gsm micro repeater user manual

GSMGSMGSMGSM MicroMicroMicroMicro RepeaterRepeaterRepeaterRepeater

UserUserUserUser ManualManualManualManual

Model:Model:Model:Model: AC3020-G019AC3020-G019AC3020-G019AC3020-G019

SunwaveSunwaveSunwaveSunwave CommunicationsCommunicationsCommunicationsCommunications Co.,Co.,Co.,Co., Ltd.Ltd.Ltd.Ltd.

SUNWAVE GSMMICRO User Manual

Sunwave Communications Co., Ltd. 2

TableTableTableTable ofofofof ContentContentContentContent

ABBREVIATIONABBREVIATIONABBREVIATIONABBREVIATION............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3333

SAFETYSAFETYSAFETYSAFETY WARNINGSWARNINGSWARNINGSWARNINGS........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4444

1.1.1.1. INTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTION........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5555

SSSSYSTEMYSTEMYSTEMYSTEM OOOOVERVIEWVERVIEWVERVIEWVERVIEW.....................................................................................................................................................5PPPPRODUCTRODUCTRODUCTRODUCT CCCCLASSIFICATIONLASSIFICATIONLASSIFICATIONLASSIFICATION.........................................................................................................................................6FFFFEATURESEATURESEATURESEATURES....................................................................................................................................................................6

2.2.2.2. INSTALLATIONINSTALLATIONINSTALLATIONINSTALLATION &&&& CONNECTIONCONNECTIONCONNECTIONCONNECTION................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................8888

PPPPANELANELANELANEL IIIINTRODUCTIONNTRODUCTIONNTRODUCTIONNTRODUCTION................................................................................................................................................ 8EEEEQUIPMENTQUIPMENTQUIPMENTQUIPMENT IIIINSTALLATIONNSTALLATIONNSTALLATIONNSTALLATION......................................................................................................................................... 8CCCCONNECTIONONNECTIONONNECTIONONNECTION............................................................................................................................................................. 10

3.3.3.3. INITIALIZATIONINITIALIZATIONINITIALIZATIONINITIALIZATION.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 11111111

PPPPOWEROWEROWEROWER ONONONON.................................................................................................................................................................11LEDLEDLEDLED........................................................................................................................................................................... 11SSSSYSTEMYSTEMYSTEMYSTEM SSSSETETETET UPUPUPUP........................................................................................................................................................ 11

4.4.4.4. MICROMICROMICROMICRO FUNCTIONSFUNCTIONSFUNCTIONSFUNCTIONS.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 12121212

BBBBLOCKLOCKLOCKLOCK DDDDIAGRAMIAGRAMIAGRAMIAGRAM...................................................................................................................................................... 12MMMMODULEODULEODULEODULE SSSSTRUCTURETRUCTURETRUCTURETRUCTURE............................................................................................................................................... 13CCCCABLEABLEABLEABLE CCCCONNECTIONONNECTIONONNECTIONONNECTION LLLLISTISTISTIST........................................................................................................................................ 15

5.5.5.5. OMTOMTOMTOMT INSTALLATIONINSTALLATIONINSTALLATIONINSTALLATION................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................16161616

HHHHARDWAREARDWAREARDWAREARDWARE RRRREQUIREMENTEQUIREMENTEQUIREMENTEQUIREMENT.......................................................................................................................................16IIIINSTALLATIONNSTALLATIONNSTALLATIONNSTALLATION SSSSTEPSTEPSTEPSTEPS................................................................................................................................................ 16

6.6.6.6. SYSTEMSYSTEMSYSTEMSYSTEM CONFIGURATIONCONFIGURATIONCONFIGURATIONCONFIGURATION................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................17171717

OOOOPERATIONPERATIONPERATIONPERATION PPPPREPARATIONREPARATIONREPARATIONREPARATION........................................................................................................................................17OMTOMTOMTOMT CCCCONNECTIONONNECTIONONNECTIONONNECTION................................................................................................................................................... 17RRRREMOTEEMOTEEMOTEEMOTE CCCCONNECTIONONNECTIONONNECTIONONNECTION.............................................................................................................................................. 21

7.7.7.7. MAINTENANCEMAINTENANCEMAINTENANCEMAINTENANCE........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................22222222

MMMMAINTENANCEAINTENANCEAINTENANCEAINTENANCE ANDANDANDAND RRRREPAIREPAIREPAIREPAIR NOTESNOTESNOTESNOTES......................................................................................................................... 22EEEEMERGENCYMERGENCYMERGENCYMERGENCY MMMMEASURESEASURESEASURESEASURES.......................................................................................................................................... 22TTTTROUBLESHOOTINGROUBLESHOOTINGROUBLESHOOTINGROUBLESHOOTING GUIDEGUIDEGUIDEGUIDE....................................................................................................................................... 22

8.8.8.8. APPENDIXAPPENDIXAPPENDIXAPPENDIX I:I:I:I: TECHNICALTECHNICALTECHNICALTECHNICAL SPECIFICATIONSPECIFICATIONSPECIFICATIONSPECIFICATION............................................................................................................................................................................................................................................................................................................................................................................................................24242424

GSM MICRO TECHNICAL SPECIFICATION.............................................................................................................. 24



AbbreviationAbbreviationAbbreviationAbbreviation

AbbreviationsAbbreviationsAbbreviationsAbbreviations wouldwouldwouldwould bebebebe usedusedusedused inininin thisthisthisthis manual:manual:manual:manual:

AC Alternating CurrentACPR Adjacent Channel Power RatioAGC Automatic Gain ControlALC Automatic Level ControlBS Base StationBTS Base StationCDMA Code-Division Multiple AccessCPU Central Processing UnitCW Continuous Wave RadarDC Direct CurrentDCS Digital Cell SystemEMC Electro Magnetic CompatibilityGSM Global System For Mobile CommunicationHW HardwareLED Low Emitting DiodeIF Intermediate FrequencyLNA Low Noise AmplifierMODEM ModemMS Mobile SystemMTBF Mean Time Between FailureMTTR Mean Time To FailuresOMT Operation Maintenance TerminalOP Optic FiberPA Power AmplifierPHS Personal Handyphone SystemPLL Phase Locked LogicRepeater RepeaterRX Receive PortRF Radio FrequencySAGEM SAGEM in FranceSUNWAVE Sunwave Communications Co., Ltd.TDMA Time Division Multiple AccessTX Transmit PortUPS Uninterrupted Power SystemVCO Vector Controlled OscillatorWCDMA Wideband Code-Division Multiple Access



SafetySafetySafetySafety WarningsWarningsWarningsWarnings

1. MICRO Repeater receives and amplifies signal from donor BTS and distributes it to the

mobile station through antennas in indoor coverage systems. MICRO Repeater also receives and

amplifies signal from mobile station in indoor coverage systems, and distributes it to BTS. MICRO

Repeater is designed for this application only. Outdoor repeater must be placed at a safe position to

avoid possible damages caused by its falling down. Users are not supposed to maintain or replace

components, which may cause irrevocable damages to repeater. Laser is destructive to eyes, so

please do not place optic fiber direct to the eyes.

2. Repeater must follow system requirements with proper grounding & thunder-proof

facilities. Power supply voltage must satisfy safety requirements. Anybody who operates repeater

must cut off power supply first. Only certified maintenance staff can operate with power-on.

3. Repeater radiates electromagnetic wave, which will cause damage to human body.

People other than maintenance staff please keep away.

4. Electro-Static Discharge can't injure human body but may damage the key components of

repeater if dealt improperly. Most of parts on PCB are vulnerable to static. Unless have to, do not

touch PCB and the conductors without insulator. If have to, please take ESD protection measures or

touch the repeater cabinet first. Keep clothing away from PCB or the conductors without insulator.

Use ESD bag to protect PCB.

5. MICRO Repeater must be away from fire, as electronic components may explode upon

fire.

6. Co-axial Cable insulator is made from polytetrafluoroethylene, which will emit hydrogen

fluoride when heated. Do not use heating tools to remove the insulator layer. Standby battery is Ni-

battery. Please put battery to professional recycling site.



1.1.1.1. IntroductionIntroductionIntroductionIntroduction

SystemSystemSystemSystem OverviewOverviewOverviewOverview

In cellular mobile communication systems, due to geographical factors, there will be shadow area in

BTS signal transmission, which seriously affects normal communication. To solve this problem,

installation of repeaters is an ideal solution for network optimization.

SUNWAVE GSM MICRO is a dual-direction signal amplifier, which effectively enhances the signals in

shadow areas caused by terrestrial irregularity & buildings, as well as places where BTS signal

cannot reach. Sunwave GSM MICRO is designed for GSM network signal coverage, which is

applicable to subway, underground shopping malls, amusement parks, hospitals, office buildings, etc.

Sunwave GSM MICRO adopts modularized design. It boasts of many advantages such as small size,

low weight, easy installation, high stability, low power consumption, low system noise, etc.



ProductProductProductProduct ClassificationClassificationClassificationClassification

Remarks:

GSM MICRO repeater uses 220VAC power supply.

FeaturesFeaturesFeaturesFeatures

�� ComComComCompletepletepleteplete PPPProductroductroductroduct RangeRangeRangeRangeWith its abundant experience in RF engineering, Sunwave have developed a complete range of

repeaters include band selective, channel selective, fiber optical, and frequency translating products.

The products cover all frequency bands in mobile communication, including GSM, DCS, TETRA,

GSM-R, etc.

�� ExcellentExcellentExcellentExcellent RFRFRFRF PPPPerformanceerformanceerformanceerformanceSunwave repeaters’ optimized RF design ensures a transparent and trouble-free up and down link

RF path through the delicacy of balancing & control over parameters like noise figure, up/downlink

power output and link budget, out of band rejection, self-oscillation, ACPR, IMD3, ρ, and time delay

etc.

�� MechanicalMechanicalMechanicalMechanical DesignDesignDesignDesignThe self-developed aluminum die cast cabinet is ideal for tough weather conditions. Cabinet cooling

undergoes heat simulation tests, which proves that Sunwave Micro can achieve excellent heat

distribution with small size. Uplink & downlink RF circuit is module-designed with high accuracy in

dimension; the surface is conductive-oxidation treated with good conductivity and erosion resistance.

The module complies with all EMC requirements. Sunwave repeater conforms to indoor & outdoor

requirements.

�� RemoteRemoteRemoteRemote ControlControlControlControl &&&& MonitoringMonitoringMonitoringMonitoring OptionsOptionsOptionsOptionsRemote control module is the core part of remote control, which has 3 functions: parameter

configuration, data query & alarm processing. There is standby battery so system may continue to

work when power supply is off. System will send power-off alarm.

OutputOutputOutputOutputPowerPowerPowerPower MODELMODELMODELMODEL BandwidthBandwidthBandwidthBandwidth ProductProductProductProduct DescriptionDescriptionDescriptionDescription OperatingOperatingOperatingOperating

FrequencyFrequencyFrequencyFrequency

19dBm AC3020-G019 7.5MHzGSM MICRO Repeaterwith remote control andmonitoring function

UL: 897.5~905MHz;DL: 942.5~950MHz



�� NetworkNetworkNetworkNetwork ManagementManagementManagementManagement CenterCenterCenterCenterNetwork Management Center provides high quality Network Management System (NMS).

Communication Protocol complies with mobile operator standard. Its user-friendly interface,

advanced structure & unique communication mode facilitate user management.

�� ProductProductProductProduct ReliabilityReliabilityReliabilityReliabilityAll components are industrial-level with operating temperature range at -40~+85°C, to ensure booster

reliability. The power supply is with redundancy-design so that power supply module works with load

normally at 75℃; starts normally at -30℃. MTBF is no less than 50000 hours.



2.2.2.2. InstallationInstallationInstallationInstallation &&&& ConnectionConnectionConnectionConnection

PanelPanelPanelPanel IntroductionIntroductionIntroductionIntroductionSunwave GSM MICRO dimension is 320*220*125 mm and 5 Kg in weight.

The panel of MICRO (with OMC function) case is shown as below Figure 2-1.

� MS: N-F, connect to Service Antenna Port;

� BS: N-F, connect to Donor Antenna Port;

� Power Supply: connect to AC220V power supply;

� POWER: Power Supply Indicator;

� ALARM: Alarm Indicator;

� GND: Grounding port.

BS MSPOWER ALARM

220VAC

GND

Figure 2-1

EquipmentEquipmentEquipmentEquipment InstallationInstallationInstallationInstallationIt is usually wall mounting.

To choose a proper site:

� Make sure access is restricted to qualified personnel;

� Install the product where power supply and feeder cable are accessible;

� Site location should be far away from heat source and damp environment;

� The place of installation shall be at least 2 M vertically away from the ground.

Installation Steps:

� Use the plastic wall plug in the carton to fix the installation bracket onto the wall as Figure 2-

2 and 2-3.



Figure 2-2 Installation Bracket Size

Figure 2-3 Installation Bracket Fixing

� Put the #2 case into the installation bracket, and tighten the bolts with the installation

bracket inside the repeater case shown as Figure 2-4.

Figure 2-4 #2 Case Appearance Structure

� Connect the RF cables, power supply and data cable.



ConnectionConnectionConnectionConnection

PanelPanelPanelPanel Connection:Connection:Connection:Connection:See Figure 2-1 for interfaces, including MS interface, BS interface, power supply interface, USB

interface and LED.

PowerPowerPowerPower SupplySupplySupplySupply ConnectionConnectionConnectionConnection::::GSM MICRO is configured with interior power supply module and the 220VAC power cord has

connected the plug. Before connecting to the AC220V power supply, connect the AC port with the air

switch, and then connect to remote power.

RFRFRFRF Co-axialCo-axialCo-axialCo-axial CableCableCableCable ConnectionConnectionConnectionConnection::::The RF input/output GSM MICRO connector is N type. Connect N type connectors to Rx/Rx antenna

by N type RF cable.

USBUSBUSBUSB CableCableCableCable Connection:Connection:Connection:Connection:The GSM MICRO can be configured by RS232 interface on ARM board. It is mainly used for repeater

query and parameter setting of local connection. When connecting, open the repeater door, and use

the RS232 cable to connect the RS232 interface on ARM board.



3.3.3.3. InitializationInitializationInitializationInitialization

Before power on GSM MICRO, please read the safety warnings carefully. Make sure installation is

reliable; connection cable is well done; power supply cable is well connected; the voltage of power

supply complies with the claimed voltage in GSM MICRO. After the aforesaid examination is done,

user can power on GSM MICRO.

PowerPowerPowerPower ononononGSM MICRO has no power supply switch. An air switch can be added in front of the power supply for

protection.

LEDLEDLEDLEDThere are POWER and ALARM LED lights on the panel of GSM MICRO. After power-on, there will

be CPU self-test for 2 seconds, where the green/red/yellow LED flashes alternatively and then the

green light is on. The green light on means GSM MICRO works normally; the red light is on means

that there is alarm. See the following table:

SystemSystemSystemSystem SetSetSetSet upupupupAfter power on, there might be alarm or limit indication. Necessary actions shall be done to remove

the alarm or limit indication. If the green light is on, it means the GSM MICRO is at normal working

status.

Status ALARM LED POWER LED

Green Normal, No alarm Normal

Red Alarm Normal

Yellow Downloading the software

No Color No power supply or power supply defectiveRed/Yellow/Green LEDflashes alternatively Power on or CPU self-test



4.4.4.4. MICROMICROMICROMICRO FunctionsFunctionsFunctionsFunctionsGSM MICRO is a dual direction RF amplification device. BTS downlink signal reaches GSM MICRO

through outdoor Rx antenna, after signal amplification through GSM MICRO, the amplified signals are

transmitted to indoor coverage antenna systems to the target coverage area. Uplink signals from

mobile stations go through indoor coverage antennas, then amplified by GSM MICRO, then

transmitted to RX antenna to BTS.

GSM MICRO is connected through donor antenna to BTS through N type co-axial cable. GSM

MICRO has wireless connection with BTS through donor antenna via N type co-axial cable. GSM

MICRO connects to MS Tx antenna with N type co-axial cable. The LED on the panel gives

indications on the working status of GSM MICRO (please refer to LED section).

BlockBlockBlockBlock DiagramDiagramDiagramDiagram

Figure 4-1



ModuleModuleModuleModule StructureStructureStructureStructure

FGNLGND13.8V12VGND5V9V

Battery

Coupler

01

01

02

02

03

03

04

04

050607

08

05

06 07

08

10

10

1111

12

12

BS

MS

PowerSupply

CPU

Figure 4-2

Table 4-1: Module ListNo. Module Name Code Qty. Remarks

1 RF Module SW7820159C 1

2 Coupler SWCP-3720B 1

3 CPU SW7820104E 1

4 MODEM Board SW7820115D 1

5 Power Supply LMAD033M9-4C1 1

6 Monitoring Battery 12V1.2AH/20HR 1



�� RFRFRFRF Module:Module:Module:Module:

Including Uplink and Downlink LNA, IF, PA, RS-485 interface, LNA malfunction detection, PA current

detection, LNA switch, Output power and reflection power detection, Gain setting, Amplitude limiting

and detection, PLL control and detection, Temperature detection, Frequency compensate and

temperature compensate, PA switch and so on.

�� CPUCPUCPUCPU::::

Including CPU, GSM MODEM interface, LAN Ethernet interface, Power detection interface, I2C

interface, Fiber Optical 232 interface, Master-Remote 485 interface (2 ports); to control the repeater

system for Master-remote communication and communicate with OMC according to the protocol.

�� MODEMMODEMMODEMMODEM Board:Board:Board:Board:

Including the power supply interface and RS232 interface for communication with CPU; to complete

the SMS and data communication between CPU board and remote OMC.

�� PowerPowerPowerPower SupplySupplySupplySupply Module:Module:Module:Module:

To provide the power supply with requested voltage, power and quality for repeater modules.

�� Coupler:Coupler:Coupler:Coupler:

To couple the MODEM monitoring signal from donor antenna port (BS port).

�� MonitoringMonitoringMonitoringMonitoring Battery:Battery:Battery:Battery:

To supply for monitoring board when power interruption to ensure it can send power down alarm to

OMC.

app:ds:amplitude%20limiting



CableCableCableCable ConnectionConnectionConnectionConnection ListListListList

No. Cable CodeConnection Point 1 Connection Point 2

Module Port Module Port

01 SW6.640.212 CPU LED Panel POWER,ALARM

02 SW6.640.213 Power Supply CON2 CPU IO

03 SW6.640.216 CPU MODEM MODEM MODEM

04 SW6.640.368 CPU RS485 RF Module RS485

05 SW6.640.369 Power Supply CON3 (5V, GND,12V) CPU POWER

06 SW6.640.369 Power Supply CON3 (5V, GND) MODEM POWER

07 SW6.640.369 Power Supply CON3 (13.8V,GND) Battery Red, Blk

08 SW6.640.369 Power Supply CON3 (9V, GND) RF Module

09 SW6.640.370 Power Supply CON1 (L, N, FG) AC 220V Plug

10 SW6.645.526 RF Module MS Panel MS

11 SW6.645.527 RF Module BS Coupler Through port

12 MXTK88TK4000 MODEM Coupler Coupling port



5.5.5.5. OMTOMTOMTOMT InstallationInstallationInstallationInstallation

Repeater can realize the control function by Operation Maintenance Terminal (OMT). OMT can

directly set, query and shown real-time alarm information for repeater RF specifications and status

parameters. OMT can operate and maintain the equipment by local connection, wireless data and

SMS methods.

HardwareHardwareHardwareHardware RequirementRequirementRequirementRequirement

OMT software installation minimum system requirement:

� 100MHz Intel Pentium Processor

� 32M RAM

� 32M usable diskspace

� Vacant COM serial port

� Hays compatible MODEM

� Windows 95/98 or Windows NT4.0, with Service Pack 3 or higher version.

InstallationInstallationInstallationInstallation StepsStepsStepsSteps

When installation, ensure no other program operating except this system.

� Insert OMT disc and run the installation program automatically.

� If the program does not operate automatically, open the disc and choose the file

setup.exe to install.

� When the Welcome frame comes up, click “Next” button to continue installation.

� Choose your desired the installation path and click “Next”.

� Then confirm if the input information is correct. Click “Installation” for continue program

installation.

� Finally click “Complete” button to complete the program installation. The OMT software

has successfully installed to your computer.



6.6.6.6. SystemSystemSystemSystem ConfigurationConfigurationConfigurationConfiguration

In this section, the OMT operation will be introduced including OMT program and how to connect the

repeater by local and remote connection.

OperationOperationOperationOperation PreparationPreparationPreparationPreparation

To local or remote control the repeater by following steps.

LocalLocalLocalLocal Control:Control:Control:Control:

1. Power on Repeater;

2. Power on PC;

3. Using a RS232 cable to connect the PC (with OMT installed)

and MICRO repeater.

RemoteRemoteRemoteRemote Control:Control:Control:Control:

1. Connect the PC (with OMT installed) with the MODEM of

PC;

2. Power on Repeater (repeater has SIM card inside);

3. Power on MODEM and PC.

Before system configuration, please read the above all sections carefully to ensure correct operations.

Make sure that GSM MICRO is intalled, connected and powered on. Get ready a PC with OMT

software installed and USB cable.

OMTOMTOMTOMT CCCConnectiononnectiononnectiononnectionConnects GSM MICRO with USB cable, and start OMT system. See below OMT interface:



Basic parameter query & configuration:

� RF Switch status setup and query

� MICROAGCON or AGCOFF working mode set up and query

� Set MICRO uplink/downlink output power in the mode of AGCON

� Uplink/downlink attentuation setup in the mode of AGCOFF

� Uplink/downlink gain & output power query

� MICRO serial number & software version query

� Uplink/downlink operating channel setup & query; operating channel bandwidth query.

� Alarm query & enable

Click “Click here to enter the advanced interface” at the left bottom to enter OMT advanced

management mode. See below:



� Model No.: MICRO model No. provided by manufacturer.

� Serial No. set by manufacturer.

� Software Check Sum: MICRO software version check sum.

� Site No.: there is one site No. corresponding to one MICRO. Site No. can be modified

by user.

� MICRO No.: not to be modified. Software auto sets to 255.

� Lonitude/latitude: the co-ordincation value for the longitude/latitude of the site.

Unit: °, keeping 5 digits after the decimal point. User can input the information to

MICRO through OMT.

� Manufacturer Logo: the logo to differentiate from other manufacturers. Default 14.

� Type of Equipment: set by manufacturer, in this case, it is set to MICRO.

� Software version number: the version No. of the remote control software inside the

MICRO.

Click “Device Status” in the left column, as shown below:



Check the alarm enable switch, see if there are items in red. If red, this indicates some problems in

the MICRO. Click “Working parameter”, as shown below:



� Set uplink output power: set output power in the AGCON mode

� Uplink output level: the actually measured MICRO uplink output power

� Uplink attenuation: applicable to repeaters with uplink attenuation adjustment functions,

for uplink gain adjustment.

� Uplink gain: the current MICRO uplink gain.

� Uplink center frequency: the center frequency of MICRO uplink operating channel.

� Uplink operating bandwidth: uplink operating channel bandwidth

� Set downlink output power: output power set in the AGCON mode.

� Downlink output level: the actually measured MICRO downlink output power.

� Downlink attenuation: applicable to device with downlink attenuation adjustment

functions, for downlink gain adjustment.

� Downlink gain: the current MICRO downlink gain.

� Downlink center frequency: the center frequency of MICRO downlink operating channel.

� Downlink operating bandwidth: uplink operating channel bandwidth.

� PA temperature: the current operating temperature of MICRO

� AGC switch: set MICRO to AGCOFF or auto AGCON mode

� RF switch: control the power supply for RF part in MICRO.

RemoteRemoteRemoteRemote ConnectionConnectionConnectionConnectionFor repeater remote control by OMC, pls refer to the “SUNWAVE OMCUSER’s MANUAL”.



7.7.7.7. MaintenanceMaintenanceMaintenanceMaintenance

MaintenanceMaintenanceMaintenanceMaintenance andandandand RepairRepairRepairRepair notesnotesnotesnotes

� Disassembling the system

Cut off the outside air circuit breaker;

Pull out the power plug of the repeater;

Don’t operate under thundercloud;

� Cleaning

Cut off the outside air circuit breaker;

Pull out the power plug of the repeater;

Don’t clean the system with the liquid to prevent from short circuit;

Use the dry cloth.

� Grounding

Use grounding power plug (3-point plug).

� Power

Pay attention to voltage and frequency of outside power. Check whether they are compliant with

the repeater.

� Parts Replacement

Users shouldn’t repair the system or replace the parts themselves. They may get an electric

shock while disclosing the system. Only authorized specialist can implement repair and

replacement.

� Waterproofing and humidity proofing

Don’t power on/off under humid condition while the door is open.

EmergencyEmergencyEmergencyEmergency MeasuresMeasuresMeasuresMeasuresIt is suggested to turn off the repeater system under following conditions

� Power supply not working.

� Rain or liquid flow into the repeater.

� Abnormal phenomenon like overheated, peculiar smell, abnormal sundries)

� Case impaired;

� Performance fell;

� Near by fire;

� Flooded.

TroubleshootingTroubleshootingTroubleshootingTroubleshooting guideguideguideguideHow to detect failures



Check the repeater to detect the failed part of the repeater:

RepeaterFailure

Green Red Off

Alarm LED

Check antennaand cablestatus

Adjust antennaand cable until

it works

Checkrepeater statusthrough OMT

Check powersupply status

Adjust PowerSupply until it

works

Notworking

Notworking

ContactRepeaterSupplier

Ok Ok



8.8.8.8. AppendixAppendixAppendixAppendix IIII:::: TechnicalTechnicalTechnicalTechnical SpecificationSpecificationSpecificationSpecification

GSM MICRO Technical SpecificationParameterParameterParameterParameter UplinkUplinkUplinkUplink DownlinkDownlinkDownlinkDownlink

Frequency Range 897.4-905MHz 942.4-950MHz

Gain 70dB 75dB

Output Power 12dBm±2dB 19dBm±2dB

Gain Adjustment Range ≥30dB ≥30dB

Gain Step 1dB 1dB

Gain Adjustment Step Error ±1dB/(1-10dB); ±1dB/(10-20dB); ±1.5dB/(20-30dB)

ALC 12dBm±2dB or off 19dBm±2dB or off

Max. Input Power before

damage+10dBm

In band Ripple ≤ 3dBp-p

Out of Band Rejection+/-600KHz: >=30dB

+/-1MHz: >=40dB

Transmission Delay ≤5µs ≤5µs

IMDIn working band: <=-45dBc

Out of Working Band: <=-36dBm@9K~1GHz

Spurious Emission≤-36dBm/100KHz (9KHz～1GHz)

≤-30dBm/1MHz (1GHz～12.75GHz)

RF connector N-F/50Ω

Local Monitoring RS232

Remote Monitoring Inside GSM Modem, GSM SMS

Power Supply AC 220V+/-20%/45~55Hz

Working Temperature 0 - 60℃

Relative Humidity <=85%

Power Consumption ≤15W

Protection Level IP45

Dimension 320*220*125mm

Weight < 5Kg

MTBF >50000 hours

gsm micro repeater user manual

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