

3.6.2 Manual handling....................................................................................................................................................... 11

3.7 INSTALLATION PROCEDURES ............................................................................................................................................. 11

3.7.1 Goods inspection....................................................................................................................................................... 11

3.7.2 Tools ......................................................................................................................................................................12

3.7.3 Preparation............................................................................................................................................................12

3.7.4 Installation steps: ..................................................................................................................................................12

3.8 TROUBLE SHOOTING ...................................................................................................................................................16

4 SYSTEM OVERVIEW.........................................................................................................................................................18

4.1 SYSTEMCOMPOSITION

...............................................................................................................................................184.1.1 NMS Software ........................................................................................................................................................18

4.1.2 Communication Channel .......................................................................................................................................18

4.1.3 Repeater ................................................................................................................................................................18

4.2 SYSTEM INSTALLATION AND CONFIGURATION ............................................................................................................19

4.2.1 System Requirement...............................................................................................................................................19

4.2.2 Software Environment ...........................................................................................................................................19

4.2.3 Hardware Environment .........................................................................................................................................19

4.3 SYSTEM STRUCTURE AND FUNCTIONALITY ................................................................................................................19

4.3.1 Functional Structure ..............................................................................................................................................19

4.3.2 System Login .........................................................................................................................................................19

4.3.3 Area Site Management...........................................................................................................................................20

4.4 DEVICE MANAGEMENT ...............................................................................................................................................21

4.4.1 Device list ..............................................................................................................................................................22

4.5 CONNECTION MONITORING UNIT AND CONFIGURATION ............................................................................................24

4.5.1 Connection Monitoring Unit .................................................................................................................................24

4.5.2 Site Configure ........................................................................................................................................................24

4.5.3 Setting theparameters ...........................................................................................................................................25


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5 DESCRIPTION OF COMMON ALARM PARAMETERS.........................................................................................28

5.1 COMMON ALARMS .....................................................................................................................................................28


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Safety Warning

Users must follow the below principles

1. Repeater should follow system requirement of communication equipment, assure good

groundings and lightning protection.

2. The power supply voltage of repeater should meet the standards of security requirement;

any repeater-operator can operate only after cutting power in advance. Only the

professional can operate electrified.

3. Do not dismantle machine, maintain or displace accessories by yourself, because in thisway, the equipment may be damaged or even get an electric shock.

4. Do not open the repeater; touch the module of repeater, even not to open the cover of

module to touch the electronic component, the components will be damaged due toelectrostatic

5. Please keep away from heating-equipment, because the repeater will dissipate heat when

working. And do not cover repeater with anything that influences heat-dissipation.

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1 GENERAL INFORMATION

Grentech G/D/W wireless Pico Repeater is designed for GSM900 /DC1800/WCDMA2100

System, the repeater acts as the back-end of the indoor distribution system. Based on a series of

advanced technologies, the G/D/W wireless pico repeaters developed by Grentech have the following

characteristics:

State-of-the-art microwave CAD design, which ensures the stability and reliability of the product

Support GSM900,DCS 1800 and WCDMA 2000 network,Customers can select efficient GSM900

and DCS1800 .working band with the select passive RF filter directly

Modular design, making the product highly stable and reliable and easy to maintain.

High-performance switch power supply, ensuring stable operation of the equipment

Using the common RF cables to guarantee the even distribution of indoor signals and minimize

the construction influence and user investment

The system is steady, convenient for installation and maintenance

It is used in buildings, large shopping places, large underground parking garage, exhibition

centers and workshop buildings, resulting in well distributed signal coverage in those places.

Figure: application demonstration 1


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The following pictures show the enclosure of equipment


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Device framework dimension:

lengthunit: mm widthunit: mm Highunit: mm weight approx.Unit: Kg

420 300 100 9

2 EQUIPMENT DESCRIPTION

2.1 DEVICE FUNCTIONAL BLOCK DIAGRAM

Power Amplif ier (PA): The PA is used to amplify the demand carriers effectively.

Duplexer (DPX): The DPX is located towards the DT and MT connections, used to combine/divide

the uplink and downlink signals.

Low Noise Amplifier (LNA): One Low Noise Amplifier (LNA) is installed in each UL/DL branch.

Power Supply Unit (PSU): Power supply adapter (220V/AC).

2.2 TECHNICAL SPECIFICATIONS

RF Specifications

Item GSM 900 DCS 1800 WCDMA

RF band(MHz))UL 906.7-915 1730-1750 1920-1935

DL 951.7-960 1825-1845 2110-2125

Output power UL 15dBm, DL 20dBm

Max gain UL 60dB ; DL 70dB


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AGC 20dB

SAW filter Yes

Max InputGSM DCS WCDMA

0dBm 0dBm 8dBm

Outband gain

400kHz

600kHz1MHz

5MHz

Gain flatness 6dB 6dB 6dB

Noise figure 7dB

V.S.W.R 2.0

Frequency stability 0.01ppm

Gain control 31dB in step of 1dB

Group delay 1.5s

Accuracy of modulation

in WCDMA

12.5%

Intermodulation

products

9KHz~1GHz -36dBm @ 3KHz

1GHz~12.75GHz -30dBm @ 3KHz

Spurious

emission

9KHz~1GHz -36dBm @ 3KHz

1GHz~12.75GHz

-30dBm @ 3KHz

Power, Mechanical & Structural Specif ications

Input voltage range 110V-250V/45Hz-55Hz.

Outline dimension 420*300*100mm

Weight 9Kg

Housing material Metal

Impedance 50

Connector type N-F

Cooling mode Convection

EnvironmentalConditions

Operating temperature -10C ~ 55C

Storage temperature -45C ~ +85C

RF Specifications

Relative humidity 5% ~ 95%

Atmospheric pressure 70kPa ~ 106kPa

Operating grounding IP53

Noise 51dBA

Odor Free of abnormal odor or harmful gasesMBTF > 50000 hours

Monitor Function

Local monitor PC via 232 interface or Monitor unit

Remote monitor (NMS) Via wireless modem

Consumption power 20W

58dB

40dB

30dB

22dB


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Monitor parameter

Power failure alarm, Power module status alarm,

Door control alarm, Failure of the uplink

low-noise amplifier, Failure of the downlink low-noise amplifier,

Overpower of the uplink power amplifier, Overpower of the

downlink power amplifier, Over-temperature of the uplink

power amplifier, Over-temperature of the downlink power

amplifier, SWR alarm of the uplink power amplifier, SWR alarm

of the downlink power amplifier

3 INSTALLATION

3.1 WARNINGS AND ALERTS

Radio Frequency energies

There may be situations, particularly the workplace environments near high-powered RF sources,

where recommended limits for safe exposure of human beings to RF energy could be exceeded. In

such cases, restrictive measures or actions may be necessary to ensure the safe use of RF energy.

High voltage

The equipment has been designed and constructed as to prevent as far as reasonably practicable

danger. Any activity, such as installation, operation and maintenance, on or near the equipment must

be as far as reasonably free from danger.

Where there is a risk of damage to electrical systems due to adverse weather, extreme temperatures,

wet, corrosive or dirty conditions, flammable or explosive atmosphere, then the system must be

suitably installed to avoid such a danger.

Protective Earthing

Equipment provided for the purpose of protecting individuals from electrical risk must be properly used

and maintained.

Handling Precautions

Precautions should be taken in equipment handling activities including lifting, lowering, pushing, pulling,

carrying, moving or holding, or the activities to restrain an object, animal or a person from the

equipment, or the activities when extra efforts are needed such as pulling a lever, or operating power

tools.


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ESD

Take necessary precautions when handling ESD-sensitive devices. Assume that all solid-state electronic

devices are ESD-sensitive. Do use a grounded wriststrap or the like while working with ESD-sensitive

devices. Transport, store, and handle ESD-sensitive devices in static-safe environments.

3.2. SITE CONSIDERATIONS

The repeater is designed to be used for indoor coverage, so temporary protection should be taken

whenthe equipment enclosure is opened for installation or maintenance. The equipment must not be

opened for installation or maintenance in bad environment (e.g. gale, storm, extreme temperatures and

high humidity).

3.3 INSTALLATION LOCATION

Mounting surface shall be suitable to support the equipment weight: for this equipment, the weight is about

9kg and the necessary installation space is about 420*300*100mm. The downlink maximum input signal

power at Repeaters donor port should be not more than - 25dBm.

3.4 ISOLATION

Commonly, to prevent repeater from oscillation, the isolation between donor antenna and service

antenna should Max gain + 15dB. For the GSM900 pico repeater, onsite isolation between donor

antenna and service antenna should be not less than 75dB.

Isolation is not usually a problem when a directional antenna is used for the Donor and/or the

Coverage antenna. Of course, pointing either antenna at the other would cause a problem and should

not be done. In addition, since directional antennas have a narrow pattern, compared to an

omni-directional antenna, it is unlikely they will overlap when the directional Donor antenna is high up

on the building and the Coverage antenna is low inside the building (in most cases).

Lastly, isolation can be eliminated by the same things that cause reception problems in the first place.

Those things being concrete, steel, brick, aluminum, etc. Placing these materials between the

antennas prevents their signal patterns from overlapping. For example, your building has a metal roof

and you install the Donor antenna above the roof and the Coverage antenna below the roof. The

antennas are effectively isolated.


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3.5 ENVIRONMENTAL

Humidity can affect the reliability of the equipment. It is recommended to install the equipment in the

location having stable temperature and un-restricted air-flow. This equipment is designed to operate

within the air temperature range of 0Cto +50Cwhen the relative humidity 95%. The barrier device

should be installed to protect the equipment from sunlight exposure.

3.6 POWERING

The power supply adapter provides power to repeater. It operates at 110V-250V/45Hz-55Hz.

3.6.1 Grounding requirement

Verify the equipment has been well grounded, this includes antennas (especially the donor antennas)

and all cables connected. Ensure lightning arrester protection for the antennas is properly grounded.

3.6.2 Manual handling

During transportation and installation, take necessary handling precautions to avoid potential physical

injury to the installation related personnel or damages to the equipment.

3.7 INSTALLATION PROCEDURES

3.7.1 Goods inspection

Verify the number of packages received according to the packing list.

Check all packages for external damage; report any external damage to the shipping carrier. If

there is damage, a shipping agent should be present before unpacking and inspecting the

contents because damage caused during transit is the responsibility of the agent.

Open and check each package against the packing list. If any items are missing, please contact

Grentech.

Do not remove items from antistatic packing until installation. If damage is discovered at the time

of installation, please contact the shipping agent.


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3.7.2 Tools

Refer to the following table for a full list of the recommended tools required for installation.

Table Installation tools and materials for repeater

Tools

Adjustable Spanner 24mm Socket spanner s=6 Phillips screwdriver

Screwdriver Diagonal pliers Nipper pliers

Cable prep tool(for install the connectors) Scissors Crimping tool

Cutter Allen Key

Installation materials

3-meter-long waterproof insulation tape Installing support and fittings Copper lug

Cable ties

In addition, the following are required for the system grouping:

Lightning arrestor Grounding rod (angle steel) Grounding flat steel

Grounding downlead

3.7.3 Preparation

Repeater:

Weight support capability of mounting surface or pole : 9kg

Power input 220V/AC

Terminate unused antenna ports with a 50 ohm terminator.

Earthing point/Safety ground within about 3m.

Antenna:

Antenna installation is covered by their respective manuals. Take normal precautions when

preparing and handling feeder cables to ensure they are not damaged.

3.7.4 Installation steps:

Step 1

Start by taking your Spectrum Master up to the roof or other location outside to find where the signal is

strongest.


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Step 2

Temporarily mount the Donor (outside) antenna in that location. You may need to adjust and move the

antenna later.

The direction of donor antenna to BTS selected. Like the below mention:

Step 3

Run coaxial cable into the building to a convenient loaction (attic, etc.) where you can also get

standard 110V-250V/45Hz-55Hz power for the PICO Repeater.

Step 4

Mount your coverage (inside) antenna in a productive location. You may need to adjust or move the

antenna later.

There are a couple types of coverage antennas used in our repeater systems. Each one has a specific

purpose.


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Step 5

Place the repeater in that location and connect the coaxial cable to the Donor Side of the repeater and

the donor antenna.

1. Drill holes on the installing support. Then fix the repeater to the wall using expansion bolts.

2. Place the repeater on the wall properly.

3. Tighten the bolts at the relevant places to secure the enclosure to the repeater.

4-M18 expansion bolt

50-70mm long

With certain number

of flat and spring washers

WallRepeater

LOC

AC

Alarm

BTS Remote PWR

Donor antenna cable BSDonor port Service antenna cable ( Remote ) Service port 220VAC import AC

Local monitoring interface LOC

Power indicator PWR ALC Alarm indicator Alarm

Caution: Risk of explosion if power is replaced by an incorrect type.


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Step 6

1. Connect to donor antenna and service antenna.

2. Connect coaxial cable between the coverage antenna and the repeater output port. And also

lightning arrestor must be used to between coaxial cable and the repeater output port.

3. Connect the power line to repeater, and can control repeater power supply by 10A power brake.

Step 7

Power up the system and check for signal inside the building. If needed, tune system by moving and or

pointing the Donor and Coverage antennas until they get the most signal possible.

Step 8

Secure all antennas and cables, securely mount the repeater and clean up the installation.

Step 9

Ground connection: To ensure safe operation of the product, a ground (earth) connection is required.

For single phase AC power source, the product must be grounded by connecting the earthwireofthe

power cord to the ground terminal of the AC supply. For operating this product with DC power system

(such as rectifiers), the product should not be connected to power systems that switch open the return

lead because the return lead could function as the ground (earth) connection for the equipment. In

general, do not connect the supply before establishing an adequate ground (earth) connection.


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3.8 TROUBLE SHOOTING

Failure

phenomenaCause analysis Solution

1.No signal in

coverage area

1.Repeater may not work

2.Abnormal function

3.Failure in antenna and feeder

system

4.Failure in signal source base

station

1.Check whether the power system functions is

ok2.Failure in downlink unit, replace the unit or

repeater

3.Check the stationary wave of antenna and

feeder system, and the direction of the

antenna

4.Check whether signal source base station

works well

2.Good downlink

signal with poor

communication

quality

1.Failure in uplink channel

2.Reverse interference in

repeater coverage area

3.The signal is not pure

4.Unqualified uplink and downlink

isolation

5.Failure in signal source base

station(small possibility)

6.Imbalance between uplink and

downlink

1.Test uplink module hierarchically, to see

where the problem is and replace it

2.Check whether theresinterference

3.Analyze in the aspect of network whether the

received signal is pure; whether it satisfies

signal receiving requirements

4.Add an isolation network or decrease system

gain in terms that the angle of donor repeat

antenna does not affect coverage area

5.Consult the operator whether the signal

source base station works well

6.Adjust uplink gain to balance uplink and

downlink

3.Poor signal in

coverage area

1.Failure in donor antenna and

feeder system

2.Inside module of the repeater is

not stable

3.Slight oscillation of the repeater

4.Inappropriate handoff under

MS special mode

5.Check whether the donor

antenna is stable

1.Check whether antenna angle, pitch angle,

stationary wave of antenna and feeder system

function well

2.Replace the unstable equipment

3.Increase isolation(between donor antenna

and service antenna)

4.Check MS handoff, handoff cause and work

out solutions

5. Test coupling base station signal by

frequency spectrum. If the signal is not stable

and pure, direct the donor antenna to the donorbase station or replace the base station

4.High drop-off

rate, call

interruption and

signal call

1.Repeater performance

weakens, and power decreases

2.Probably oscillation in

coverage area

3.Imbalance between uplink and

downlink

1.Check the function of the repeater and

replace it

2.Check out the interference and eliminate it

3.Readjust uplink and downlink gain of the

repeater

4.Increase isolation between uplink and


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4.Insufficient isolation of the

equipment

5.Inappropriate parameter setting

of the BTS

6.No primary pilot

downlink isolation

5.Check whether the parameters of selection

and handoff of the repeater is qualified

6.Adjust donor antenna, or replace signal

source base station or optimize partly the

network

5.Repeater

coverage area

decreases

1.Downlink power decreases

2.High VSWR of antenna and

feeder system

3.Uplink interference in repeater

overage area

4.Donor signal of the repeater

weakens

1.Adjust downlink power

2.Check VSWR of the repeater and eliminate it

3.Check the interference source and eliminate it

6.MS access time

is too long incoverage area

1. Imbalance between uplink and

downlink

2.Interference of reverse link3.Isolation difference between

uplink and downlink

1.Adjust uplink and downlink gain

2.Check out the interference source

3.Increase uplink and downlink isolation,secondary isolation with isolator or filter

7.Frequent

handoff in

coverage area

1.Repeater antenna angle is not

well adjusted

2.Repeater signal source is not

well selected

3.Adjust the coverage mode of

repeater surrounding base

stations

1.Adjust the angle of the antenna

2.Replace with high gain antenna

3.Adjust coverage mode of surrounding base

stations

8.Call failure in

donor base

station coverage

area

1.Serious oscillation of the

repeater

2.Failure in the base station

1.Set appropriate gain and increase isolation

2.Contact operator to solve the problem of base

station

9.Stationary wave

alarm

Probably the antenna and feeder

system or the duplexer is in

failure

The biggest problem is duplexer. Test the uplink

and downlink of the duplexer by frequency

spectrum, and see whether the attenuation is

too big.


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4 SYSTEM OVERVIEW

The SimpleNMS is the simplified NMS developed on the basis of the China Mobile test tool at the

request of the International Marketing Division and the related personnel from the MonitoringDepartment and Test Department. Compared with the integrated NMS, this simplified version offers

less functions, with only the major functions retained, for example, NE maintenance and device

monitoring.

This software is easy to use and install, and does not have any problems in intellectual property rights.

This software does not use any third-party software, for example, electronic map and Sql Server

database, and so is a kind of greensoftware,which is highly flexible in marketing.

4.1 SYSTEM COMPOSITION

System Structure Diagram

As the small-scale monitoring software based on the desktop database, the SimpleNMS can monitor

the units that comply with the protocols of China Mobile and China Unicom and others.

4.1.1 NMS Software

The NMS software consists of the main program, auxiliary tool, and database, of which the main

program operates with the sites. The operated data are stored in the database.

4.1.2 Communication Channel

All repeaters in the system can communicate with the NMS via direct cable connection, GSM or CDMA

short messages.

4.1.3 Repeater

A set of device may consist of various devices and systems. The device in this system means all the

repeaters that are connected to the NMS.


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4.2 SYSTEM INSTALLATION AND CONFIGURATION

4.2.1 System Requirement

4.2.2 Software Environment

Operating system: Windows2000/XP and above

4.2.3 Hardware Environment

CPU primary frequency: above 800M

Memory: about 128M

Other devices: motherboard with serial ports, wirelessGSM/CDMAMODEM

4.3 SYSTEM STRUCTURE AND FUNCTIONALITY

4.3.1 Functional StructureThe Simple NMS implements the following functions: system login, device maintenance, device

monitoring, communication method management, multiple-protocol access, and data query.

4.3.2 System Login

The system provides two login modes: common login and automatic login.

4.3.2.1 Common Login

For common login, you should enter [User Name] and [Password], and click [OK] or press Enter to

access the system main interface.

The first time you use this system, log in to the system by using the default initial user name and

password: sa for User Name and 111111 for Password.

To exit login, click [Cancel] or press Esc.

4.3.2.2 Automatic Login

At common login, if you select [Save Password] after you enter [User Name] and [Password] and click

[Ok] or press Entertolog in to the system, you enable automatic login. Next time you only need to run

the software to access the main interface, without needing to input the user name and password.


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4.3.2.3 Changing password

To change the password, select [system] > [Change PassWord] or click the icon on the toolbar.

The Change Password dialog box appears:

After you enter [Original PassWord], [New PassWord] and [Confirm PassWord], click [OK] or press

Entertochange the password.

To cancel the change of password, click [Cancel] or press Esc.

4.3.3 Area Site Management

The appearance of site management is a node tree, which shows the areas under the NM center and

the sites in each area. The functions provided include adding, deleting and modifying areas under the

NM center and adding, deleting, and modifying sites in each area. The site tree is shown as below:

4.3.3.1 Adding area site

Adding Area

Right-click the [RPNMS] node on the site tree and select [Add Area] from the pop-up menu:

This allows you to add the area-level node with the default name of [New Node I] (I=2, 3, 4 .).

You can also edit the node at the same time by entering a new area name. If the area data field

entered meets the requirement, the new area information will take effect.


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Note: The node name should have a length of no more than 40 characters and should be unique.

Adding Site

Right-click an area-level node on the site tree and select [Add Site] from the pop-up menu. This

allows you to add the site-level node with the default name of [New Node I] (I=2, 3, 4 .). You

can also edit the node at the same time by entering a new site name. If the area data field

entered meets the requirement, the new site information will take effect.

Note: The node name should have a length of no more than 40 characters and should be unique.

4.3.3.2 Modifying area site

Right-click the node you want to modify on the node tree and select [Edit NMC]/ [Edit Area]/ [Edit Site]

from the pop-up menu. The node name in the node name information box becomes editable and you

can modify it to the desired name.Note: The node name should have a length of no more than 40 characters and should be unique.

4.3.3.3 Deleting area site

Right-click the node you want to delete on the node tree and select [Delete NMC]/ [Delete Area]/

[Delete Site] from the pop-up menu. The following dialog box appears.

Click [OK] to confirm.

Note:

The NM center node cannot be deleted.

If there is one or more sites in the area, the Area has sites, can not be

deleted!message appears. You should first delete all the sites before you

can delete the area node.

If there is one or more devices at the site, the

Sitehas Devices, can not be

deleted!messageappears. You should first delete all the devices before you

can delete the site.

4.4 DEVICE MANAGEMENT

Device management allows you to operate with the basic information of the devices, for example,

adding, deleting, modifying, and querying devices and list of devices.


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4.4.1 Device lis t

The device list shows the major information fields of the devices under the NM center, areas, or sites.

The information on this list corresponds to the information of the current node on the site tree. When

you select a node on the node tree, all the information on the device list is updated.

At the same time, you can dynamically load the information fields of the device as needed:

Right-click on the device list and check or uncheck the desired fields.

4.4.1.1 Adding Device

Select a site node on the node tree, right-click on it and select [Add Device] from the pop-up menu or

click [Add] on the device information box or press ALT+A.Then enter DeviceName, Device Address,

Reaper ID, Master or Slaver, Device Codeinthe device information box, and select the required items

such as ProtocolTypeandother basic information. Click [Save] or press ALT+Stosave the device

data. If you have entered correct data in the fields of the device, the system will show the

message. The new device information takes effect and is

shown on the device list.

To cancel the addition of the device, click [Cancel].


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Note: The [Device Name] should be unique. The [Reaper ID] is the unique ID for the repeater, within

the range of 0-31, and also must be unique. The [Device Address] is the region or area where the

device is installed, and should be filled in as accurate as possible for future data query. The [Device

Code] does not need to be entered. If the device is Master and there is no Slaver, the value will be 255,

and if the device is Master and there is a Slaver, the value will be 0. If the device is Slaver, the value

will be 1~254. The [Device State] indicates the state of the device, which may be normal, alarm, or not

deployed.

4.4.1.2 Modifying device

Select the device to modify from the Device List and click [Modify] in the device information box or

press ALT+M. Now, the information in the device information box becomes editable, and you can

modify the needed fields.

Click [Save] or pressALT+S

to save the site. If the

message appears, the device is modified successfully. If the data entered do not meet the conditions,

the system indicates that you cannot save them and ask you to enter them again.

To cancel the modification of the device, click [Cancel].

4.4.1.3 Deleting device

Right-click the device you want to delete on the Device List and click [Delete] in the device information

box or press ALT+D.The following dialog box appears.

If you are sure to permanently delete the device and all its related history data (remote sensing, remote

control, alarm, and system log), click [OK] or press Enter. After the deletion is completed, the

message appears, indicating successful deletion. At the same


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time, the device disappears from the device list.

To cancel the deletion, click [Cancel] or press Esc.

4.5 CONNECTION MONITORING UNIT AND CONFIGURATION

4.5.1 Connection Monitoring Unit

The picture show the monitoring unit, the JP12 is used to connect the serial cable, you can put the

serial cables4-pin port into the JP12 and RS232 port is used connect to your computer. You dont

need to change other JP configuration.

4.5.2 Site Configure

When you add a new site successfully, should fill correct information in the blank 1:stepClickAdd: It

means that add new information for new site 2:stepfill device namedevice addressrepeater

ID COM Abilityinformation etc. 3:stepfinish all this please clickSaveto save device

information


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Setting Explanations:

Device name: Better same to site name Device address: the location where the repeater is installed

Repeater ID: all the devicesrepeater number is 0-0-0 when the device firstly is used! So you set the

repeater number ID0-0-0, if you change it and set it into monitoring unit, you must rember, or you

cant connect the monitoring unit next time. Master or slaver: default Device Code: Master repeater

code is 0, slaver repeater code between 1-254. If there is only one local repeater site, the code is 255.

Protocol Type: choose channel selective repeater-CMCC1Device Type: choose channel selective

repeaterCom Type: choose modemNet Type: same to repeater working frequency band CDMA

or GSMDevice State: choose normalDevice telephone: the number of SIM card that in the

repeaters modem. If there is no SIM card, you can fill in any numbers whatever you want, but must

ensure that the number different with another site. Query and Alarm telephone: The number of

remote monitor centre that report query and alarm information to. You can get this number from

operator. If not, fill any number in the blank. Com Ability: keep default, or select yes.

4.5.3 Setting the parameters

1) Device Parameters Device info

At first, click Query parametersto query parameters list.


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2) DeviceParameters SetPA Switch

ChooseDeviceParametersSetParameter;you can set PA Switch Status. Click SettingtoSet

3) DeviceParameters SetAttenuation

Choose Device ParametersSet Parameter; you can set Uplink/Downlink Value. Click

Setting

toSet


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DeviceParametersAlarm and Status

ChooseDeviceParametersAlarmand Status,Click Queryyoucan query current value.

DeviceParametersAlarm Enable

ChooseDeviceParametersAlarmEnable,Click Settingyoucan set current value.


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5 DESCRIPTION OF COMMON ALARM PARAMETERS

Below please find the alarms of the common GrenTech repeater models. The alarm parameters of

other manufacturers are currently unknown since they are not described in the protocols provided.However, you can understand them according to the following descriptions. For how to handle the

alarms, you can also directly inquire the appropriate manufactures.

5.1 COMMON ALARMS

Power failure alarm: When the repeaters have abnormal power supply due to a power

outage or other reasons, the monitoring module will send the power failure alarmto the

NMS by using the backup battery. For GreTech power modules, the normal input voltage

range is 180~260V, and the normal output voltage range is 7~11V. Alarms will occur

beyond this range.

Power module status alarm: This is reserved for the solar energy battery, and currently

our devices do not support this interface.

Self-excitation alarm: The device experiences self-excitation and fails to work normally.

This will affect the device and the wireless network and may even interfere with the BTS in

the worst case. When self-excitation occurs, the GrenTech devices will automatically shut

down the power amplifier and report an alarm. When the NMS receives the alarm and the

self-excitation temporarily clears since the power amplifier is turned off. Self-excitation that

occurs after it is put into service may be due to the following reasons: 1) The location of

the antenna is deviated and this reduces the isolation, which needs on-site check; 2) The

host BTS or the surrounding radio environment changes, in which case the device

parameters need to be adjusted accordingly; 3) The gain and attenuation of the device are

not set properly, in which case you can query the history records in the NMS and modify

accordingly.

Door control alarm: The chassis of the device is opened; the door of the chassis is not

closed properly after site upgrade or debug, or the door is closed properly but the door

control switch is damaged. All these could cause such alarm.

Failure of the uplink low-noise amplifier: The device fails to work normally, the uplink

signals are affected, and the calls may be not available in the coverage area. On-site

handling is required.

Failure of the downlink low-noise amplifier: The device fails to work normally, the

downlink signals are affected, and the calls may be not available in the coverage area.

On-site handling is required.


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Overpower of the uplink power amplifier: The output power of the uplink power

amplifier is above the set threshold and this may cause interference to the BTS. You can

increase the attenuation of the uplink power amplifier to adjust the uplink output power by

remote control on the NMS.

Overpower of the downlink power amplifier: The output power of the downlink poweramplifier is above the set threshold and this may affect the coverage area of the repeater.

You can increase the attenuation of the downlink power amplifier to adjust the downlink

output power by remote control on the NMS.

Over-temperature of the uplink power amplifier: The temperature of the uplink power

amplifier is too high (the threshold for GrenTech device is 70 C), and this may cause the

power amplifier module to work abnormally.

Over-temperature of the downlink power amplifier: The temperature of the downlink

power amplifier is too high (the threshold for GrenTech device is 70 C), and this may

cause the power amplifier module to work abnormally.

VSWR alarm of the uplink power amplifier: The RF signals of the uplink power amplifier

of the repeater are not effectively outputted via the antenna, and calls cannot be

connected normally in the coverage area. The possible reason is that the antenna feeder

connector is in loose contact or flooded.

SWR alarm of the downlink power amplifier: The RF signals of the downlink power

amplifier of the repeater are not effectively outputted via the antenna, and the signals are

weak in the coverage area.

Rx/Tx signal alarm: This is mainly for the front/back-end communication of the divided

devices, for example, abnormal communication of the monitoring signals between the

input end of the fiber repeater and the coverage end, abnormal communication of the

monitoring signals between the indoor coverage unit and the trunk amplifier. Such alarms

cause the failure of the back-end devices to be monitored on the NMS. Possible causes: 1)

The front-back-end monitoring data cable fails or the connector gets loose or the optical

path attenuation is so large that causes high BER; 2) The front and back-end programs do

not have the same version or the DIP switches are not set correctly on one end.

pico repeater user manual

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