RX-8123 II QI 1-0-0

USER MANUAL FOR RX-8123

RX-8123 II2 QI Copyright - refer to title page Page 1ENU Status : 1-0-0

USER MANUAL

The information contained herein is the responsibility of and is approved by the following, to whom all enquiries should be directed in the first instance:

Comba Telecom Ltd.

This is an unpublished work the copyright in which vests in Comba International ("Comba"). All rights reserved. The information contained herein is confidential and the property of Comba a d is supplied without liability for errors or

omissions. No part may be reproduced, disclosed or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied.

RX-8123 GSM850MHZ DIGITAL CHANNEL

SELECTIVE REPEATER



0.2 CONTENTS

Section Page

0.2 CONTENTS ........................................................................................................................... 2 0.3 INDEX TO FIGURES AND TABLES ..................................................................................... 4 0.4 HISTORY ............................................................................................................................... 5 0.5 GLOSSARY OF TERMS ....................................................................................................... 6 0.6 SAFETY NOTICES AND ADMONISHMENTS ...................................................................... 7

1 GENERAL INFORMATION ................................................................................................... 8

2 EQUIPMENT DESCRIPTION................................................................................................ 9 2.1 SYSTEM DIAGRAM .............................................................................................................. 9 2.2 EQUIPMENT LAYOUT ........................................................................................................ 10 2.3 EQUIPMENT CONSTITUTION ........................................................................................... 11 2.4 KIT OF PARTS .................................................................................................................... 12

3 INSTALLATION ................................................................................................................... 13 3.1 WARNINGS AND ALERTS ................................................................................................. 13 3.2 SITE PLANNING CONSIDERATIONS ................................................................................ 14 3.3 INSTALLATION PROCEDURES ........................................................................................ 15 3.3.1 GOODS INWARDS INSPECTION ...................................................................................... 15 3.3.2 TOOLS ................................................................................................................................. 15 3.3.3 PREPARATION ................................................................................................................... 15 3.3.4 WALL MOUNTING .............................................................................................................. 16 3.3.5 POLE MOUNTING OF MOUNTING RACK......................................................................... 17 3.3.6 DRIP-LOOP ......................................................................................................................... 17 3.4 EQUIPMENT CONNECTORS ............................................................................................ 18 3.4.1 CONNECTORS ................................................................................................................... 18 3.4.2 GROUNDING CONNECTION ............................................................................................. 19 3.4.3 LI-ION BATTERY CONNECTION ....................................................................................... 19 3.4.4 RF CONNECTION ............................................................................................................... 19 3.4.5 EXTERNAL ALARM CONNECTION ................................................................................... 19 3.4.6 CONNECTION BETWEEN PC AND EQUIPMENT ............................................................ 20 3.4.7 EXT ALARM CONNCETION ............................................................................................... 20

4 COMMISSIONING ............................................................................................................... 21 4.1 PRE-COMMISSIONING TASKS ......................................................................................... 21 4.2 MCU LED INDICATORS ..................................................................................................... 21 4.3 COMMISSIONING PROCEDURES .................................................................................... 22

5 OMT ..................................................................................................................................... 24 5.1 LOCAL AND REMOTE CONNECTIONS TO OMT ............................................................. 24 5.1.1 LOCAL CONNECTION TO OMT ........................................................................................ 24 5.1.2 REMOTE CONNECTION TO OMT ..................................................................................... 25 5.2 OMT CONFIGURATION ..................................................................................................... 25 5.3 RF PARAMETER ................................................................................................................ 26 5.3.1 SWITCH ............................................................................................................................... 26 5.3.2 CHANNEL NO. .................................................................................................................... 27 5.3.3 ATT ...................................................................................................................................... 27 5.3.4 ALARM THRESHOLD ......................................................................................................... 28 5.3.5 ALARM INFORMATION ...................................................................................................... 28 5.4 PROPERTIES INFO. ........................................................................................................... 29 5.4.1 EQUIPMENT ID ................................................................................................................... 29 5.4.2 COMM. CONFIG ................................................................................................................. 30



6 MAINTENANCE .................................................................................................................. 31

7 APPENDICES...................................................................................................................... 32 7.2 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE ................................. 32 7.3 APPENDIX B: SERVICING POLICY AND RETURN OF EQUIPMENT ............................. 33



0.3 INDEX TO FIGURES AND TABLES

Figure 1: RX-8123 System Diagram .............................................................................................................9 Figure 2: RX-8123 Internal Layout ............................................................................................................. 10 Figure 3: Mounting Rack Overview ............................................................................................................ 15 Figure 4: Wall Mounting ............................................................................................................................. 16 Figure 5: Pole Mounting Overview ............................................................................................................. 17 Figure 6: Bottom Panel Interface Diagram ................................................................................................ 18 Figure 7: The Connection between Equipment and PC ............................................................................ 20 Figure 8: Connection Type ......................................................................................................................... 24 Figure 9: Serial Port Configuration ............................................................................................................. 24 Figure 10: Remote Connection .................................................................................................................. 25 Figure 11: OMT Main Window ................................................................................................................... 25 Figure 12: Switch ....................................................................................................................................... 26 Figure 13: Channel No. .............................................................................................................................. 27 Figure 14: Frequency Calculator ................................................................................................................ 27 Figure 15: ATT ........................................................................................................................................... 27 Figure 16: Alarm Threshold ....................................................................................................................... 28 Figure 17: Master Alarm ............................................................................................................................ 28 Figure 18: External Alarm .......................................................................................................................... 29 Figure 19: Equipment ID ............................................................................................................................ 29 Figure 20: Com. Config. ............................................................................................................................. 30 Table 1: Equipment Constitution ................................................................................................................ 11 Table 2: Equipment KOP ........................................................................................................................... 12 Table 3: Cable Connection ........................................................................................................................ 14 Table 4: RX-8123 Connectors ................................................................................................................... 18



0.4 HISTORY

Change No. ENU Details Of Change 1 1-0-0 RX-8123 user manual first created on 24 Mar 2010.



0.5 GLOSSARY OF TERMS

ALC Automatic Level Control ATT Attenuation AFC Antenna Feedback Cancellation BTS Base Transceiver Station CSA Cross Sectional Area dB Decibel dBm Decibels relative to 1 milliwatt DL Downlink DPX Duplexer DT Donor Terminal E/O, O/E Electrical/Optical, Optical/Electrical FSK Frequency Shift Keying FOU Fiber Optical Unit GSM Global Standard for Mobile Communication Hz Hertz ID Identification LNA Low Noise Amplifier MCU Main Control Unit MHz Megahertz MT Mobile Terminal MTBF Mean Time Between Failures NF Noise Figure OMC Operation & Maintenance Center OMT Operation & Maintenance Terminal OP Optical Fiber PA Power Amplifier PLL Phase Locked Loop PSU Power Supply Unit RF Radio Frequency RFU Radio Frequency Unit RX Receive SMA Sub-Miniature A Connector SIU Slide-In-Unit TX Transmit UL Uplink VAC Volts Alternating Current VSWR Voltage Standing Wave Ratio WDM Wavelength Division Multiplexer



0.6 SAFETY NOTICES AND ADMONISHMENTS

This document contains safety notices in accordance with appropriate standards. In the interests of conformity with the territory standards for the country concerned, the equivalent territorial admonishments are also shown. Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained, authorized personnel. At all times, personnel must comply with any safety notices and instructions. Specific hazards are indicated by symbol labels on or near the affected parts of the equipment. The labels conform to international standards, are triangular in shape, and are coloured black on a yellow background. An informative text label may accompany the symbol label. Hazard labeling is supplemented by safety notices in the appropriate equipment manual. These notices contain additional information on the nature of the hazard and may also specify precautions. Warning: These draw the attention of personnel to hazards that may cause death or injury to the operator or others. Examples of use are cases of high voltage, laser emission, toxic substances, point of high temperature, etc. Alert: These draw the attention of personnel to hazards that may cause damage to the equipment. An example of use is the case of static electricity hazard. Caution notices may also be used in the handbook to draw attention to matters that do not constitute a risk of causing damage to the equipment but where there is a possibility of seriously impairing its performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main text do not incorporate labels and may be in shortened form. CAUTION: danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.

End of Section



1 GENERAL INFORMATION

The RX-8123 GSM850 digital channel selective repeater is designed for 850MHz network. It can wireless transmit, two-way amplify GSM uplink and downlink signals and is designed for eliminating communicational coverage blind spots. By using the new Comba AFC (Antenna Feedback Cancellation) technique, the system isolation tolerance has been greatly improved: Imax>G-15dB, which was obliged to be higher than G+15dB under conventional technique. Characteristics of RX-8123 are as follows: Supports multiple carriers. Uplink and downlink with digital carrier selective frequency can efficiently

amplify BS signal.

With AFC function

Adopt high linear PA and ensure GSM signal efficiently being amplified.

With out-of- band suppression and supports automatic gain temperature compensation function which can maintain regular operation among working temperature.

Local Operation and Maintenance Terminal (OMT): operating status and parameters can be set or monitored by OMT PC locally. It can also check the downlink power and download the latest OMT version.

Operation Maintenance Center (OMC): system working parameters and communication configuration can be set or inquired remotely through the build-in GSM modem. If alarm is generated, the equipment will dial up to OMC automatically in the mode of SMS or GPRS.

Build-in Li-ion battery ensures that alarm information can automatically report to OMC in case of equipment power failure.

Designed for all weather outdoor application waterproof, damp-proof and Omni-sealed (IP65). The following figure shows the enclosure of the RX-8123.

492

276

276

DT

POWER MODEMALARM

MT 228

372

Figure 1: Views of RX-8123 Enclosure

End of Section



2 EQUIPMENT DESCRIPTION

2.1 SYSTEM DIAGRAM

Figure 1: RX-8123 System Diagram

As shown in the above figure, the downlink BS signals go through DT port to the system and then to downlink by duplexer separation. The DL signals will go through DT duplexer then to AFC digital processing module for digital filtering and self-oscillation elimination. Then the DL signals will be sent to downlink PA to amplify power and filter via duplexer. After amplification, the signals are transmitted at the MT port to the service antenna. On the UL, the signals transmitted by the mobile go through MT integration duplexer and AFC digital processing module then to uplink PA to power amplify and filter via duplexer, finally get back to BS by donor antenna.



2.2 EQUIPMENT LAYOUT

The following figure shows RX-8123 internal layout.

DL PAUL PA

Duplexer

VSWR Module

Surge ArrestorMODEM

Distribution Board

PSU

Li-io

n Ba

ttery

AFC Digital ModuleANTTX RX

Figure 2: RX-8123 Internal Layout



2.3 EQUIPMENT CONSTITUTION

RX-8123 consists of the modules described as below:

Name Description

AFC Digital Module

LNA Frequency Conversion Unit

IF unit

Can sampling, quantization and numbering and transmit BS signal into digital base band signal.

Digital Processing Module Processes and filters base band data

AFC unit

Supports digital adaptive process, counteracts oscillation signal and base-banded selects useful signals

Uplink/Downlink PA Amplifier uplink and downlink power

Duplexer Realize UL/DL TX and RX isolation

PSU Converts the input voltage into a stable DC to provide power for other modules

VSWR Module Test the antenna and cable systems of MT end.

Surge Arrestor

This provides protection to the PSU. It is assumed that the antenna system will have ample lightning protection.

Li-ion Battery

Provides power to the Main Control Unit to send alarm signals in the event of power failure

Table 1: Equipment Constitution



2.4 KIT OF PARTS

For this system, the following are shipped:

Product Identifier Description QuantityRX-8123 QI This equipment manual on CD-Rom 1 Mounting Rack RRU-040L-5811 1 Fuse Delay fuse for PSU 2 Key N/A 2 Local Commissioning Cable R-9122C/R-9122AC 1 M10110 Masonry Bolt 4

M10 x 85 x 110 U Bolt (with 2 nuts, flat washer, spring washer per bolt) 2

5.5mm Allen Key 1 N/A Omni Antenna 1 OMT-D OMT software on CD-Rom 1 Factory Test Report N/A 1

Table 2: Equipment KOP

End of Section



3 INSTALLATION

3.1 WARNINGS AND ALERTS

Radio Frequency Energies There may be situations, particularly for 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 to prevent, as far as reasonably, practicable danger. Any work activity on or near equipment involving installation, operation or maintenance must be, as far as reasonably, free from danger. Where there is a risk of damage to electrical systems involving adverse weather, extreme temperatures, wet, corrosive or dirty conditions, flammable or explosive atmospheres, the system must be suitably installed to prevent danger. Protective Earthing Equipment provided for the purpose of protecting individuals from electrical risk must be suitable for the purpose and properly maintained and used. Handling Precautions This covers a range of activities including lifting, lowering, pushing, pulling, carrying, moving, holding or restraining an object, animal or person. It also covers activities that require the use of force or effort, such as pulling a lever, or operating power tools. Electrostatic Discharge (ESD) Observe standard precautions for handling ESD-sensitive devices. Assume that all solid-state electronic devices are ESD-sensitive. Ensure the use of a grounded wrist strap or equivalent while working with ESD-sensitive devices. Transport, store, and handle ESD-sensitive devices in static-safe environments.



3.2 SITE PLANNING CONSIDERATIONS

Site Considerations

The site considerations are listed below: The distance between the donor antenna and the BS should satisfy line of sight requirements for

maximum coverage area. The received spots accept field intensity at least -70dBm. Make sure that TX and RX antennas isolation should more than the max gain that of -15dB. Supply power near by the BS and easily access to the grounding spot. Installation Location

Mounting surface shall be capable of supporting the weight of the equipment. In order to avoid electromagnetic interference, a proper Mounting location must be selected to minimize interference from electromagnetic sources such as large electrical equipment. Chassis output interface should install higher 1.2m than the ground. Environmental

Humidity has an adverse effect on the reliability of the equipment. It is recommended to install the equipment in locations having stable temperature and unrestricted air-flow which should under the temperature that of 0oC ~40oC and relative humidity of maximal 85%. The installation location for the product should be well ventilated. The equipment has been designed to operate at the temperature range and humidity level as stated in the product specifications in the datasheet. Direct sun light exposure to the equipment should be avoided. Provide additional shelter if necessary. Powering

The power supply unit (PSU) provides power to all modules within the equipment. Depending on the product variant, it is recommended that the PSU operates on a dedicated circuit breaker or fused circuit. Grounding Requirement

Verify that the equipment has been well grounded. This includes antennas and all cables connected to the system. Ensure lightning protection for the antennas is properly grounded. Cable Routing

Depending on equipment configuration, a variety of types of cables are required. Where applicable, ensure cables are properly routed and secured so that they are not damaged. Cable requirements are as follow: NAME CONNECTION DESCRIPTION Coaxial Cable N to N Connect BS cable to DT port Coaxial Cable N to N Connect serve antenna cable

to MT port RS 232 Cable RS 232

Table 3: Cable Connection Manual Handling

During transportation and installation, take necessary handling precautions to avoid potential physical injury to the installation personnel and the equipment.



3.3 INSTALLATION PROCEDURES

3.3.1 GOODS INWARDS INSPECTION

1. Verify the number of packages received against the packing list. 2. Check all packages for external damage; report any external damage to the shipping courier. 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.

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

4. Do not remove items from antistatic packing until ready for installation. If damage is discovered at the time of installation, contact the shipping agent.

3.3.2 TOOLS

See Appendix A for a full list of the recommended tools required for installation and maintenance. 3.3.3 PREPARATION

Wall mounting with the masonry bolts supplied, which make use of the outer holes. Pole Mounting with the clamp kit supplied, which make use of the inner holes.

8- 13

For Wall Mounting

For Pole Mounting

402

20085

Figure 3: Mounting Rack Overview



3.3.4 WALL MOUNTING

Drill holes on the wall by using the position of the four round holes on the Mounting rack as a guide. Insert the masonry bolts M10x110 through the round holes and tighten them to take the weight of

the entire enclosure. Hook the enclosure up onto the mounting rack and align the hole positions to that of the mounting

rack, then installed the hex socked bolt (M8 x 20) to complete the installation.

Plain Washer

Spring Washer

Masonry Bolt M10

Spring Washer

Mounting RackHex Socket Bolt M8x20 (5.5)

Plain Washer

Figure 4: Wall Mounting



3.3.5 POLE MOUNTING OF MOUNTING RACK

The equipment can be mounted on a pole of about 60~75mm in diameter. Insert and tighten the two U bolts to secure the mounting rack onto the pole. The remaining installation to secure the enclosure to the mounting rack is identical to wall mounting.

Side BoltPole

Mounting Rack

Nut M10

Spring Washer

Flat WasherFlat Washer

Spring Washer

U-Bolt M10x85x110

Hex Socket Bolt M8x20 (5.5)

Figure 5: Pole Mounting Overview

3.3.6 DRIP-LOOP

Comba recommends that every horizontal cable entry to the equipment forms a 'U' before its entry to the equipment. Water on the cable will drip down at the bottom of the loop and will not accumulate at the equipment connectors.



3.4 EQUIPMENT CONNECTORS

3.4.1 CONNECTORS

.

DT

POWER MODEM ALARM

MT

Figure 6: Bottom Panel Interface Diagram

The connection interfaces are shown below:

Connector DescriptionMT N-female connector, for external mobile antenna DT N-female connector, for external donor antenna

Power1 Power Supply Interface MODEM connector for Modem antenna

Table 4: RX-8123 Connectors

1 The voltage identification is a variant due to electricity system diversity of global regions. The power cable gland might be identified for AC 220V, AC 110V, AC 220V/110V, DC -48V, or DC +24V respectively. Please refer to specific product or contact local sales if any doubt.



3.4.2 GROUNDING CONNECTION

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 earth wire of the power cord to the ground terminal of the AC supply. 3.4.3 LI-ION BATTERY CONNECTION

Li-ion battery is provided with this system to ensure power is supplied to the system monitoring unit and MCU and to ensure the alarm message could be sent to OMC effectively in case of mains power failure. Caution: Be careful of the risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.

3.4.4 RF CONNECTION

Donor antenna connection: Connect the cable form donor antenna to DT port Mobile antenna connection: Connect the cable form mobile antenna to MT port

3.4.5 EXTERNAL ALARM CONNECTION

The external alarm port is used to connect with other external equipment and alarm ports. Connection is not must in case there is no external alarm port.



3.4.6 CONNECTION BETWEEN PC AND EQUIPMENT

The below shows the connection:

RS-232

GSM Network/PSTN

Wireless Build-in

GSM Modern

Realize remote monitor

Local Monitoring

Wire/Wireless Modem

Monitoring Center

RS232 cable

Figure 7: The Connection between Equipment and PC

Note that when connect the RS-232 with PC, the equipment should be power off and Li-ion battery output connector is disconnected. 3.4.7 EXT ALARM CONNCETION

The EXT ALARM port is a 7-pin CPC connector. The following figure and table show the pin allocation and definition. Pin numbering are shown looking-into the connector on the enclosure.

21

6 73 54

Figure 2: Pins Allocation for EXT_ALM Port

Pin number 1 2 3 4 5 6 7

Alarm definition

EXT. Alarm 1

EXT. Alarm 2

EXT. Alarm 3 GND

EXT. Alarm 4 Reserved Reserved

Table 1: Pin Definition of EXT_ALM Port

End of Section



4 COMMISSIONING

4.1 PRE-COMMISSIONING TASKS

After equipment installation, perform the following steps before equipment powering and commissioning, check that the expected voltage, current, and power levels do not violate any ratings. Double check all connections including ground before applying power. Do not manipulate circuits or make changes when power is applied: Visually inspect the power connection within the equipment. Ensure that the power cable is correctly

and securely connected, including grounding wire, RF cable and optical cable. Check grounding connection and verify that the ground resistance is less than 5. Connect the equipment to the PC installed with OMT software. Check antenna system return loss which working frequency band return loss should less than -14dB

(VSWR < 1.5) The online commissioning can be commenced with following the commissioning steps. 4.2 MCU LED INDICATORS

Three diagnostic LEDs are located on MCU, each indicates the status of a particular function:

LED 2LED 3LED 4

LED 1MCU

Connector to Distribution Board

Figure 3: LEDs on MCU

Identifier Colour Indication LED 1 Green Initiation indicator, flashes one time after supplying power

LED 2 Green Operation indicator Flashes once every second to indicate normal system operation. LED 3 Red Alarm indicator. ON = alarm; OFF = no alarm

LED 4 Red Modem status indicator. Flashes during initiating, and go off after that. If the indicator is continuous on then the initiating fails. Table 2: MCU LEDs



4.3 COMMISSIONING PROCEDURES

Perform the following procedures for system commissioning.

On line & Inquiry Status

External Alarm

Yes

Enable External Alarm and Configure Voltage applied to EXT Alarm

Set Channel NO.

Adjust Downlink ATT and Measure Downlink Output Power

Signal Input

Exit from OMT

Remote Connection to OMC

Yes

Configure [Equipment ID]

Comm. Comfig

Select Monitoring Parameters

No

No

Test-Call

Double Check No Interference to BTS and Antenna Isolation Meets Requirements



Commissioning Tasks Observation

1. On-line and Inquiry status

Activate the OMT Main window. The system Initialization will completed in about 2 minutes.

Click Connect button to enquire the repeaters status. Proceed if there is no alarm; else check the failure and attend to the alarm.

2. Set Channel No.

1. Keep RF switch ON and set the channel number of the repeaters operating frequency.

3. Adjust Downlink Output Power and align donor antenna

Observe DL input power from measured value. Align the direction of donor antenna until the DL input power reading is maximized.

2. Note: To ensure that the measured DL input power is accurate, one should set the DL ATT to 0 before performing the check.

4. Configure [Equipment ID] Go to [Properties Info] and set [Equipment ID].

5. Comm. Config Enable the power supply by selecting On in [RF] -> [Switch]; go

to [Properties Info.] -> [Comm. Config.] and set OMC Phones No. , the service No. of SMSC, Report Mode.

6. Select Monitoring Parameters

3. Select the equipment controlled and monitored parameters. If the external devices are connected to the equipment for

management, please enable in the [External Alarm Info.] Interface.

7. Test coverage area field intensity and adjust service antenna.

Use test-handset to verify field intensity within the coverage area. If needed, realign the service antenna to achieve the desired coverage.

4. Note: If during operation, the equipment gain could not be set to maximum or the output power is not high enough due to insufficient donor and service antennas isolation, then the antennas position should be changed to increase isolation. If the output power is too high and ALC is activated, then adjust the DL ATT to achieve optimal DL Gain.

8. Verify UL gain and ensure test call produces good voice quality and there is no interfering BTS

Adjust UL gain and perform test calls. Typically, the UL gain is set around 5dB less than DL gain. Perform test calls in the coverage area while adjusting UL gain if required.

Note: If the repeater is near the BTS and the test call performance is poor, this may be due to UL noise interference to the BTS. Users can calculate and determine if the repeater UL noise will interfere with the BTS.

5. Verify again that there is no unacceptable interference to BTS. Table 3: Commissioning

End of Section



5 OMT

The equipment can be monitored and controlled by OMT software running on a local PC with local commissioning cable, remote connection to the equipment via wireless GSM / CDMA network.

OMT software running on a local PC with serial connection to the equipment. OMC (optional) software with remote connection to the equipment over wireless GSM / CDMA

network. This chapter is to introduce how to apply local and remote connection to OMT for the first installation, for the detailed OMT information, please refer to OMT user manual and other references. Notice: The OMC software with remote connection to the equipment over wireless GSM / CDMA network is optional for customers. 5.1 LOCAL AND REMOTE CONNECTIONS TO OMT

After installing OMT software on the PC, connection to the equipment can be done locally or remotely. Double click the OMT explorer icon, the OMT Explorer main screen window will appear. 5.1.1 LOCAL CONNECTION TO OMT

After database configuration is done successfully, the following window will pop up and select [Local connection via RS-232] for local connection.

Figure 8: Connection Type

Select the desired communication port and click OK, it will enter into the main window of OMT.

Figure 9: Serial Port Configuration



5.1.2 REMOTE CONNECTION TO OMT

If remote connection is needed, users can select [Remote connection via modem] in connection type window. Select desired serial port and click OK in [Serial Port Configuration] window to go to OMT main window and start modem initialization. Click connect and the [Remote Connection] window will show up.

Figure 10: Remote Connection

Config: Enter the correct phone number (Users don't have to enter the password) and click connect, it will be connected remotely. Notice: Please enable the SIM card to support Circuit Switch Data. 5.2 OMT CONFIGURATION

After entering the OMT main screen, click the Connect button on the toolbar, to connect the equipment to the OMT. Successful connection will be indicated by a message Online Ok and equipment parameters can be read and/or set. Users can configure the parameters, and then offset the parameters according to desired coverage level and interference to other BTS signals. OMT parameters include: Common Information, RF Information, Alarm Information, and Properties Information.

Figure 11: OMT Main Window



5.3 RF PARAMETER

It is recommended to configure the following RF parameters for the first installation. 5.3.1 SWITCH

Switch is to enable/disable power for internal modules. When user checks and sets non-RF parameters, such as checking physical antenna connection, switching off will disable equipment power temporarily to protect PA in operation.

Figure 12: Switch

Self-oscillation opposed switch: if the switch off , the repeater is the same as the normal repeater; if the switch is on, the repeater can work under the condition of the isolation of DT and MT antenna is more than the value of the gain minus 15dB.

Self-oscillation control switch: if the repeater cant oppose the oscillation, and the switch is on, the repeater will set the ATT to decrease the system gain itself according to the isolation.

RF Switch: Turn off DL PA and UL PA. Config: Select the required state in setting columns of RF information window for RF switch, then press [Enter] or [Config] button to finish the configuration operation.



5.3.2 CHANNEL NO.

Channel No. includes Low Edge Channel No. and High Edge Channel No. The value in [MaxValue] column is the upper limit of the range, while the value in [MinValue] column is the lower limit of the range.

Figure 13: Channel No.

Config: Enter the required value in setting columns and click [Config] button to finish the configuration operation. There are two methods to insert the channel number:

Insert the desired channel number (within the setting range) into the [Setting] column directly Right click the [Setting] column, the [Frequency Calculator] dialogue window seen as below will pop-

up, insert the desired channel number. Then the corresponding frequency will turn up automatically. This function makes it easier for user to configure.

Figure 14: Frequency Calculator

5.3.3 ATT

ATT adjustment includes UL/DL ATT adjustment. The purpose of adjusting the ATT is to adjust system gain. DL/UL ATT setting range: 0~30dB

Figure 15: ATT

Config: Select the required value in setting columns of RF information window for ATT, and press [Enter] or [Config] button to finish the configuration operation.



5.3.4 ALARM THRESHOLD

Alarm Threshold includes Power threshold, Temperature threshold and VSWR threshold. Users can set alarm threshold according to the specific situation. If the measured value is lower than the threshold lower limit or more than the threshold upper limit, the appropriate alarm will be generated.

Figure 16: Alarm Threshold

Config: Enter the required value in setting columns of RF information window for Alarm threshold, and press [Enter] or [Config] button to finish the configuration operation. 5.3.5 ALARM INFORMATION

Alarm information operation is to select alarm parameters for monitoring. Alarm parameters include Master Alarm, Channel Alarm and External Alarm. Click any tree node in [Alarm Info] group, [Alarm Parameter Information] window will appear in the right side. The picture below shows the master alarm information.

Figure 17: Master Alarm



Figure 18: External Alarm

Config: Tick the check box of [Item select] and [Enable] of the desired parameters and click [config] button to finish configuration operation.

Notice: [Enable] box is to enable the alarm monitoring for system. Only if users enable the alarm by ticking the [Enable] box, the alarms can be monitored by the OMT/OMC. On the MCU, if any alarm is generated and this alarm is also enabled in [Enable] box, LED H2 turns RED; while it is OFF when normal working. On the OMT/OMC window, [Alarm Status] indicator keeps GREEN if no alarm and turns RED if an alarm is generated. 5.4 PROPERTIES INFO.

5.4.1 EQUIPMENT ID

Equipment ID is to be configured after local commission has been completed, which includes Site ID, and Site Sub ID.

Figure 19: Equipment ID

See the table below for configuration details of each parameter.

Item Description Site ID Site ID is the unique equipment identification. It is a hexadecimal string of eight

characters in the range of [00000000~FFFFFFFF]. e.g. 00000000 Site Sub ID Site Sub ID is used for Master-Slave System. It is the unique identification of

each Master/ Slave Unit and is a hexadecimal string of two characters in the range of [00~FF]. For the system located with single equipment, the Site Sub ID should be FF. For Master-Slave system, the Site Sub ID for Master Unit is 00, and the Site Sub ID for each Slave Unit is represented in the range of [01~FE] in ascending order. e.g. Master Site ID: 00, Slave Site ID: 01



5.4.2 COMM. CONFIG

If the equipment is to be monitored by OMC software over wireless GSM / CDMA network, users must finish the [Comm. Config.] in the next step. The Comm. Config information requires to be manually entered by users after successful connection to the equipment.

Figure 20: Com. Config.

See the table below for configuration details of each parameter.

Item Description

Checking Control Select Enable or Disable from the drop down menu as shown to enable or disable the Phone Number Authentication feature. Refer to [Phone No.] in details.

OMC Server IP Based on the current network conditions, users can enter the IP address information of the equipment, which is connected to the OMT/OMC via Ethernet. This connection via Ethernet is not available at this stage.

Phone No. This is designed for authentication purpose when remote connection via modem is required. It is the phone number to dial the equipment. Only the phone number pre-defined in this field, will it be allowed to dial the equipment. It is required to manually enter the phone number. Up to 5 phone numbers are allowed. The use of phone number authentication can avoid unauthorized use of the OMT. In addition, it can prevent the equipment receiving piles of spam short messages, thus help the operator greatly reduce the cost.

Report Config The Report No. is the SIM card number of the modem built into the OMC Server computer. The equipment will send alarm SMS to this number. If remote communication is needed via modem, users have to enable SMS mode and set the report phone No. by entering the SIM card number of the equipment built-in modem.

SMSC No. It specifies the SMS center. Users have to set the service No. of SMSC for the first installation, so that the alarms can be sent to OMC.

End of Section



6 MAINTENANCE

The RX-8123 repeater is designed for trouble-free operation and generally does not need maintenance. Maintenance activities should only be carried out by trained personnel. The equipment operation status can be observed remotely through OMC. Periodic inspection of the repeater equipment(s) is recommended, the recommended tasks includes:

Inspect and record operation status and output power of the repeater from OMC or OMT. Verify the direction and position of antennas. Re-align if necessary. Make sure the cable gland and sealing on the RF cable connectors are not damaged. Verify lightning and grounding protection is in good condition.

End of Section



7 APPENDICES

7.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE

The following are the recommended list of tools new installation and routine maintenance:

Slotted screwdriver Philips screwdriver Ring spanner (Assorted size: 12~20mm) Electrically operated drill and masonry drill bits 10mm Anti-static wrist strap Allen key (M5.5) Side cutter Frequency counter (e.g. FLUKE PM6685R) RF Power Meter (e.g. Bird 5000) T-shaped Pentagon Key Wrench



7.2 APPENDIX B: SERVICING POLICY AND RETURN OF EQUIPMENT

The repair of individual units and modules of this equipment is not considered practicable without factory facilities. It is, therefore, the policy of Comba whereby faulty units or modules are returned to the local agent for repair. To enable an efficient, prompt after sales service to be provided for the diagnosis, repair and return of any faulty equipment, please comply with the following requirements. Items to be sent for repair should be packaged so as to provide both electrostatic and physical protection and a Repair Material Authorization (RMA) should be completed giving the required information. A sample RMA form is provided in Appendix. This request must be included with the item for repair. Items for repair should be sent to the nearest Comba office: COMBA TELECOM LTD. Hong Kong Office Address: 611 East Wing, No. 8 Science Park West Avenue, Hong Kong Science Park, Tai Po, Hong

Kong. Tel: +852 2636 6861 Fax: +852 2637 0966 Singapore Office Address: No. 1 Kaki Bukit View, #02-10 Techview, Singapore 415941 Tel: + 65 6345 4908 Fax: + 65 6345 1186 Thailand Office Address: 3rd Floor, T. Shinawatra Building, 94 Sukhumvit Soi 23, Sukhumvit Road, Klongtoeynua,

Wattana, Bangkok 10110 Tel: +66 2664 3440 Fax: +66 2664 3442 India Office Address: Suite No. 2, E-172, TSH House, Greater Kailash I, New Delhi 110 048, India Tel: + 91 11 4173 9997 / 8 Fax: + 91 11 4173 9996 Sweden Office Address: Gustavslundsvagen 147, S- 167 51 Bromma, Stockholm, Sweden Tel: +46 8 25 38 70 Fax: +46 8 25 38 71 Brazil Office Address: Avenida Engenheiro Luiz Carlos Berrini 1297, cj 122, 04571-090 Brooklin Novo, So Paulo,

Brazil Tel: +55 11 55050549 Fax: +55 11 55050549 ext 7 Dubai Office Address: P.O. Box 450583, DUBAI, U.A.E. Tel: +971 0 4 433 5320 Fax: +971 0 4 422 6774 US Office Address: Comba Telecom Inc. 239

RX-8123 II QI 1-0-0

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