90387808-USER-MANUAL-FOR-RX-8123-COMBA (1)

5/27/2018 90387808-USER-MANUAL-FOR-RX-8123-COMBA (1)

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USER MANUAL FOR RX-8123

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

USER MANUAL

The information contained herein is theresponsibility of and is approved by thefollowing, to whom all enquiries shouldbe 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This is an unpublished work the copyright in which vests in Comba International ("Comba").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 ad 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. Thecopyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied.

RX-8123GSM850MHZ DIGITAL CHANNEL

SELECTIVE REPEATER


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0.2 CONTENTS

Section Page

0.2 CONTENTS ........................................................................................................................... 20.3 INDEX TO FIGURES AND TABLES ..................................................................................... 40.4 HISTORY ............................................................................................................................... 50.5 GLOSSARY OF TERMS ....................................................................................................... 60.6 SAFETY NOTICES AND ADMONISHMENTS ...................................................................... 71 GENERAL INFORMATION ................................................................................................... 82 EQUIPMENT DESCRIPTION................................................................................................ 92.1 SYSTEM DIAGRAM .............................................................................................................. 92.2 EQUIPMENT LAYOUT ........................................................................................................ 102.3 EQUIPMENT CONSTITUTION ........................................................................................... 112.4

KIT OF PARTS .................................................................................................................... 12

3 INSTALLATION ................................................................................................................... 133.1 WARNINGS AND ALERTS ................................................................................................. 133.2 SITE PLANNING CONSIDERATIONS ................................................................................ 143.3 INSTALLATION PROCEDURES ........................................................................................ 153.3.1 GOODS INWARDS INSPECTION ...................................................................................... 153.3.2 TOOLS ................................................................................................................................. 153.3.3 PREPARATION ................................................................................................................... 153.3.4 WALL MOUNTING .............................................................................................................. 163.3.5 POLE MOUNTING OF MOUNTING RACK......................................................................... 173.3.6 DRIP-LOOP ......................................................................................................................... 173.4 EQUIPMENT CONNECTORS ............................................................................................ 183.4.1 CONNECTORS ................................................................................................................... 183.4.2 GROUNDING CONNECTION ............................................................................................. 193.4.3 LI-ION BATTERY CONNECTION ....................................................................................... 193.4.4 RF CONNECTION ............................................................................................................... 193.4.5 EXTERNAL ALARM CONNECTION ................................................................................... 193.4.6 CONNECTION BETWEEN PC AND EQUIPMENT ............................................................ 203.4.7 EXT ALARM CONNCETION ............................................................................................... 204 COMMISSIONING ............................................................................................................... 214.1 PRE-COMMISSIONING TASKS ......................................................................................... 214.2 MCU LED INDICATORS ..................................................................................................... 214.3 COMMISSIONING PROCEDURES .................................................................................... 225 OMT ..................................................................................................................................... 245.1 LOCAL AND REMOTE CONNECTIONS TO OMT ............................................................. 245.1.1 LOCAL CONNECTION TO OMT ........................................................................................ 245.1.2 REMOTE CONNECTION TO OMT ..................................................................................... 255.2 OMT CONFIGURATION ..................................................................................................... 255.3 RF PARAMETER ................................................................................................................ 265.3.1 SWITCH ............................................................................................................................... 265.3.2 CHANNEL NO. .................................................................................................................... 275.3.3 ATT ...................................................................................................................................... 275.3.4 ALARM THRESHOLD ......................................................................................................... 285.3.5 ALARM INFORMATION ...................................................................................................... 285.4 PROPERTIES INFO. ........................................................................................................... 295.4.1 EQUIPMENT ID ................................................................................................................... 295.4.2 COMM. CONFIG ................................................................................................................. 30


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6 MAINTENANCE .................................................................................................................. 317 APPENDICES...................................................................................................................... 327.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE ................................. 327.2 APPENDIX B: SERVICING POLICY AND RETURN OF EQUIPMENT ............................. 337.3 APPENDIX C: RMA (RETURN MATERIAL AUTHORIZATION) FORM ............................. 34


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0.3 INDEX TO FIGURES AND TABLES

Figure 1: RX-8123 System Diagram .............................................................................................................9Figure 2: RX-8123 Internal Layout ............................................................................................................. 10Figure 3: Mounting Rack Overview ............................................................................................................ 15Figure 4: Wall Mounting ............................................................................................................................. 16

Figure 5: Pole Mounting Overview ............................................................................................................. 17Figure 6: Bottom Panel Interface Diagram ................................................................................................ 18Figure 7: The Connection between Equipment and PC ............................................................................ 20Figure 8: Connection Type ......................................................................................................................... 24Figure 9: Serial Port Configuration ............................................................................................................. 24Figure 10: Remote Connection .................................................................................................................. 25Figure 11: OMT Main Window ................................................................................................................... 25Figure 12: Switch ....................................................................................................................................... 26Figure 13: Channel No. .............................................................................................................................. 27Figure 14: Frequency Calculator ................................................................................................................ 27Figure 15: ATT ........................................................................................................................................... 27Figure 16: Alarm Threshold ....................................................................................................................... 28Figure 17: Master Alarm ............................................................................................................................ 28Figure 18: External Alarm .......................................................................................................................... 29Figure 19: Equipment ID ............................................................................................................................ 29Figure 20: Com. Config. ............................................................................................................................. 30

Table 1: Equipment Constitution ................................................................................................................ 11Table 2: Equipment KOP ........................................................................................................................... 12Table 3: Cable Connection ........................................................................................................................ 14Table 4: RX-8123 Connectors ................................................................................................................... 18


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0.4 HISTORY

Change No. ENU Details Of Change

1 1-0-0 RX-8123 user manual first created on 24 Mar 2010.

2 1-0-1 Revised the modem cable drawing, KOP, front panel drawing aswell as Thailand address in April 2011.


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0.5 GLOSSARY OF TERMS

ALC Automatic Level Control

ATT AttenuationAFC 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 KeyingFOU 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


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0.6 SAFETY NOTICES AND ADMONISHMENTS

This document contains safety notices in accordance with appropriate standards. In the interests ofconformity with the territory standards for the country concerned, the equivalent territorial admonishmentsare 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. Thelabels conform to international standards, are triangular in shape, and are coloured black on a yellowbackground. An informative text label may accompany the symbol label.

Hazard labeling is supplemented by safety notices in the appropriate equipment manual. These noticescontain 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 exampleof 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 arisk of causing damage to the equipment but where there is a possibility of seriously impairing itsperformance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main textdo not incorporate labels and may be in shortened form.

CAUTION: danger of explosion if battery is incorrectly replaced. Replace only with the same orequivalent type.

End of Section


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1 GENERAL INFORMATION

The RX-8123 GSM850 digital channel selective repeater is designed for 850MHz network. It can wirelesstransmit, two-way amplify GSM uplink and downlink signals and is designed for eliminatingcommunicational 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 obligedto 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 efficientlyamplify 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 functionwhich can maintain regular operation among working temperature.

Local Operation and Maintenance Terminal (OMT): operating status and parameters can be set ormonitored 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 configurationcan be set or inquired remotely through the build-in GSM modem. If alarm is generated, theequipment 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 ofequipment 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

POWERMODEM

ALARM

MT 2

28

372

Figure 1: Views of RX-8123 Enclosure

End of Section


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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 todownlink by duplexer separation. The DL signals will go through DT duplexer then to AFC digitalprocessing module for digital filtering and self-oscillation elimination. Then the DL signals will be sent todownlink PA to amplify power and filter via duplexer. After amplification, the signals are transmitted at theMT port to the service antenna.

On the UL, the signals transmitted by the mobile go through MT integration duplexer and AFC digitalprocessing module then to uplink PA to power amplify and filter via duplexer, finally get back to BS bydonor antenna.


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2.2 EQUIPMENT LAYOUT

The following figure shows RX-8123 internal layout.

DL PAUL PA

Duplexer

VSWR

Module

Surge

ArrestorMODEM

Distribution Board

PSU

Li-ion

Battery

AFC Digital Module

ANTTX RX

Figure 2: RX-8123 Internal Layout


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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 andnumbering and transmit BSsignal into digital base bandsignal.

Digital Processing ModuleProcesses and filters base banddata

AFC unit

Supports digital adaptiveprocess, counteracts oscillationsignal and base-banded selectsuseful signals

Uplink/Downlink PA Amplifier uplink and downlinkpower

DuplexerRealize UL/DL TX and RXisolation

PSUConverts the input voltage into astable DC to provide power forother modules

VSWR ModuleTest the antenna and cablesystems of MT end.

Surge Arrestor

This provides protection to thePSU. It is assumed that theantenna system will have ample

lightning protection.

Li-ion Battery

Provides power to the MainControl Unit to send alarmsignals in the event of powerfailure

Table 1: Equipment Constitution


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2.4 KIT OF PARTS

For this system, the following are shipped:

Product Identifier Description Quantity

RX-8123 QI This equipment manual on CD-Rom 1Mounting 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 110U Bolt (with 2 nuts, flat washer, springwasher per bolt)

2

5.5mm Allen Key 1

OMT-D OMT software on CD-Rom 1

Factory Test Report N/A 1Table 2: Equipment KOP

End of Section


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3 INSTALLATION

3.1 WARNINGS AND ALERTS

Radio Frequency Energies

There may be situations, particularly for workplace environments near high-powered RF sources, whererecommended 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 asreasonably, 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 suitablyinstalled to prevent danger.

Protective Earthing

Equipment provided for the purpose of protecting individuals from electrical risk must be suitable for thepurpose and properly maintained and used.

Handling Precautions

This covers a range of activities including lifting, lowering, pushing, pulling, carrying, moving, holding orrestraining an object, animal or person. It also covers activities that require the use of force or effort, suchas pulling a lever, or operating power tools.

Electrostatic Discharge (ESD)

Observe standard precautions for handling ESD-sensitive devices. Assume that all solid-state electronicdevices are ESD-sensitive. Ensure the use of a grounded wrist strap or equivalent while working withESD-sensitive devices. Transport, store, and handle ESD-sensitive devices in static-safe environments.


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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 formaximum 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 minimizeinterference 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 theequipment in locations having stable temperature and unrestricted air-flow which should under thetemperature that of 0

oC ~40

oC and relative humidity of maximal 85%.

The installation location for the product should be well ventilated. The equipment has been designed tooperate at the temperature range and humidity level as stated in the product specifications in thedatasheet.

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 theproduct 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 tothe 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 cableto 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.


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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 contentsbecause 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 contactComba.

4. Do not remove items from antistatic packing until ready for installation. If damage is discovered at thetime 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

200

85

Figure 3: Mounting Rack Overview


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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 ofthe entire enclosure.

Hook the enclosure up onto the mounting rack and align the hole positions to that of the mountingrack, then installed the hex socked bolt (M8 x 20) to complete the installation.

Plain

WasherSpring

Washer

Masonry Bolt

M10

Spring Washer

Mounting RackHex Socket Bolt

M8x20 (5.5)

Plain Washer

Figure 4: Wall Mounting


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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 theequipment. Water on the cable will drip down at the bottom of the loop and will not accumulate at theequipment connectors.


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3.4 EQUIPMENT CONNECTORS

3.4.1 CONNECTORS

.

DT

POWERMODEM ALARM

MT

Figure 6: Bottom Panel Interface Diagram

The connection interfaces are shown below:

Connector Description

MT N-female connector, for external mobile antenna

DT N-female connector, for external donor antenna

Power1 Power Supply Interface

MODEM Reserved

Table 4:RX-8123 Connectors

1The 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 tospecific product or contact local sales if any doubt.


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3.4.2 GROUNDING CONNECTION

Ground Connection

To ensure safe operation of the product, a ground (earth) connection is required. For single phase ACpower 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 andMCU 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 usedbatteries 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 isnot must in case there is no external alarm port.


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3.4.6 CONNECTION BETWEEN PC AND EQUIPMENT

The below shows the connection:

RS 232

GSMNetwork/PSTN

WirelessBuild-inGSM

Modern

Realizeremote

monitor

LocalMonitoring

Wire/WirelessModem

Monitoring Center

RS232 cable

Figure7: 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 outputconnector 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 allocationand definition. Pin numbering are shown looking-into the connector on the enclosure.

21

6 7

3 54

Figure 2: Pins Allocation for EXT_ALM Port

Pin number 1 2 3 4 5 6 7

Alarmdefinition

EXT.Alarm 1

EXT.Alarm 2

EXT.Alarm 3

GNDEXT.

Alarm 4Reserved Reserved

Table 1: Pin Definition of EXT_ALM Port

End of Section


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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 allconnections including ground before applying power. Do not manipulate circuits or make changes whenpower is applied:

Visually inspect the power connection within the equipment. Ensure that the power cable is correctlyand 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 2

LED 3

LED 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 GreenOperation indicator Flashes once every second to indicate normal

system operation.LED 3 Red Alarm indicator. ON = alarm; OFF = no alarm

LED 4 RedModem status indicator. Flashes during initiating, and go off after that. Ifthe indicator is continuous on then the initiating fails.

Table 2: MCU LEDs


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4.3 COMMISSIONING PROCEDURES

Perform the following procedures for system commissioning.

On line& InquiryStatus

ExternalAlarm

Yes

EnableExternalAlarmandConfigure

VoltageappliedtoEXTAlarm

SetChannelNO.

AdjustDownlinkATTandMeasure

DownlinkOutputPower

SignalInput

ExitfromOMT

RemoteConnectiontoOMC

Yes

Configure[EquipmentID]

Comm.Comfig

SelectMonitoringParameters

No

No

Test-Call

DoubleCheckNoInterferencetoBTSand

AntennaIsolationMeetsRequirements


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Commissioning Tasks Observation

1. On-line and Inquiry status

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

Click Connect button to enquire the repeaters status. Proceed ifthere 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 repeatersoperating frequency.

3. Adjust Downlink OutputPower and align donorantenna

Observe DL input power from measured value. Align the directionof 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 MonitoringParameters

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 fieldintensity and adjustservice antenna.

Use test-handset to verify field intensity within the coverage area. Ifneeded, realign the service antenna to achieve the desiredcoverage.

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

8. Verify UL gain and ensuretest call produces goodvoice quality and there isno interfering BTS

Adjust UL gain and perform test calls. Typically, the UL gain is setaround 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. Userscan calculate and determine if the repeater UL noise will interferewith the BTS.

5. Verify again that there is no unacceptable interference to BTS.

Table 3: Commissioning

End of Section


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5 OMT

The equipment can be monitored and controlled by OMT software running on a local PC with localcommissioning 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, forthe 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 networkis 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 [Localconnection 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


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5.1.2 REMOTE CONNECTION TO OMT

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

Figure 10: Remote Connection

Config: Enter the correct phone number (Users don't have to enter the password) and click connect, itwill 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 equipmentto the OMT. Successful connection will be indicated by a message Online Ok and equipmentparameters can be read and/or set.

Users can configure the parameters, and then offset the parameters according to desired coverage leveland interference to other BTS signals.

OMT parameters include: Common Information, RF Information, Alarm Information, and PropertiesInformation.

Figure 11: OMT Main Window


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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 toprotect PA in operation.

Figure 12: Switch

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

Self-oscillation control switch: if the repeater cant oppose the oscillation, and the switch is on, therepeater 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.


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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 systemgain.

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.


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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 thethreshold 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 includeMaster 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


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Figure 18: External Alarm

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

Notice: [Enable] box is to enable the alarm monitoring for system. Only if users enable the alarmby 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 turnsRED; while it is OFF when normal working. On the OMT/OMC window, [Alarm Status] indicator keepsGREEN 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, andSite 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 eightcharacters 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 ofeach Master/ Slave Unit and is a hexadecimal string of two characters in therange 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 SubID 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


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5.4.2 COMM. CONFIG

If the equipment is to be monitored by OMC software over wireless GSM / CDMA network, users mustfinish the [Comm. Config.] in the next step.

The Comm. Config information requires to be manually entered by users after successful connection tothe 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 enableor disable the Phone Number Authentication feature. Refer to [Phone No.] indetails.

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

Phone No. This is designed for authentication purpose when remote connection viamodem is required. It is the phone number to dial the equipment. Only thephone number pre-defined in this field, will it be allowed to dial theequipment. It is required to manually enter the phone number. Up to 5 phonenumbers are allowed. The use of phone number authentication can avoidunauthorized use of the OMT. In addition, it can prevent the equipmentreceiving piles of spam short messages, thus help the operator greatlyreduce the cost.

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


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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


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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


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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 factoryfacilities. It is, therefore, the policy of Comba whereby faulty units or modules are returned to the localagent for repair.

To enable an efficient, prompt after sales service to be provided for the diagnosis, repair and return ofany 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 protectionand a Repair Material Authorization (RMA) should be completed giving the required information. Asample RMA form is provided in Appendix.

This request must be included with the item for repair. Items for repair should be sent to the nearestComba office:

COMBA TELECOM LTD.

Hong Kong OfficeAddress: 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 OfficeAddress: No. 1 Kaki Bukit View, #02-10 Techview, Singapore 415941Tel: + 65 6345 4908 Fax: + 65 6345 1186

Thailand OfficeAddress: 240/34 Ayothaya Tower 18th Floor, Ratchadapisek Road, Huaykwang, Bangkok 10320,ThailandTel: +66 2274 1618-9 Fax: +66 2274 1620

India OfficeAddress: Suite No. 2, E-172, TSH House, Greater Kailash I, New Delhi 110 048, IndiaTel: + 91 11 4173 9997 / 8 Fax: + 91 11 4173 9996

Sweden OfficeAddress: Gustavslundsvagen 147, S- 167 51 Bromma, Stockholm, SwedenTel: +46 8 25 38 70 Fax: +46 8 25 38 71

Brazil OfficeAddress: Avenida Engenheiro Luiz Carlos Berrini 1297, cj 122, 04571-090 Brooklin Novo, So Paulo,

Brazil

Tel: +55 11 35093700 Fax: +55 11 35093720

Dubai OfficeAddress: P.O. Box 450583, DUBAI, U.A.E.Tel: +971 0 4 433 5320 Fax: +971 0 4 422 6774

US OfficeAddress: Comba Telecom Inc. 2390 Bering Drive, San Jose, CA 95131, USATel: +1 408 526 0180 Fax: +1 408 526 0181

China OfficeAddress: No.10, Shenzhou Road, Guangzhou Science City, Guangzhou, ChinaTel: + 86 20 2839 0000 Fax: + 86 20 2839 0136


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7.3 APPENDIX C: RMA (RETURN MATERIAL AUTHORIZATION) FORM

End of Section

End of Document

90387808-USER-MANUAL-FOR-RX-8123-COMBA (1)

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