Andrew Wireless Innovations Group RPT-MR801 CELLULAR REPEATER User Manual M0067A0A

Andrew Wireless Innovations Group CELLULAR REPEATER M0067A0A

Users Manual for band or channel selective Repeater

User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 102-JUNE-99User’s manual forband or channel selective RepeaterMR801B Power(Id.-No. 148613)Author: Approved: QA:
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 202-JUNE-99Table of ContentsLIST OF UNIT SPECIFIC ABBREVIATIONS 6CONTENTS OF DELIVERY 9HEALTH AND SAFETY WARNING 10PREAMBLE 111INTRODUCTION 131.1 Intended purpose 131.2 About the MR801B POWER 132FUNCTIONAL DESCRIPTION 142.1 General 152.2 RF modules 152.3 Mother board 172.4 Control module SM 2009 182.5 Duplexer 192.6 Active combiner 202.7 Measuring aids 202.8 Power supply 212.9 Feed forward amplifier 223FUNCTIONS AND FEATURES 233.1 Band and channel selectivity 233.2 Gain setting 233.3 ALC 24
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 302-JUNE-993.4 BITE and alarms 243.4.1 Handling of alarms 263.4.2 Status report 273.4.3 Severity levels 284OPTIONAL EQUIPMENT 304.1 VSWR module 304.2 External alarms 304.3 Modem 324.4 Battery backup module 325SPECIFICATION 345.1 Electrical specification 345.2 Mechanical specification 365.3 Environmental and safety 365.4 External electrical interfaces 365.4.1 Electrical power 365.4.2 RF connections 375.5 External RF output 396INSTALLATION 406.1 Mechanical installation 416.2 Electrical installation 446.2.1 Grounding 446.2.2 Power connection 456.2.3 Connection of the antenna cables 457SETTING TO WORK 467.1 Preparation 467.2 Setting of operational parameters 477.2.1 Manual settings by means of rotary switches 477.2.2 Settings via personal computer as terminal 497.2.3 Settings via modem 52
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 402-JUNE-998TROUBLE SHOOTING 538.1 Error indication 538.2 Boot process 538.3 Alarm monitoring with the STATUS HIST command 548.4 Power supply 548.5 General remarks 549MAINTENANCE 559.1 General 559.2 Replacement of the fuses (mains) 559.3 Replacement of the power supply fuse 569.4 Replacement of the mains cable 569.5 Replacement of the RAM / RTC battery 579.6 Replacement of the dummy battery backup module 589.7 Replacement of duplexers 599.8 Replacement of RF modules 609.9 Replacement of the control module SM 2009 629.10 Replacement of power supplies 639.11 Replacement of active combiner modules 649.12 Replacement of feed forward amplifiers 65
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 502-JUNE-9910 SPARE PARTS LIST 6811 APPENDIX 7011.1 Installation drawing of the Repeater 7011.2 Top view of the Repeater (left side , one channel configuration) 7111.3 Top view of the Repeater (right side, one channel configuration) 7211.4 One channel configuration – cabling and block diagram 7312 INDEX 75
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 602-JUNE-99LIST OF FIGURES AND TABLEStable 1-1 List of international sales offices............................................................................12figure 2-1 Block diagram of MR801B Power .......................................................................14figure 2-2 Top view of an RF module...................................................................................16figure 2-3 Top view of a mother board .................................................................................17figure 2-4 Top view of the control module............................................................................18figure 2-5 Top view of the duplexers....................................................................................19figure 2-6 Top view of the active combiner module..............................................................20figure 2-7 Mounting position of power supplies....................................................................21figure 2-8 ON / OFF position of external switch...................................................................22figure 2-9 Top view of the feed forward amplifier ................................................................22figure 3-1 Position of rotary switches ...................................................................................23figure 3-2 Position of failure LEDs.......................................................................................24figure 3-3 Status hist report ..................................................................................................25table 3-4 List of all available alarms .....................................................................................26figure 3-5 Example of a GET1 report ...................................................................................27figure 3-6 Example of a STATUS report ..............................................................................28figure 4-1 Clamps for external alarms...................................................................................30figure 4-2 Cable configuration and installation position........................................................32figure 4-3 Mounting position of batteries..............................................................................33figure 5-1 Screw terminal for mains cable............................................................................37figure 5-2 Connector panel layout ........................................................................................37figure 5-3 Position of external RF output..............................................................................39figure 6-1 System description...............................................................................................40figure 6-2 Wall mounting brackets .......................................................................................42figure 6-3 Clearance distance................................................................................................43figure 6-4 Grounding kit.......................................................................................................44figure 6-5 Screw terminal .....................................................................................................45table 7-1 LED indication ......................................................................................................46figure 7-2 Position of the DIP-Switch 1................................................................................47figure 7-3 Position of the rotary switches..............................................................................48figure 7-4 Rotary switches and label.....................................................................................49table 7-5 DIP-switch configuration.......................................................................................49figure 7-6 DIP-switch 2 for local mode.................................................................................50table 7-7 List of AT commands ............................................................................................52figure 9-1 Top view of the Repeater .....................................................................................55figure 9-2 Fuse terminal .......................................................................................................56figure 9-3 Position of power supply fuse...............................................................................56figure 9-4 Position of RAM/RTC battery.............................................................................58figure 9-5 Position of dummy battery backup module...........................................................59figure 9-6 Cable configuration of the duplexers....................................................................60figure 9-7 Connector panel layout ........................................................................................60figure 9-8 Top view of an RF module...................................................................................61figure 9-9 Position of hex coded rotary switches...................................................................62table 9-10 Address of synthesizer .........................................................................................62
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 702-JUNE-99figure 9-11 Position of control module .................................................................................63figure 9-12 Power supply......................................................................................................63figure 9-13 Position of special-nut M4..................................................................................64figure 9-14 Position of counter sunk screws on active combiner ...........................................65figure 9-15 Position of the feed forward amplifier reset board ..............................................66figure 9-16 Position of feed forward amplifiers (4-channel Repeater)...................................67table 10-1 Spare parts list .....................................................................................................69figure 11-1 Installation drawing of the Repeater...................................................................70figure 11-2 Top view of the Repeater (left side, one channel configuration)..........................71figure 11-3 Top view of the Repeater (right side, one channel configuration) .......................72figure 11-4 Cabling of one channel Repeater........................................................................73figure 11-5 Block diagram of one channel Repeater .............................................................74
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 802-JUNE-99LIST OF UNIT SPECIFIC ABBREVIATIONSALC Automatic Level ControlBCCH Broadcast Control ChannelBITE Built In Test EquipmentBTS Base Transceiver StationDL DownlinkETS European Telecommunication StandardFFwd Feed Forward AmplifierId.-No. Ident NumberI²C-Bus Inter Integrated Circuit Bus ( Philips )LMT Local Maintenance TimeoutMR MIKOM RepeaterOMC Operation and Maintenance CentrePABX Private Automatic Branch ExchangePCMCIA Personal Computer Modem Communication International AssociationPSTN Public Switched Telephone NetworkRev RevisionRF Radio FrequencyRLP Radio Link ProtocolRSSI Receive Signal Strength IndicationRTC Real Time ClockSDA Serial Data Line of I²C-BusSCL Serial Clock Line of I²C-BusUL UplinkUPS Uninterruptable Power SupplyVSWR Voltage Standing Wave Ratio
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 902-JUNE-99CONTENTS OF DELIVERYQty 1Repeater MR801B PowerQty 1User’s manual for Repeater MR801B Power ( Id.-No. 151111 )Qty 1Assembly guide for modification kitsQty 1Set of test protocols consisting of an electrical acceptance test protocoland a safety test protocol applying to the power supplyQty 1Spare parts kit containing:- 1 control cable RS232,- 1 hex socket key, size 2.5- 1 Torx key- 5 socket head cap screws M3.0 x 30- 2 tallow-drop screws TRX M5.0x25- 2 tallow-drop screws M2.0x6- 2 tallow-drop screws M3.0x5- 4 straight pins 3.0 x 25- 3 captive washers for M5- 4 Tyraps- 3x5g Silicon heat conducting paste- 1 hex socket screw key , size 4, long- 4 nuts- 2 fuses 8 A type MT- 5 socket head cap screws M3.0x20- 2 countersunk head screw M3.0x20- 4 special nuts M4Qty 1Wall mounting kit- 2 mounting brackets- 4 washers for M8- 4 socket head cap screws M8.0x16- 2 tire boltsQty 1Wall mounting sheet
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 10 02-JUNE-99HEALTH AND SAFETY WARNINGSF Note: The electrical installation has to be performed in accordance with the safetyregulations of the local authorities. Due to safety reasons the electricalinstallation must be performed by qualified personnel. The cover of this unitshould not be opened while power is applied. Subsequent installation,commissioning and maintenance activities that require the unit to bepowered with the cover open shall only be carried out by suitably qualifiedpersonnel.F Note: The grounding of the Unit has to be performed by all means. A groundingbolt is provided at the cabinet in order to connect the earth bonding cable.F Note: The Unit is heavy-weight. Make sure that a suitable mounting surface isused. Only adequate manpower is allowed to handle the system.F Note: ESD precautions have to be observed! Before maintenance work use theavailable grounding system to connect ESD protection measures.F Note: Due to power dissipation the Repeater may heat up the air volume inside thecabinet and reach a very high temperature. Therefore the Repeater must bemounted in the vertical plane to a wall or a mast without additionalenclosure to provide sufficient ventilation. Between the housing and the walla minimum distance must be kept in order to provide air circulation.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 11 02-JUNE-99PREAMBLEIn cellular systems, Repeaters are used to enhance the influence of a base station in regionswhere, due to topological conditions, poor field strengths disable communication. MIKOM isa leading manufacturer of Repeaters. They provide excellent electrical characteristics, they arelight-weight and easy to install. Hence, the MIKOM Repeater is the preferred solution.Your Repeater has been built using high reliable materials. A comprehensive qualityassurance has been applied to all fabrication steps. This secures constant quality of theproduct. Every Repeater leaves the factory only after a thorough final acceptance test,accompanied by a test certificate, which warrants perfect function. The acceptance testcertificate is subject of the delivery, and it is fixed to the Repeater lid in order to provide aquick reference for the user.Any intervention has to be performed by authorized persons only. If you need technicalassistance with the Repeater MR801B Power contact your local sales office ( see table 1-1List of international sales offices ) or MIKOM directly at the following address:Under consideration of all references given in this manual, the Repeater should be taken intoservice without any complications and should operate trouble-free for a long time.MIKOM GmbHIndustriering 1086675 BuchdorfGermanyTel: +49 (0) 9099 6 90Fax: +49 (0) 9099 69 31email: sales@mikom.comhttp://www.mikom.com
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 12 02-JUNE-99LIST OF INTERNATIONAL SALES OFFICESAllen Telecom Allen Telecom ( Australia )P/L Forem France30500 Bruce Industrial Parkway PO Box 903 Z.I. des EbisoiresCleveland, Ohio 44 139-3996 Bankstown NSW 2200 78370 PlaisirUSA Australia FrancePhone: +1 ( 216 ) 349-8657 Phone: +61 ( 2 ) 9793-9644 Phone: +33-1-30-79-15-30FAX: +1 ( 216 ) 349-8408 FAX: +61 ( 2 ) 9793-9747 FAX: +33-1-30-55-55-37FOREM S.p.A. AT Singapore AT ChinaVia Archimede N. 22/24 80 Marine Parade Road CITIC Building, # 11-0520041, Agrate Brianza #19-1 Parkway Parade 19 Jiangguomenwai AvenueMilan Singapore 449269 BeijingItaly China 100004Phone: +39-39-605-41 Phone: +65-345-8022 Phone: +86-10-6508-3088FAX: +39-39-605-4477 FAX: +65-345-8033 FAX: +86-10-6508-3066AT Canada FOREM UK AT Hong Kong1815 Ironstone Manor, # 12 Unit DCastle Industrial Park 1603 Remington Certer,23 Hung to road,Pickering, Ontario L1W 3W9Canada Pear Tree LaneNewbury, Berkshire Kwun Tong, Kow LoonHong KongU.K. RG 14 2EZPhone: +1 ( 905 ) 839-3474 Phone: +44-1635-569-695 Phone: +852-2389-1844FAX: +1 ( 905 ) 839-4663 FAX: +44-1635-569-463 FAX: +852-2389-4864AT IndiaB-256 Ground Floor.Chittaranjan ParkNew Delhi 110019Phone: +91-11-696-3918FAX: +91-11-652-1648table 1-1 List of international sales offices
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 13 02-JUNE-991 Introduction1.1 Intended purposeCellular telephone systems transmit signals in two directions between base stations andmobile telephones within the signal coverage area.If weak signal transmissions occur within the coverage area because of indoor applications,topological conditions or distance from the transmitter, a Repeater is used to extendtransmission range. In the downlink path the Repeater picks up the signal from a donorantenna of an existing cell, amplifies and re-transmits it into the desired dark spot. In theuplink direction the Repeater receives signals from mobile stations present in its coveragearea and re-transmits them to the corresponding base station.1.2 About the MR801B POWERMIKOM’s MR801B POWER is available as a band or channel selective repeater for CDMA,TDMA and analog networks.This repeater bi-directionally amplifies signals between multiple mobiles and a single basestation in the AMPS 800 frequency band. It is employed where poor topological conditionscause weak field strengths. It can provide highly selective amplification of band segments orchannels in the AMPS 800 band.MR801B POWER modules can be combined with other repeater modules in order to create amulti-band repeater system. Modules operating in PCS1900, GSM1800, GSM900, or iDENbands are available. When different modules are combined a common antenna and controlinterface are available.The MR801B POWER can be set-up locally or remotely. A PCMCIA slot for modemoperation is an available option. The repeater has a large number of functions that can bemonitored and changed by the operators via a terminal emulation program or the MIKOMOMC software platform. An easy to understand and simple to learn communication languageis available to help the operator query status reports from the repeater or to change settings.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 14 02-JUNE-992 Functional descriptionThe Repeater MR801B Power can be equipped from one to four bands or channels.The following block diagram shall illustrate the configuration of the system.*: one physical module contains UL and DL**: with more than two channels, the amplifiers are included; both are in one housingfigure 2-1 Block diagram of MR801B Power
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 15 02-JUNE-992.1 GeneralThe Repeater consists of two amplifier chains, which are connected antiparallel. Thereceive path of one direction is connected to the transmit path of the other direction by afrequency separation unit, in the following denominated as a duplexer, which combinesboth signals to an antenna (See chapter 2.5).After the duplexer the signals get to a pre-amplifier and afterwards to an RF module (Seechapter 2.2). Then the signals are combined by the active combiner (See chapter 2.6) andafterwards amplified by the feed forward amplifier (See chapter 2.9), which provides therequired output power.After the final amplifier a power detection measures the output power and controls thegain. This is called Automatic Level Control (ALC) and keeps intermodulations below anadjustable value. Finally, the signals are fed to the built-in antenna of the Repeater.2.2 RF modulesThe task of the RF modules is to amplify the receive signals and to convert them into anintermediate frequency. The signals, then, proceed a filter stage comprising of highly selectivefilters, and run through a digital controllable attenuator. The attenuation can be set in steps of2 dB, locally or remotely. By using the same synthesizer frequency, that was used to convertthe signals down to intermediate frequency, the intermediate frequency is mixed up to theoriginal frequency.The synthesizer is controlled via an I²C-Bus. In case of a breakdown in mains, gain andfrequency data are non-volatile stored in an EEPROM on board.See figure 2-2 Top view of an RF module for an exemplary channel or band module.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 16 02-JUNE-99figure 2-2 Top view of an RF module
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 17 02-JUNE-992.3 Mother boardThe function of the mother board is the communication between the RF modules and thecontrol module via the I²C-Bus.In the three and four channel configuration of the Repeater there is a mother board on the leftand on the right side, whereas in the one and two channel configuration there is only onemother board implemented on the right side of the Repeater.Mother boards are located underneath the RF modules.figure 2-3 Top view of a mother board
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 18 02-JUNE-992.4 Control module SM 2009The control module SM 2009 is a DOS compatible micro computer. The wholecommunication between the operator and the Repeater can be done via the control module. Byusing either the RS232 interface in connection with a modem card and a mobile the Repeatercan be controlled remotely or locally by using a VT100 terminal, i.e. a PC emulating theVT100 terminal.Frequency and gain, power down of RF stages and ALC can be controlled and statusmessages can be received remotely. In case a modem or a mobile is connected, automaticalarm messages can be received.The data transfer between the control module SM 2009 and the mother board is realized bythe I²C-Bus system.The I²C-Bus concept was developed by Philips for the serial connection of integrated circuitswithin one device. Two wires, SDA - serial data and SCL - serial clock, carry informationbetween the devices connected to the bus. Each device is recognized by a unique address andcan operate either as transmitter or receiver.All MR801B Power configuration parameters are stored in an EEPROM on the controlmodule if a power supply failure occurs.figure 2-4 Top view of the control module
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 19 02-JUNE-992.5 DuplexerThe task of the duplexer is to isolate uplink from downlink, i.e. isolate transmit path fromreceive path. The pass bandwidth of the duplexer is the entire width of the uplink band andthe downlink band.UL frequency DL frequency824 - 849 MHz 869 - 894 MHzDuplexer with connector to mobile sideDuplexer with connector to BTS sidefigure 2-5 Top view of the duplexers30 dBcoupler30 dBcoupler20 dBcoupler
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 20 02-JUNE-992.6 Active combinerAfter passing through the RF modules, the signals will be combined by the active combinermodule in the UL and in the DL path. The active combiner will be followed by the feedforward amplifier.figure 2-6 Top view of the active combiner module2.7 Measuring aidsWith built-in RF probes test signals can be applied or detected. The probes provide a couplingfactor of 30 dB respectivly 20 dB. Each duplexer (uplink and downlink) is equipped with one30 dB coupler, the UL Input duplexer additionally with a 20 dB coupler for a modem ormobile (See chapter 4 Optional equipment). This facilitates measurements under alloperational conditions, while an antenna or a dummy load may be connected.The position of the couplers on the duplexers is shown in figure 2-5 Top view of theduplexers.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 21 02-JUNE-992.8 Power supplyFor the MR801B Power four power supplies are necessary.Power supplies are available with different mains power. See list below for available powersupplies.• 115 VAC ± 15% / 40 - 65 Hz• 230 VAC ± 15% / 40 - 65 Hz• 185 - 320 VAC / 40 - 65 Hz• 24 VDC• 42 to 60 VDC• 80 to 130 VDCThe following figure shows the mounting position of the power supplies in the MR801BPower cabinet.figure 2-7 Mounting position of power suppliesEach power supply is equipped with a power socket, protected with two fuses. Each powersupply can be switched on or off by means of an external switch. The modules of the Repeaterare voltage free if all power supplies are switched off. The power socket, however, is stillprovided with mains power.See figure 2-8 ON / OFF position of external switch.power socket(service connector)
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 22 02-JUNE-99figure 2-8 ON / OFF position of external switchF Note: To switch the whole Repeater voltage free, you have to remove thefuses F1 and F2 on the screw terminal.The power supply is factory-set.2.9 Feed forward amplifierThe feed forward amplifier is the final stage which enables high output power as well as ahigh ICP3. One amplifier has to be installed for each path, the uplink and downlink.figure 2-9 Top view of the feed forward amplifier
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 23 02-JUNE-993 Functions and features3.1 Band and channel selectivityThe selectivity is achieved by highly selective filters in the IF part of the band / channelmodules.3.2 Gain settingThe gain can be changed by introducing attenuation into the amplifier chain. By using a rotaryswitch the attenuation can be adjusted locally in the range from 0 dB to 30 dB maximum insteps of 2 dB. The attenuation can be set for the UL and DL path separately.The rotary switches are mounted on the mother board. These switches are accessible throughthe long hole between the two RF modules (see figure 3-1 Position of rotary switches). Theycan be adjusted easily by means of a small screwdriver.figure 3-1 Position of rotary switchesFor remote control an RS232 interface can be used to set the gain.The functions of the control module may be used locally by means of a VT100 terminal or apersonal computer emulating the VT100 terminal. See also chapter 7.2, which deals withsettings of operational parameters.long hole
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 24 02-JUNE-993.3 ALCIn order to protect the amplifiers from overload and to prevent the system to generate spuriousemission, the amplifiers have an Automatic Level Control, designed to limit the output powerto a defined level. A part of the output power is rectified, amplified and used to control anattenuator network. In order to avoid oscillation, the control amplifier has an integratingcharacteristic, so that a step function response obtains a delayed rise and decay.FNote: The ALC protects the final amplifier. To keep spurious emissions belowcertain limits, the input power into the Repeater and the attenuationsettings of the repeater have to be considered properly.3.4 BITE and alarmsThe Built-In TEst concept comprises the monitoring of the power supplies, the operationalcurrents in the RF modules, the mother board and the remote control interface. Furthermore,the synthesizer lock and the temperature of the Repeater are monitored.There are three multicoloured LEDs mounted on the control module. The LED L3 indicatesthe presence of electrical power of +12VDC in the Repeater. Every alarm is indicated by thefailure LEDs, L1 and L2.Position of the LEDs on the control module is shown in the following figure.figure 3-2 Position of failure LEDs
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 25 02-JUNE-99All alarms can be checked by typing the ‘STATUS HIST’ command. Minor alarms with noinfluence on the system can be cancelled by typing the ‘ALARMACKN’ command, e.g. ALCactive, VSWR or door open. The following print screen illustrates a possible ‘STATUSHIST’ reportfigure 3-3 Status hist reportIn case a hardware failure is detected the concerning hardware module has to be replaced. Analarm can be acknowledged manually by software command. If all alarms have beenacknowledged the summary error LEDs are set back to green indication.In case of mains power failure all data of the STATUS HIST list are lost.The alarm can also be sent to the OMC.If monitored via a modem automatic dialling will generate a summary alarm message. Theoperator can acknowledge the alarm message by a simple ring back and after that he is able torequest a detailed status report.The following list comprises all available alarms in the Repeater. These alarms may occur inthe STATUS HIST list.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 26 02-JUNE-99NO. ALARM NAME ALARM ACTIVE STATUS1AMPLIFIER BIAS FAILURE2POWER SUPPLY 8 V FAILURE3POWER SUPPLY 12 V FAILURE4MAINS FAILURE5SYNTH FAILURE6DOOR OPEN(7) VSWR ALARM8ALC FAILURE9LITHIUM BATTERY VOLTAGE LOW10 OVERTEMP11 INVALID LOGIN ATTEMPT12 I2C BUS FAILURE(13*) EXT. ALARM 1 FAILURE(14*) EXT. ALARM 2 FAILURE(15*) EXT. ALARM 3 FAILURE(16*) EXT. ALARM 4 FAILURE(17**) EXT. BATTERY OVERTEMP.* Alarm default settings changeable by software instruction SET ALIAS.** This alarm may be activated together with the external alarms, for instance UPStemperature(...) Optional alarmstable 3-4 List of all available alarms3.4.1 Handling of alarmsAs soon as the software recognizes a valid alarm, a message is transmitted to the terminal.In remote mode via modem, the first of two stored telephone numbers will be dialled. In casea connection cannot be established the second telephone number will be dialled. If this shouldbe unsuccessful as well, the call will be repeated after a pre-set delay. The delay time can beset by software.If the connection can be established the alarm message will be sent including date, time andRepeater Id.-number.In remote mode the alarm can be acknowledged by simply ringing back and typingALARMACKN.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 27 02-JUNE-99If the reason for the alarm has been cleared or if the alarm should continue, a new alarmmessage will not be repeated. If there was an interruption of at least one second afteracknowledgement, a new alarm message will be generated.3.4.2 Status reportTwo instructions enable the operator to gain knowledge of the system status. Typing the GETcommand will be responded by a listing of all settings of the Repeater. STATUS will beresponded by a listing of all individual status information.An examples is listed below for a GET1* (REP1009V1.xx) and STATUS report. The listingcontains random data to demonstrate in which way these messages appear.*: Due to the fact that the report is very long, the GET report can be split in two parts. You have to type GET1 tosee the first and GET2 to see the second part.The complete listing of the dialogue language with the processor of the control moduleincluding the instructions to and the messages from the system is available as a separatemanual.figure 3-5 Example of a GET1 report
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 28 02-JUNE-99figure 3-6 Example of a STATUS report3.4.3 Severity levelsThis parameter defines five severity levels for an alarm and can be set in the alarm mask(detailed description in the software manual). The severity levels indicate how the capabilityof the managed object has been affected.The levels are described below and are ordered from most severe to least severe:- Critical: The critical severity level indicates that a service affecting condition hasoccurred and an immediate corrective action is required to restore thecapability of the managed object.- Major: The major severity level indicates that a service affecting condition hasdeveloped and an urgent corrective action is required. Such a severity can bereported, for example, when there is a severe degradation in the capability ofthe managed object and its full capability must be restored.- Minor: The minor severity level indicates the existence of a non-service affecting faultcondition and that corrective actions should be taken in order to prevent a moreserious failure. Such a severity can be reported, for example, when the detectedalarm condition is not currently degrading the capability of the managed object.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 29 02-JUNE-99- Warning: The warning severity level indicates the detection of a potential or impendingservice affecting failure before any significant effect has been caused. Action should be taken to further diagnose and correction of the problem shall preventa more serious service affecting failure.- Disable: The disable severity level indicates that the detected failure has no influence onthe system and shall not be sent to the terminal.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 30 02-JUNE-994 Optional equipmentThe following modules can be integrated as an option.4.1 VSWR moduleVSWR signal is continually measured by a special VSWR module. An alarm can be given forVSWR < 10 dB.4.2 External alarmsWith the following option it is possible to monitor 4 external alarms via the Repeatersoftware. Hence the status of the connected device, e.g. UPS, can be monitored.The contacts of the alarms can be accessed at clamps on the main board (right side of theRepeater).figure 4-1 Clamps for external alarms
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 31 02-JUNE-99The electrical connection has to be as follows.External alarm 1 (low active)External alarm 2 (low acitve)External alarm 3 (high active) External alarm 4 (high active) GroundConfiguration: 5 V / 0.5 mA max. for open collector applications.All external alarms are normally high without connection. Due to the fact that the externalalarms 3 and 4 are high active, they have to be connected to ground to prevent an alarmmessage.The factory-set response after typing the software command STATUS EXTALARM is forinstance „EXT. ALARM 1 OK“, if the alarm is not active and „EXT. ALARM 1 FAILURE“,if the alarm is active.The name for each external alarm and the name for the alarm message can be defined by thecustomer with the corresponding software command.The following example describes the response for the external alarms to control a UPS.Example: External alarms if the UPS is activeEXTERNAL ALARM STATUSUPS alarm activeBattery low !UPS door openBattery door openor External alarms if the UPS is not activeEXTERNAL ALARM STATUSUPS not activeBattery OKUPS door closedBattery door closedFor the DC wiring an additional cable bridge has to be installed on the control module (seefigure 4-2 Cable configuration and installation position).
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 32 02-JUNE-99figure 4-2 Cable configuration and installation position4.3 ModemThe Repeater can be equipped with a modem for the operation of the Repeater via modemconnection. This allows the operator to change settings and querry information of theRepeater remotly.See chapter 5.5 External RF output and chapter 7.2.3 Settings via modem for furtherinformation about the opional modem.4.4 Battery backup moduleIf backup is required only for the control module and the modem, low capacity batteries areavailable to operate controller and modem for at least ten minutes under normalenvironmental conditions.Battery backup is provided for the control module to transmit alarm information in case ofpower failure. The battery type is a NiCd 8.4V/300 mAh. The battery backup is sufficientenough to support multiple dial out attempts via modem in case of ‘system engaged’ or othercommunication problems for at least ten minutes under normal environmental conditions.F Note: This battery backup module is provided for the control module only.Control module
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 33 02-JUNE-99The batteries are protected from deep discharge by use of a low voltage disconnect circuit. Alocal switch is provided to disconnect the battery backup system during maintenance to ensurethat all circuits are voltage-free.The switch is located on the battery backup module.Switch ON ( default ) OFFBattery backup active Battery backup not activeThe module is directly plugged into the control module. During the charging process a greenLED V7 on the module indicates, that the battery is charged at the moment. After finishingthe process the LED V7 will be switched off.The batteries are mounted underneath the modem mounting plate (see following figure).figure 4-3 Mounting position of batteries
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 34 02-JUNE-995 Specification5.1 Electrical specificationFrequency range Uplink 824-849 MHz; Downlink 869-894 MHzUseable bandwidth 25 MHz in the upper or lower AMPS 800 bandGain 90 dBGain variation overfrequency and temperature* ±2.5 dB (±3.5 dB at extreme temperatures)Gain adjust range 30 dB in 2 dB stepsGain adjust range tolerance ±0.5 dBReturn loss 15 dB @ 25°C ambient temperatureSpurious/intermodulation -13 dBm maxSpectral re-growth (CDMA only) -45 dBc (J-STD-008)Power supply 115 VAC ± 15% / 40 - 65 HzOption: 230 VAC ± 15% / 40 - 65 HzOption: 185 - 320 VAC / 40 - 65 HzOption: 24 VDCOption: 42 to 60 VDCRF connector 7/16 femaleOption: N femaleEnvironmental and safety See separate leaflet*: Normal temperature range +5° to +40°C; Extreme temperature range -33° to +50°C
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 35 02-JUNE-99BAND AND CHANNEL SPECIFICATIONSVariable Bandwidth ChannelCDMA TDMA3 dB bandwidth 0.1 to 15.0 MHz 1.23 MHz 30 kHzSlope 3 dB to 30 dB 2 MHz - -30 dB bandwith -fc ± 900 kHz fc ± 60 kHz50 dB bandwith -fc ± 1.5 MHz fc ± 120 kHzDelay 6 µs < 6 µs 20 µsDelay variation (typical) ±150 ns ±500 ns ±500 nsFar off selectivity 40 dB 60 dB 55 dBNF at Gmax 8 dB 6 dB 6 dBNF at Gmax-30 dB 13 dB 12 dB 12 dBOICP-3 at Gmax 59.0 dBm 59.0 dBm 59.0 dBmOICP-3 at Gmax -10 dB 58.5 dBm 58.5 dBm 59.0 dBmOICP-3 at Gmax -20 dB 57.5 dBm 58.0 dBm 58.5 dBmOICP-3 at Gmax -30 dB 53.0 dBm 55.0 dBm 57.0 dBmOutput noisein band at Gmax-76 dBm/Hz - -Output noise out of bandat Gmax -96 dBm/Hz - -Power consumtion(standby/max power)1 module (typ.cons)4 modules (typ.cons)145/220 W180/270 W130/210 W160/240 W130/210 W160/240 WAll data is subject to change without notice !
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 36 02-JUNE-995.2 Mechanical specificationStandard cabinetMax. Height x Width x Depth: 21.1 x 18.2 x 7.9 inches535 x 462.5 x 200 mmVolume: approximately 45 litresWeight: approximately 103 lbs (47 kg per unit in standardconfiguration)The illustration of chapter 11.1 provides the dimensions and the view of the layout.5.3 Environmental and safetyFor detailed information refer to the environmental and safety specification leaflet forMIKOM indoor / outdoor cell enhancers, related to ETS 300019 (European Tele-communication Standard).Operating temperature (normal temperature range): + 5° C ... + 40° C (extreme temperature range): - 33° C ... + 50° CHumidity: + 30° C/ 93 %5.4 External electrical interfaces5.4.1 Electrical powerThe Repeater MR801B Power can be supplied with the following power supplies (mains):• 115 Vac ± 15% 40 - 65 Hz• 230 V ac ± 15% 40 - 65 Hz• 185 - 320 Vac 40 - 65 Hz• 24 Vdc• ±42 to ±60 Vdc• ±80 to ±130 VdcA firmly installed mains cable 3x1.5 mm² is used, which is fed into the housing through awatertight cable gland. Due to safety reasons the power supply lead has to be protected by two8 A fuses. Inside the Repeater, mains are connected to a screw terminal.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 37 02-JUNE-99See figure 5-1 Screw terminal for mains cable for the position of the two 8 A fuses.figure 5-1 Screw terminal for mains cable5.4.2 RF connectionsThere are two 7/16 female antenna connectors at the outside of the housing accessible on theconnector panel (see figure 5-2 Connector panel layout).figure 5-2 Connector panel layout
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 38 02-JUNE-99The 7/16 TX-downlink connector should be connected to the antenna system for thecommunication with the mobile units.MobileThe 7/16 TX-uplink connector should be connected to the antenna system for thecommunication with the Base Transceiver Station.BTSAs an option a 7/16 - N adapter is available.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 39 02-JUNE-995.5 External RF outputAn external output in the downlink path is available at the outside of the housing as an option.This enables the connection of an integrated modem to an additional antenna. The connectortype is N female.External RF outputfigure 5-3 Position of external RF output
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 40 02-JUNE-996 InstallationBTSRX UplinkTX DownlinkMobileTX UplinkRX DownlinkRX DownlinkTX UplinkTX DownlinkRX Uplinkto/fromMobile Stationsto/fromBTSRepeater Systemfigure 6-1 System description
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 41 02-JUNE-996.1 Mechanical installationF Note: Due to power dissipation the Repeater may heat up the air volume insidethe cabinet and reach a very high temperature. Therefore it is necessary to mount theRepeater in the vertical plane to a wall or a mast without additional enclosure to providesufficient ventilation. Between the housing and the wall a minimum distance must bekept in order to provide air circulation.F Note: The weight of the MR801B Power is approximately 47 kg in standardconfiguration.The Repeater must be mounted in the verticalplane to a wall or a mast, which means theconnectors have to be located at the bottom.Use the mounting brackets, which are part of thedelivery. This will guarantee a minimumdistance between the wall and the Repeaterhousing. The cabinet must be fixed to the wall(brackets) with four screws.Check the correspondence of the wall mountingkit and the wall.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 42 02-JUNE-99Mounting procedure:Dismount the mounting brackets first. They are screwed tight to the housing with four sockethead cap screws M8.0x16 (see figure below) and two tire bolts.figure 6-2 Wall mounting bracketsUse the wall mounting sheet to mark the position of the drilling holes. Drill 4 holes and screwthe mounting brackets to the wall. Attach the upper two socket head cap screws M8.0x16 tothe Repeater housing. Now it is possible to hang the Repeater into the mounting brackets. Fixthen the lower two socket head cap screws M8.0x16 and the 2 tire bolts.F Note: The unit is heavy-weight. Make sure that a suitable mounting surface isused. Only adequate manpower is allowed to handle the system.The installation position of the Repeater follows from the installation drawing see figure 11-1Installation drawing of the Repeater. Make sure that there is free access to the electricalconnections. The allowed bending radius of the connected cables must not be exceeded.Furthermore the Repeater shall be mounted in a way that there is free access to the individualunits inside the cabinet, while the door of the Repeater is open.Therefore keep a clearance distance of 1 m on each side and 2 m below the unit.See following figure 6-3 Clearance distance.mounting brackets
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 43 02-JUNE-99figure 6-3 Clearance distance
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 44 02-JUNE-996.2 Electrical installationFNote: ESD precautions have to be observed! Before working inside the cabinetuse the available grounding system to connect ESD protection measures.The electrical installation has to be performed in accordance with thesafety regulations of the local authorities. Due to safety reasons theelectrical installation must be performed by qualified personnel. Thecover of this unit should not be opened while power is applied.Subsequent installation, commissioning and maintenance activities thatrequire the unit to be powered with the cover open shall only be carriedout by suitably qualified personnel6.2.1 GroundingGrounding has to be performed by all means. Therefore a grounding bolt is provided at thecabinet. An earth bonding cable will be mounted in the factory and will be delivered with theunit. Don’t use the grounding screw for connecting external devices.The complete grounding kit is part of the delivery schedule, see figure 6-4 Grounding kit.figure 6-4 Grounding kit
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 45 02-JUNE-996.2.2 Power connectionBefore connecting electrical power to the Repeater grounding has to be performed. TheRepeater is equipped with a firmly connected power cord 3 x 1.5 mm². Due to safety reasonsthe power supply lead of the Repeater has to be protected with two 8 A fuses, type MT. In theevent the length of the power cord should not be sufficient it can be replaced by a longercable.figure 6-5 Screw terminalF Note: If the power supply lead has to be replaced use a cable of the same quality.6.2.3 Connection of the antenna cablesThe Repeater has two female antenna connectors 7/16. For mounting the corresponding cableconnectors we recommend to refer to the applicable documentation of the respectiveconnector manufacturer. The bending radius of the antenna cables must remain within itsspecification. This will warrant proper operation of the system; otherwise changes in theelectrical behaviour of the cable might occur which could cause malfunction of the Repeatersystem.F Note: It is sufficient to fix the 7/16 antenna connectors hand-screwed.Any use of a tool (like tongs) might cause damage to the connectors andthus lead to malfunctioning of the Repeater.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 46 02-JUNE-997 Setting to work7.1 PreparationF Note: It is not allowed to operate the Repeater without termination of the antenna connections! The termination can be performed by the antenna connection as well as a dummy load or the 50-Ohm-terminated connectionof a measuring instrument.Before bringing the Repeater system into service it is necessary to measure the antennaisolation. The Repeater system has its maximum available gain when the attenuation is set tozero. On site the maximum allowed gain is 15 dB less than the value of the antenna isolation.In order to check the function of the Repeater system on site it is advisable to operate theRepeater system with 50 Ohm termination. This makes it possible to set the necessary gainand to test the set value without the necessity of transmitting on air.In order to perform settings the Repeater has to be opened. Please, ensure not to damage theseals, which are on the modules situated on the RF modules inside of the Repeater, becausethis would lead to risk the success of warranty claims.After taking the Repeater into service following signals occur during the boot process.InternalLED L1 InternalLED L2 InternalLED L3 Causegreen red green red green- - - - ll Power on state,Software boot startsll Flashesred shorttimell Flashes redshort time ll Software boot startsll ll ll Software is runningtable 7-1 LED indication
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 47 02-JUNE-997.2 Setting of operational parametersAttenuation of the Repeater can be set manually by means of rotary switches, frequency canbe set locally or remotely.There are three different possibilities to set the operational parameters:-manual settings by means of rotary switches-local control via RS232 interface and PC-remote control via modem7.2.1 Manual settings by means of rotary switchesThe manual mode allows the user to set the required channels and attenuation by means ofrotary switches. With a small screwdriver, which fits through the long holes of the RFmodules, the values can be adjusted by turning the switch carefully to the desired position.F Note: To enable manual settings of parameters the mode switch (DIP-Switch 1)has to be changed from OFF to ON.The DIP-Switch is mounted on the control module, located on the left side of the Repeater.figure 7-2 Position of the DIP-Switch 1DIP-Switch 1
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 48 02-JUNE-997.2.1.1 Setting of the attenuationThe gain can be set by introducing attenuation into the amplifier chain. By using a rotaryswitch the attenuation can be adjusted locally in the range from 0 dB to 30 dB maximum insteps of 2 dB. The attenuation can be set for the UL and DL path separately.The rotary switches are mounted on the mother board. These switches are accessible throughthe long hole between the two RF modules ( see figure 7-3 Position of the rotary switches).They can be adjusted easily by means of a small screwdriver.figure 7-3 Position of the rotary switchesA label on the RF module, located next to the rotary switch, illustrates the usage of the rotaryswitch (see figure 7-4 Rotary switches and label).long hole
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 49 02-JUNE-99figure 7-4 Rotary switches and labelF Note: Gain can be changed independently for the uplink and downlink path.DIP-Switch configuration:DIP-Switch ON OFF (default values)1manual auto2remote mode local mode3n.c. n.c.4software downloadmanually controlled software downloadcontrolled by softwaretable 7-5 DIP-switch configuration7.2.2 Settings via personal computer as terminalInstead of manually setting operational parameters via rotary switches it is also possible to usethe functions of the control module. The local mode for settings via PC has to be set.Therefore the DIP-Switch 2 has to be at position OFF.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 50 02-JUNE-99figure 7-6 DIP-switch 2 for local modeA VT100 terminal or a PC with VT100 emulation can be connected to the control moduleSM2009 by a standard RS232 cable, if necessary in connection with an adapter 9 to 25.Cable Connections PC - Control Module SM20099 contact SUB - D- Connector 9 contact SUB - D- Connectormale malePC RS 232MR801B PowerPIN PIN1 ) ( 12 ) ( 23 ) ( 34 ) ( 45 ) ( 56 ) ( 67 ) ( 78 ) ( 89 ) ( 9DIP-Switch 2
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 51 02-JUNE-99The following communication mode between control module and VT100 is set initially. 9600 baud - 8 bit - no parity -1 stopbitThese settings can only be changed after connection of the terminal. If all wanted settingshave been initialized and a modem has to be used it will be recommended to check whetherthe settings comply with the capabilities of the modem and the line. Modifications arepossible by software commands.F Note: Settings on the Repeater can be performed after the following procedureonly.After connecting the PC to the Repeater, following procedure is necessary to get access to theprogram.MIKOM REPEATER MR801B - SM2009 - SW: REP1007V1.11ENTER <.> <CR> TO LOGIN1. Step: Type the two keys ( . ) FULLSTOP and (↵) ENTERYou have to type the keys:2. Step: ENTER USER IDYou have to enter: UserID1 ↵F Note: The input is case sensitive, no blanks. After three mistrial followsdisconnection.3. Step: ENTER PASSWORDYou have to enter: P-word1 ↵F Note: The input is case sensitive, no blanks. After three mistrials followsdisconnection. ↵↵.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 52 02-JUNE-997.2.3 Settings via modemThe Repeater can be equipped with a modem. If so, the repeater will be delivered with apreset init string. This init string was used for internal tests. In case no connection can beestablished check the local conditions and change the init string if necessary.The following list contains the description of the AT commands:&F Sets modem to factory configurationE0 Echo OFFS0=1 Auto answer ON; the GSM module / M1 modem goes off-hook after the first ringing signal.S7=60 Waiting time for connection after dialing; permissible valuesare from 0 ... 60.B13 Setting to 9600 bps asynchronous mode\ N6 Auto reliable operation\ N0 Standard operation, no error correction+CBST=7,0,1 Set bearer service type to 9600 bps. Non-transparentconnection (uses RLP)X3 Not waiting for dial tone; usually used at PABX.*P1 Switch ON phone&K4 Enables XON / XOFF flow controltable 7-7 List of AT commands
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 53 02-JUNE-998 Trouble shootingAll Repeaters are factory-set to „Power down disabled“ status, this means the channel groupis active. To switch off the channel group use the software command „PWRDOWN enabled“.(You find a detailed description in the software manual.)8.1 Error indicationl = LED on- = LED offInternalLED L1 InternalLED L2 InternalLED L3 Causegreen red green red green- - - - -No power.Check presence of power atthe input; replace fuseaccording to chapter 9.3,check battery backup modulel l l Indicates asummary failure8.2 Boot processFollowing signals occur during boot process.InternalLED L1 InternalLED L2 InternalLED L3 Causegreen red green red green- - - - llPower on state, Software bootstartsll Flashes redshort time ll Flashes redshort time ll Software boot startsll ll ll Software is running
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 54 02-JUNE-998.3 Alarm monitoring with the STATUS HIST commandCheck alarms with ‘status hist‘ command.1. If a hardware module is damaged, replace corresponding hardware module.2. Minor alarms with no influence on the system can be cancelled by confirming the alarmwith the ‘alarmackn’ command, e.g., ALC active, VSWR, RSSI or DOOR OPEN.3. If all alarms have been acknowledged the summary error LEDs will be set back to greenindication.4. In case of mains power failure the contents of the actual STATUS HIST list is lost.For a complete list of available alarms, see table 3-4 List of all available alarms8.4 Power supplyThe output voltage is factory set and should not be changed.8.5 General remarks• After a software download previous user settings ( data default values ) might beoverwritten. Before you start a software download save the set values for:- centre frequency- attenuation- ALC threshold• If an ALC or AMPBIAS alarm occurs during installation or commissioning an user errormight be the cause, due to wrong measurements.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 55 02-JUNE-999 Maintenance9.1 GeneralF Note: The Repeater does not require preventative maintenance measures.It is only recommended to replace the RAM/RTCbattery after three years usage as a prophylacticmeasure. The nominal lifetime of these batteries isfive years under normal environmental conditions.In the event of a malfunction it is advantageous tocheck the status of the antenna systems as well asthe continuity of the entire cabling includingconnectors, before replacing the modules.Maintenance on the Repeater shall be performedonly by replacing modules. Soldering on printedcircuit boards shall be avoided. In order to sustainwarranty take care not to damage unintentionallythe seals on the modules.The spare part list, consequently, contains onlyunits, which can be replaced without tuning orcomplex soldering work.figure 9-1 Top view of the RepeaterF Note: Defect parts should only be replaced by original parts from MIKOM.All interventions inside the housing are at one’s own risk.During maintenance ensure that the Repeater has been disconnected frommains.Open the lock at the connector panel and remove the cover plate. To open the housing use aTorx key and unscrew the four Torx screws.9.2 Replacement of the fuses (mains)The mains cable is protected with two fuses F1 and F2 8A type MT. They are accessibleinside of the Repeater at the fuse terminal on the right side. Open the screw plug for the fuseand take out the fuse.F Note: Use only fuses of the same type and the same rating when replacing!See figure 9-2 Fuse terminal for position of the 8A fuses.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 56 02-JUNE-99figure 9-2 Fuse terminal9.3 Replacement of the power supply fuseEach power supply is protected with a fuse 10 A / 35 V. The fuse is mounted outside of thepower supply housing.F Note: Use only fuses of the same type and the same rating when replacing!figure 9-3 Position of power supply fuse9.4 Replacement of the mains cableThe Repeater will be delivered with a firmly connected mains cable.In case the length of the delivered mains cable should not be sufficient or in case of a defect,the mains cable can be replaced.F Note: Disconnect Repeater from mains first.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 57 02-JUNE-99Remove the clamping profile at the outside of the housingby pulling at the mains cable. Open the PG9 threaded jointwith a spanner size 17. Inside the housing remove theplastic cable clip by unscrewing the tallow-drop screw.Then use a small screwdriver and open the screws of thefuse terminal.Now the mains cablecan be removed bypulling at the cable. For the installation of a new cablestrip the isolation of a new cable to the length of 18 cm.Put the screw of the cable gland over the cable then usethe joint rubber and pull it over the cable. This willguarantee a tight connection. Now insert the cable.Inside the housing pull an insulated tube with the lengthof 8 cm over the wires. Now close the PG9 threadedjoint. Screw the wires to the fuse terminal. Fix the cablewith the plastic cable clip.Put the cable in the guide shaft and close it with the clamping profile.9.5 Replacement of the RAM / RTC batteryThe RAM / RTC battery of the control module has to be replaced in case of memory loss oras a preventive measure after approximately three years usage. The RAM / RTC battery ismounted on the left-hand side of the Repeater underneath the dummy battery backup moduleFirst remove the whole dummy battery backup module ( see figure 9-5 Position of dummybattery backup module ), which is plugged into the control module. Take off the Lithiumbattery by means of a small screwdriver, placed between the battery and the battery socket.The type of the battery is CR 2450 Lithium 3 V / 500mAh, manufacturer is RENATA.After replacement of the RAM battery, the control module has its basic settings, date and timehave to be set to the actual value.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 58 02-JUNE-99figure 9-4 Position of RAM/RTC batteryF Note: Before replacing the battery, disconnect the Repeater from mains.Observe the rules for changing Lithium batteries. Wrong connection ortreatment may result in bursting of the battery and dissemination ofhazardous substances.Don’t try to charge this battery.9.6 Replacement of the dummy battery backup moduleThe dummy battery backup module is accessible after opening the housing on the left-handside. (If a modem is implemented, you have to disconnect the cable from the modem which isconnected with the battery backup module.)Before you are able to remove the module from the socket, release the three snap-in lockings.RAM/RTC batterydummy battery backup module
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 59 02-JUNE-99figure 9-5 Position of dummy battery backup module9.7 Replacement of duplexersThis description is valid for the one channel configuration of the Repeater only. For differentconfigurations refer to the assembly guide for the Repeater.Remove the semi-rigid cables which connect the UL output and the DL output with the feedforward amplifier by loosing the SMA connectors. Use a torque wrench. Then remove thesemi-rigid cables from the RF modules. (BTS side marked with a red spot).It is recommended not to remove the amplifier which is mounted on the backside of theduplexer. A new duplexer will be delivered with a premounted amplifier.dummy battery backup module
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 60 02-JUNE-99The cables have to be connected like shown below.figure 9-6 Cable configuration of the duplexersUnscrew the four counter sunk screws M3 at the connector panel of the Repeater. See figure9-7 Connector panel layout.figure 9-7 Connector panel layout9.8 Replacement of RF modulesTo remove the RF modules, disconnect the SMA connectors by means of a torque wrench.If the Repeater is equipped with TDMA modules, the external filter on top of the modulesmust be dismounted beforehands. The external filter box covers two of the socket head capscrews the TDMA module is fixed with.Unscrew the socket head cap screw on top of the external filter box, pull the box carefully offand continue the dismounting procedure like described below.
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 61 02-JUNE-99Unscrew six socket head cap screws by means of a hex socket key.Pull carefully by means of the mounting strap, fixed on the module (see figure 9-8 Top viewof an RF module) and take off the modules.*: TDMA and CDMA modules are equipped with mounting straps on the left and on the right side.figure 9-8 Top view of an RF moduleConnecting the RF modules depends on the number of channels your Repeater is equippedwith, i.e. with one up to four channels. Each configuration has got a different cabling. Seeassembly guide of the channel modification kits for the cabling and functional description ofthe RF modules dependent on the configuration of the Repeater.Mountingstrap *Socket head capscrews
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 62 02-JUNE-99For the exchange of an RF moduleor the installation of a new RFmodule, the slave address of the synthesizerhas to be set. This can be done by meansof hex-coded rotary switches mountedon the lower side of the modules(figure 9-9 Position of hex coded rotary switches).figure 9-9 Position of hexcoded rotary switchesThe synthesizer address must be set like shown in the following table:AddressRF module UL DLChannel one 0 1Channel two 2 3Channel three 4 5Channel four 6 7table 9-10 Address of synthesizerInstructions for band selective modules with variable bandwith can be found in a seperatedocument.9.9 Replacement of the control module SM 2009The control module is a Printed Circuit Board situated on the left-hand side of the Repeater.Disconnect the DC cable from power supply.Disconnect the flat cable.Remove the battery backup module and remove the Tyrap which is fixed to the controlmodule.Disconnect the RS232 cable from the M1 modem if the Repeater is equipped with a modem.Hex-coded rotary switchfor ULHex-coded rotary switchfor DL
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 63 02-JUNE-99Take off the whole control module completely with mounting plate by unscrewing four tallowdrop screws M4.For mounting proceed in reverse order.Position of the control module in the Repeater is illustrated in figure 9-11 Position of controlmodule.figure 9-11 Position of control module9.10 Replacement of power suppliesF Note: Ensure that mains are disconnected.There are four power supplies mounted in the Repeater housing, two on each side. Open theRepeater to get access to the devices.Remove all connected cables from the clamps of the power supply. Try to loose the plug bymeans of a small screwdriver placed between the plug and socket.ONFuse 10A / 35Vfigure 9-12 Power supply
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 64 02-JUNE-99The power supply is fixed to the Repeater housing by means of two special nuts M4. Afterloosen the screws the power supply can be removed. To open these screws a special key witha spherical head is required. Place a small screwdriver between the Repeater housing and thepower supply to loose the device.figure 9-13 Position of special-nut M4F Note: Don’t forget to put heat conducting paste on the mounting side forinstallation of a new power supply. Use the conducting paste, which isincluded in the spare parts kit.9.11 Replacement of active combiner modulesThe active combiner modules are mounted on both sides of the Repeater.Disconnect all SMA connectors by means of a torque wrench.Unscrew two counter sunk screws M3x20mm. See figure 9-14 Position of counter sunkscrews on active combiner
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 65 02-JUNE-99figure 9-14 Position of counter sunk screws on active combinerThe cabling of the active combiners depends on the configuration of the Repeater. For correctconnections see assembly guide for the channel modification kits9.12 Replacement of feed forward amplifiersThere is one amplifier mounted on each side of the Repeater. They are fixed to the housing bymeans of 6 socket head cap screws M4x25.A special reset board is connected to the 15 pole SUB-D connector. (See figure 9-15 Positionof the feed forward amplifier reset board)This reset board is part of the feed forward amplifier. A new feed forward amplifier will bedelivered with a premounted reset board.countersunkscrews
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 66 02-JUNE-99figure 9-15 Position of the feed forward amplifier reset boardRemove the ready made cable which is plugged to the 15 pole SUB-D connector of the resetboard. Unscrew the screw clip first.The SMA connectors can be removed only after dismounting the amplifier.Position of the feed forward amplifiers are illustrated in figure 9-16 Position of feed forwardamplifiers (4-channel Repeater)Reset board
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 67 02-JUNE-99figure 9-16 Position of feed forward amplifiers (4-channel Repeater)
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 68 02-JUNE-9910 Spare parts listThe following list contains all parts available for the MR801B Power . The configuration ofthe delivered unit meets the requirements of the customer and can differ depending on thestate of delivery.Designation Id.-No.Assembly drawing 149952Assembly drawing RF - cable plan 150563Mounting material 150521Basic Module TDMA 148712Extension Module TDMA 148710Basic Module CDMA 148713Extension Module CDMA 148709Basic Module var. BW 148715Extension Mod. var. BW 148944PCS-Duplexer DL Input 824.04 - 848.97 MHz * 148333PCS-Duplexer UL Input 824.04 - 848.97 MHz * 148334Feedforward Amplifier 824 - 849 MHz 148629Feedforward Amplifier 869 - 894 MHz 148630Power Supply 230 Vac ±15% 14 - 65 Hz Ger plug 138305Power Supply 230 Vac ±15% 14 - 65 Hz UK plug 142832Power Supply 230 Vac ±15% 14 - 65 Hz no plug 144306Power Supply 24Vdc no plug 145504Power Supply 185 - 320 Vac 40 - 65 Hz no plug 148812Power Supply 115 Vac ±15% 40 - 65 Hz USA plug 141230Power Supply ±42 - ±60 Vdc no plug 144946Power Supply ±80 - ±130 Vdc no plug 145524SW MOB100 V1.10 143055Control Unit SM2009 143051SW REP1007 V1.12 145488SW REP1009 V1.04 147127Manual REP1007 V1.11 145956Manual REP1009 V1.xx 148964Dummy Battery Backup Module 143750Battery Backup Module 143052Sparepart Kit 146200Wall mounting Kit 146179Main Board 26V version 149778Main Board 26V version 149777Active Combiner DL 869 - 894 MHz 148687Active Combiner UL 824 - 849 MHz 148688Termination Resistor 33167Ready-made cable AC 143606
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 69 02-JUNE-99Ready-made cable DC 149648Ready-made cable DC female headers 6 contacts 1507534 External Alarms option Kit 147710Adapter 7/16 male N female 112425RF Gland / SMA to N 150615Mother board 147024Manual for MR801B Power 151111Assembly guide for modification kits 151045Modification Kit for one channel 149917Modification Kit for two channels 149918Modification Kit for three channels 150529Modification Kit for four channels 149920*: Duplexers are labeled refering to the UL frequencytable 10-1 Spare parts list
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 70 02-JUNE-9911 Appendix11.1 Installation drawing of the Repeaterfigure 11-1 Installation drawing of the Repeater
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 71 02-JUNE-9911.2 Top view of the Repeater (left side , one channel configuration)figure 11-2 Top view of the Repeater (left side, one channel configuration)
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 72 02-JUNE-9911.3 Top view of the Repeater (right side, one channel configuration)figure 11-3 Top view of the Repeater (right side, one channel configuration)
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 73 02-JUNE-9911.4 One channel configuration – cabling and block diagramfigure 11-4 Cabling of one channel Repeater
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 74 02-JUNE-99figure 11-5 Block diagram of one channel Repeater
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 75 02-JUNE-9912 IndexAAbbreviations 8Active combiner 20, 64Address of MIKOM 11Alarm monitoring 54AlarmsAcknowledgement of 26External alarms 30Handling of 26Indication of 24List of all alarms 26ALC 24Antenna connectors 37, 45Antenna isolation 46AT commands 52BBattery backup 32BITE 24Boot process 53CChannelSetting via PC 49Clamping profile 57Connector types7/16 female 38N female 39Contents of delivery 9Control module 18DDIP-Switch 49Dummy battery backup module 58Duplexer 15, 19, 59EEEPROM 18Environmental and safety 36ESD precautions 11FFeed forward amplifier 22GGainLocal settings 23, 48Setting via PC 49Grounding 44HHealth and safety warnings 10II²C-Bus 18Ident numbers 68InstallationElectrical 45Mechanical 41Interfaces 18RS232 18International sales offices 12LLEDs 24Local settings 47MMaintenance 55Measurements ofVSWR signals 30Modem 51Mother board 17Mounting brackets 42OOptional modules 30Output DLexternal 39
User’s manual for Repeater MR801B PowerM0067A0A.doc Id.-No 151111 Page 76 02-JUNE-99PPower supply 21Replacement of 64RRAM / RTC battery 57Remote control 23RF module 60Rotary switchTo set the gain 48SSetting of operational parameters 47Setting to work 46Severity levels 28TTest probes 20Trouble shooting 53

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