Andrew Wireless Innovations Group MRB-PCS Repeater/Booster User Manual Mr boost rev2

Andrew Wireless Innovations Group Repeater/Booster Mr boost rev2

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MRB PCS User Manual

MR BOOSTER MANUAL

MR Booster ManualOrder No. MN001808-1Issue 7/99© Copyright 1999 MikomAll Rights Reserved

Page - ii - MR Booster Manual (MN001808-1, 7/99)All rights reserved. No part of this publication, or any software included with it, may bereproduced, stored in a retrieval system, or transmitted in any form or by any means,including photocopying, electronic, mechanical, recording, or otherwise, without priorwritten permission of the copyright holder.This document contains proprietary information of MIKOM. The contents are confidentialand any disclosure to persons other than the officers, employees, agents, or subcontractors ofthe owner or licensee of this document, without prior written consent of MIKOM, is strictlyprohibited.Field SupportIf you need technical assistance with the MR Booster contact MIKOM at:Technical Hotline: (800) 800-3224

MR Booster Manual (MN001808-1, 7/99)Page - iii -Safety InformationThe MR Booster equipment has been designed for maximum safety when installed, operated,and maintained according to the instructions in this manual. Do not bypass any of the safetyfeatures of this equipment or operate this equipment in an improper environment.All wiring external to the equipment should comply with the current edition of the ElectricalCode or any national wiring rules that apply.Publication NoticeThe information in this document is subject to change without notice. MIKOM shall not beliable for technical or editorial errors or omissions that may occur in this document, or forincidental or consequential damages resulting from the furnishing, performance, or use of thisdocument.

Page - iv - MR Booster Manual (MN001808-1, 7/99)LIMITED WARRANTYMIKOM, a division of ALLEN TELECOM INC. ("ALLENTELECOM"), warrants, on the terms and conditions hereto set forth, all productsmanufactured by it to be free under normal use and service from defects inmaterials and workmanship for a period of one (1) year from the date of shipment,to the first consumer (the "Warranty Period").ALLEN TELECOM's obligation under this Warranty is limited to promptrepair or replacement of the product, at its option, without charge, at an authorizedALLEN TELECOM dealer or at the factory of ALLEN TELECOM in Cleveland,Ohio, when the product is returned to an authorized dealer or to the factory withall transportation charges prepaid and examination of the product shall disclose itto have been defective in the respects aforesaid during the Warranty Period.The Limited Warranty Period shall not be extended beyond its originalterm with respect to any part or parts repaired or replaced by ALLEN TELECOMhereunder.The Warranty Period shall not apply to any product which has beenrepaired or altered in any manner by anyone other than ALLEN TELECOM or anauthorized outlet of ALLEN TELECOM, or if the defect, malfunction or failureof the was caused by damage by lightning, flood or other acts of nature or bypower surges, or from unreasonable use, or from improper installation orapplication, or to any product which has not been maintained or used inaccordance with the operating specifications set forth in ALLEN TELECOM'swritten instructions.IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESSFOR ANY PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THEWARRANTY PERIOD SPECIFIED ABOVE.UNDER NO CIRCUMSTANCES SHALL ALLEN TELECOM BELIABLE FOR ANY CONSEQUENTIAL DAMAGES FOR BREACH OF THISWARRANTY OR OF ANY IMPLIED WARRANTY.ALLEN TELECOM neither assumes nor authorizes any person to assumefor it any obligation or liability other than as herein expressly stated.

MR Booster Manual (MN001808-1, 7/99)Page - v -ContentsPageSection 1. Introduction................................ ................................ ........................ 11.1 About This Manual................................ ................................ ................................ ........11.2 Conventions Used in This Manual ................................ ................................ ................ 21.3 Terminology................................ ................................ ................................ .................. 2Section 2. System Description................................ ................................ ............. 32.1 Introduction ................................ ................................ ................................ ................... 32.2 System Overview................................ ................................ ................................ .......... 32.3 Theory of Operation ................................ ................................ ................................ ......52.3.1 Downlink Path ................................ ................................ ................................ ..52.3.2 Uplink Path ................................ ................................ ................................ .......62.3.3 System Control ................................ ................................ ................................ .62.4 System Components................................ ................................ ................................ ......92.4.1 Power Supply................................ ................................ ................................ ....92.4.2 Downlink Power Amplifier ................................ ................................ .............. 92.4.3 Logic Controller Board................................ ................................ ..................... 92.4.4 PA Combiner/Splitter Module................................ ................................ ........102.4.5 Uplink Low Noise Amplifier................................ ................................ ..........102.4.6 Duplexers................................ ................................ ................................ ........112.4.7 RF Cable ................................ ................................ ................................ ......... 112.4.8 Fan Assembly................................ ................................ ................................ ..112.4.9 VSWR Module ................................ ................................ ............................... 112.4.10 Downlink Driver Amplifier................................ ................................ ............ 122.4.11 Input/Output Panel................................ ................................ .......................... 12Section 3. Installation ................................ ................................ ........................ 153.1 Introduction ................................ ................................ ................................ ................. 153.2 Site Selection................................ ................................ ................................ ............... 153.2.1 Equipment Inventory ................................ ................................ ...................... 153.2.2 Installation Tools and Equipment ................................ ................................ ...163.2.3 Site Requirements................................ ................................ ........................... 163.3 Installation ................................ ................................ ................................ ................... 173.3.1 Mechanical................................ ................................ ................................ ......173.3.2 Electrical Connections ................................ ................................ .................... 203.3.3 RF Connections................................ ................................ ............................... 213.3.4 Logic Controller Board................................ ................................ ................... 223.4 Installation Checklist ................................ ................................ ................................ ...243.5 System Optimization................................ ................................ ................................ ...253.5.1 Downlink Gain Setting ................................ ................................ ................... 253.5.2 Downlink Power Measurement................................ ................................ ......253.5.3 Uplink Gain Setting ................................ ................................ ........................ 26

ContentsPage - vi - MR Booster Manual: (MN001808-1, 7/99)Section 4. Setting Up for Initial Operation ................................ ...................... 274.1 Introduction................................ ................................ ................................ ................. 274.2 Connecting a Terminal................................ ................................ ................................ 284.3 Basic Commands................................ ................................ ................................ ........ 294.3.1 Syntax................................ ................................ ................................ ............. 294.3.2 Entering Commands................................ ................................ ....................... 304.3.3 Commonly Used Commands................................ ................................ ......... 304.3.4 Escaping From Continuous Cycle................................ ................................ .. 314.3.5 Ending a Session ................................ ................................ ............................ 314.4 Using SET Menus................................ ................................ ................................ ....... 324.4.1 Moving Forward................................ ................................ ............................. 324.4.2 Moving Backward................................ ................................ .......................... 334.4.3 Exiting ................................ ................................ ................................ ............ 334.5 Setting Initial Parameters................................ ................................ ............................ 334.5.1 Checking System Status................................ ................................ ................. 334.5.2 Setting PA Parameters................................ ................................ .................... 33Section 5. Troubleshooting ................................ ................................ ............... 355.1 Introduction................................ ................................ ................................ ................. 355.2 System Status Indicators ................................ ................................ ............................. 355.2.1 Logic Controller LED Indicators ................................ ................................ ... 355.2.2 Power Supply LED Indicators................................ ................................ ........ 365.2.3 Logic Controller Software Alarms and Monitoring Parameters .................... 365.3 Removing and Replacing Failed Parts................................ ................................ ........ 36Section 6. Specifications................................ ................................ .................... 37Appendix A:TBD ................................ ................................ ......................... A-1Parts & AccessoriesA. Introduction................................ ................................ ................................ .......... Parts-1B. Model Numbers................................ ................................ ................................ ...Parts-1C. Suggested Spares................................ ................................ ................................ .Parts-2D. Replacing Parts and Accessories ................................ ................................ ......... Parts-3

MR Booster Manual (MN001808-1, 7/99)Page 1Section 1. Introduction1.1 About This ManualThis manual provides installation, operating, and maintenance instructions for theMR Booster. It is intended for anyone who installs or maintains MR Boosterequipment.Section 1. Introduction: Provides a brief overview of the manual contents andterminology.Section 2. System Description: Describes the basic functionality, features, andtechnical details of an MR Booster.Section 3. Installation: Explains the procedures for mounting the MR Booster andmaking all connections.Section 4. Setting Up for Initial Operation: Describes the procedures forconnecting and operating a local terminal.Section 5. Troubleshooting: Describes the procedures for locating and fixingproblems that can occur in an MR Booster.Section 6. Specifications: Lists mechanical, electrical, and environmentalspecifications of the MR Booster.AppendicesA. TBDParts & Accessories Order InformationProvides information about MR Booster model and part numbers, and suggestedspares.

1. IntroductionPage 2MR Booster Manual (MN001808-1, 7/99) 1.2 Conventions Used in This ManualThe following special notations are used to draw attention to particularly importantinformation:NOTE: Notes contain helpful hints or reminders of important information.1.3 TerminologyThe following table lists the meanings of frequently used acronyms in this manual.For descriptions of these system components, refer to Section 2.Acronym DefinitionBDABTSMRBi-Directional AmplifierBase Transceiver StationMikom RepeaterTable 1-1. DefinitionsWARNING! Warning statements alert you to situations that cancause equipment damage. Failure to heed warning statements mayvoid any existing warranties.CAUTION: Caution statements alert you to situations that cancause interruption or serious degradation of service. For optimumsystem performance, observe caution statements.

MR Booster Manual (MN001808-1, 7/99)Page 3Section 2. System Description2.1 IntroductionThis section describes the basic functions and features of an MR Booster, including:• System overview• Theory of operation• System components2.2 System OverviewThe MR Booster is a broadband, bi-directional amplifier (BDA) used to extend thecoverage area in a wireless communications network. The booster is specificallydesigned to interface with the MIKOM MR series repeater. It can also be used withan existing repeater or a base transceiver station (BTS) that needs a downlink powerboost.Figure 2-1 illustrates a typical MR Booster application with a repeater, and Figure 2-2 illustrates a typical application with a BTS. The booster is connected directly to thecoverage antenna port from the repeater or BTS and boosts the downlink signalpower while maintaining dynamic range on the uplink. The booster performs severalbasic functions to enhance network coverage:• The repeater or BTS downlink RF output is filtered, amplified and transmitted,via the mobile coverage antenna, using high efficiency RF power amplifiers.• Uplink RF signals from handsets in the coverage area are received at the mobileantenna, amplified by an LNA, and passed directly to the repeater or BTS.• Control and alarm monitoring is maintained by MR repeater software or throughtwo relay contact outputs from the booster.• Power supply and power amplifier soft-fail redundancies offer increasedreliability.• A separate uplink diversity path is available as an option.• Downlink output VSWR monitoring is available as an option.

2. System DescriptionPage 4MR Booster Manual (MN001808-1, 7/99)• The Booster is available in one of two output power options (medium and high)and four frequency ranges:Band Uplink DownlinkAMPS800 full band 824-849 MHz 869-894 MHzLMR8-00 full band 806-824 MHz 851-869 MHzPCS1900 ADB band 1850-1885 MHz 1930-1965 MHzPCS1900 extended EFC band 1875-1910 MHz 1955-1990 MHzTable 2-1. Frequency chartREPEATERDONORANTENNAPORTMOBILEANTENNAPORTREPEATERPORTTO/FROMBTSMRBOOSTER MOBILEPORTCOVERAGEANTENNAI2C BUSCONTROLFigure 2-1. Typical MR Booster Application (Repeater)MRBOOSTERTO/FROMMOBILESWITCHINGOFFICEBTSCOVERAGEANTENNAMOBILEPORTREPEATERPORTCOVERAGEANTENNAPORTFigure 2-2. Typical MR Booster Application (BTS)

2. System DescriptionMR Booster Manual (MN001808-1, 7/99)Page 5Figure 2-3. MR Booster functional block diagram2.3 Theory of OperationA block diagram of the basic high-power MR Booster system is shown in Figure 2-3.In order to simplify the discussion, a repeater-booster installation is assumed as inFigure 2-1.2.3.1 Downlink pathDuplexed RF from the repeater’s coverage antenna port is connected to thebooster downlink port. The repeater duplexer then routes the downlink signalfrequencies to the PA combiner/splitter module.POWERSUPPLYAPOWERSUPPLYB+12V+26V-A +26V-B+12V+12V+26V-A+26V-BLOGICCONTROLLER+12VI2CCONTROL I/ORepeater or BTSmain portRepeater or BTS diversity port+26VMAIN LNADIVERSITY LNAPOWER AMPLIFIERSRPTRDUPLEXERMOBILEDUPLEXERUL FILTERPACOMBINER/SPLITTER PACOMBINER/SPLITTERMain coverageantennaDiversity coverageantenna

2. System DescriptionPage 6MR Booster Manual (MN001808-1, 7/99)The downlink signal frequencies are then routed to the PA combiner/splittermodule by the repeater duplexer. In the high-power option, the RF is splitinto four separate paths by the hybrid combiner/splitter module anddistributed to four RF PAs. In the medium-power option, the RF is split intotwo separate paths and distributed to two RF PAs.NOTE: The multiple amplifiers provide soft-fail redundancy to maintainminimum output power capability should one or more fail in the field.The PA outputs are summed in a second combiner/splitter, then routed to themobile-side duplexer. The duplexer routes the downlink RF output to thecoverage antenna, which transmits to handsets in the booster coverage area.2.3.2 Uplink pathMobile handset transmissions are received at the mobile duplexer port androuted to the LNA input by the mobile duplexer. The amplified LNA outputis then routed to the repeater duplexer, which is connected to the installedrepeater’s coverage antenna port.A diversity option offers a second, identical uplink path when diversity is inuse in the donor BTS or repeater.2.3.3 System controlControl functions include PA keying, fan control, and uplink attenuationsetting. Monitored parameters include PA output power, status, systemtemperature, power supply temperature, DC output voltage and status, andinput power source (ac or dc).Resident software can be accessed via the supplied serial interface cable witha laptop computer and terminal-emulation software to initialize and customizethe unit during installation or to perform troubleshooting.The booster can be remotely controlled after installation with a Mikom MRseries repeater via the I2C bus interface cable.For other applications, or if remote control is not required, a pair of relayclosure outputs from the booster can be user-configured and routed to thedonor system to flag system problems after installation.

2. System DescriptionMR Booster Manual (MN001808-1, 7/99)Page 7Figure 2-4. MR Booster (inside cabinet)PowerSupplyPowerAmplifiersMobileDuplexerUplinkLNALogicControllerBoardRepeaterDuplexerCombiner/Splitter

2. System DescriptionPage 8MR Booster Manual (MN001808-1, 7/99)Figure 2-5. MR Booster (inside door)PowerSupplyPowerAmplifiersCombiner/Splitter

2. System DescriptionMR Booster Manual (MN001808-1, 7/99)Page 92.4 System Components2.4.1 Power SupplyThe MR Booster provides two high-efficiency power supplies with 26 VDCand 12 VDC outputs (see Figures 2-4 and 2-5). The 26 V output is splitevenly between the system PAs to provide soft-fail redundancy. The 12 Voutput is diode-connected at the controller and the LNAs, ensuring that bothwill function if a power supply fails. The power supply has thermalshutdown capability.The AC supply input is auto-ranging to handle 115 and 220 volt, 50 or 60 Hzsystems. During loss of AC mains, the booster will automatically switch overto the DC input for operation with a BBU.2.4.2 Downlink Power AmplifierThe downlink power amplifiers (see Figure 2-4) provide low distortionamplification of downlink RF signals using proprietary feedforwardcorrection techniques. After duplexer, splitter and combiner losses, the PAsprovide 20 dB nominal gain for the booster in the downlink signal path.The amplifiers are powered by the 26 VDC output of the power supplies. Toprovide maximum output power and soft-fail redundancy, the downlink power isshared between either four (high-power option) or two (medium-power option)PAs. Each PA provides output power and temperature status information to thesystem controller and provides both overcurrent and overtemperature protectioncircuitry.2.4.3 Logic Controller BoardThe logic controller board (see Figure 2-4) monitors and controls internalbooster functions, and provides alarms to the donor system. The controllercontains an I2C bus interface for remote control by a Mikom MR seriesrepeater. The controller is powered by the 12 VDC supply.System configuration information is retained in an on-board EEPROM. Forinstallation or troubleshooting, the board-resident software can be accessedfrom an MR repeater, or from an on-site laptop computer. The controller canset:• uplink gain• PA key/unkey• fan speed control (high/low/off)

2. System DescriptionPage 10 MR Booster Manual (MN001808-1, 7/99)The controller monitors the status of the following system components:• PA power output• PA temperature• PA shutdown• power supply temperature• average 26 VDC and 12 VDC output voltages• AC mains presence• VSWR input (when installed)The controller also routes the DC power to the VSWR module.For general use, two alarm outputs are provided that can be user-configuredduring installation. The outputs are normally open relay contact pairs, whichare closed when no alarm condition is present. These signals are provided onfour of the seven pins of a terminal block on the controller board.2.4.4 PA Combiner/Splitter ModuleThe PA combiner/splitter module (see Figure 2-4) splits the input signal,distributes it to the PAs and combines it after amplification. Identical hybriddesign is used to ensure maximum amplitude and phase matching of thedownlink signal.2.4.5 Uplink Low Noise AmplifierThe LNA (see Figure 2-4) maintains dynamic range for uplink mobilesignals. The LNA provides low noise figure and high input IP3 so the boosterdoes not decrease sensitivity or increase distortion in the system.The gain of the LNA chain after duplexer and cable losses is nominally 20 dBwith the uplink attenuation set to 0 dB. Using the internal software, the gaincan be reduced by increasing the attenuation in 1 dB steps up to 15 foroptimal IP3, or where equal uplink and downlink booster gain is notnecessary. The same LNA is used in the diversity option and the attenuationsetting is ganged so each uplink path is set for equal gain.

2. System DescriptionMR Booster Manual (MN001808-1, 7/99)Page 112.4.6 DuplexersThe duplexers (see Figure 2-4) provide isolation between uplink anddownlink paths, and band-limit the signals that are either passed to the donorhardware, or transmitted at the mobile antenna. The small repeater duplexerprovides adequate UL/DL isolation. The mobile duplexer offers low insertionloss to maximize downlink output power and uplink noise figure. Forwardand reverse directional coupler outputs are provided on the mobile duplexer.The coupler outputs are routed to the VSWR module when that option isinstalled.2.4.7 RF CablesThe RF cables are a critical part of the MR Booster, particularly in thedownlink function. Low loss provides maximum output power and cablepropagation delays must be properly controlled so that the amplifiers arecombined with low phase error.2.4.8 Fan Assembly (High-power only)Dual DC fans (not shown) maintain a low cabinet temperature in the highpower option. The fans are sealed to withstand all weather conditions. Theplenum and ducting structure of the booster is designed to move air over allheat fins, even if one fan fails. The fans can be disabled or operated at lowspeed for climates where over-heating will not be a problem. The logiccontroller provides the fan interface.2.4.9 VSWR Module (Optional)The VSWR module (not shown) monitors the downlink output VSWR. Thecustomer is alerted to potentially damaging antenna mismatch. The modulereceives ± 12 VDC from the controller and coupled outputs from the mobile sideduplexer. The coupled signals are processed the output VSWR is routed to thelogic controller.CAUTION: Never substitute RF cables in the booster. Use onlyproper MIKOM part numbers.

2. System DescriptionPage 12 MR Booster Manual (MN001808-1, 7/99)2.4.10 Downlink Driver Amplifier (Optional)An ultra-linear driver amplifier (not shown) provides more downlink gain orboosts the linear output power. Contact technical support for availability anddetails.Figure 2-5. Input/output panel2.4.11 Input/Output PanelAll system inputs and outputs are accessible from the bottom panel of thecabinet (see Figure 2-5). All RF connectors are 7-16 female bulkhead. Allunused RF ports have gasketed plates covering the connector cutout.Control, alarm, and power connections are made via multi-conductor cablesrouted through weatherproof glands. Unused glands are filled with removableplugs.NOTE: The customer is responsible for ensuring a weatherproof seal onglands not set up in the factory.Following are the descriptions of the available I/O connections:• Repeater Duplexer or DL (optionally repeater DL only): Connected tothe repeater’s mobile coverage antenna port. It accepts downlink signalsfrom the repeater and outputs the uplink RF to the repeater.NOTE: If the MR Booster must interface with a non-duplexed system,this port can be used to route the downlink output from the repeater to thebooster.• Repeater UL (optional): This port is used only when the repeater hasnon-duplexed mobile input and output. The uplink output is then routedthrough this connector from the booster to the repeater.

2. System DescriptionMR Booster Manual (MN001808-1, 7/99)Page 13• Mobile Duplexer: Connected to the repeater’s coverage antenna.• Diversity In (optional): The diversity coverage (mobile) antenna isconnected to the diversity input port.• Diversity Out (optional): The diversity output is routed to the repeater’suplink diversity path input port.• AC IN gland: The AC input cable is passed through this gland andconnected to the WAGO terminal block inside the cabinet.• DC IN gland: If a DC input is used, the multi-conductor cable is passedthrough this gland and distributed to the DC input connector of the powersupplies. Contact the factory for further details if using a customer-supplied BBU or DC source.• I2C gland: The I2C control cable is routed through this gland andconnected to the logic controller board inside the cabinet. The far end ofthe cable is connected to the MR series repeater control bus.• BBU signal gland: This gland is provided to interface to a BBU alarm orsense output.

MR Booster Manual (MN001808-1, 7/99)Page 15Section 3. Installation3.1 IntroductionThis section describes the procedures for installation of an MR Booster and systemoptimization. The Installation Checklist at the end of this section provides a concisesummary of the installation steps. Section 4 will provide initial software instructions.3.2 Site SelectionThe site chosen for the MR Booster must meet requirements related to location,power, space, mounting surface, environment, and antenna isolation.3.2.1 Equipment InventoryThe following table lists items shipped with the MR Booster. Use a separatetable for each booster installed.MR BoosterSite: Installer:q MR Booster Serial #:Tuck Pack:q Manualq 6mm T-handle wrenchq 4mm T-handle wrenchq 3mm T-handle wrenchq I2C bus cableq Serial cableq Drilling templateq Keys for security coverSerial Part #:MN001808-1G71A0031-2G71A0031-3G71A0031-1G15A0309-1G15A0327-1G27AT000-1???N/A Table 3-1. Equipment List

3. InstallationPage 16 MR Booster Manual (MN001808-1, 7/99)3.2.2 Installation Tools and EquipmentYou will need the following tools and equipment for installation of the MRBooster:Factory supplied:• 6mm T-handle wrench to mount cabinet to bracket• 4mm T-handle wrench to open/close cabinet door• DB-9 to DB-9 serial control cable• I2C bus cable (if applicable)Customer supplied:• M8 carriage bolts, flat washers, split lock washers, and drivers to bolt themounting bracket to a wall or pole• Laptop computer with serial port and terminal emulation software (e.g.,ProComm)• Coaxial RF cables terminated with a 7-16 male connectorü for donor portü for repeater port or RX port (if applicable)ü for diversity input (if applicable)ü for diversity output (if applicable)ü for TX port (if applicable)• >30 dB, 60 W attenuator• RF power meter with 20 dBm power-handling capability• Miscellaneous RF test cables and adapters3.2.3 Site RequirementsSpace: The MR Booster dimensions are 742 mm (H) x 466 mm (W) x 287mm (D) (29.2 x 18.3 x 11.3 inches) with fans, 535 mm (H) (21.1 inches)without fans. Allow a minimum of 500 mm in front of the booster for doorclearance, 30 mm below for cable access, and 150 mm on either side foraccess to mounting hardware.Mounting surface: The cabinet should be mounted to a vertical surface witha load-bearing capacity of at least 55 kg. It may be mounted to a wall or apole.

3. InstallationMR Booster Manual: (MN001808-1, 7/99)Page 17Environment: The MR Booster is in a weatherproof cabinet that can beoperated at ambient temperatures between -30°C to +55°C.Power: The cabinet requires 90-264 VAC, 50-60 Hz at 600 Watts maximum,or 21-28 VDC, 20 Amps maximum (when equipped for DC operation).Antenna isolation: When the MR Booster is used with a repeater, theisolation between the donor and mobile antennas must be at least 15 dBgreater than the composite system gain of the repeater plus booster foroptimum performance.3.3 Installation3.3.1 MechanicalUse the supplied template, shown in Figure 3-1, to drill holes to mount theMR Booster mounting bracket. Install the mounting bracket with two M8carriage bolts for pole mounting, and four M8 carriage bolts for surfacemounting. Use a flat washer and split lock washer under the head of eachbolt.Lift the repeater up and set the top M10 screws into the recesses provided inthe top of the mounting bracket. Align the holes in the cabinet with the holesin the mounting bracket, then install and tighten the four M8 socket-head capscrews using the supplied 6mm T-handle wrench.To access the inside of the cabinet (see Figure 3-2), use the supplied 4mm T-handle wrench to unscrew the four M5 socket-head cap screws that secure thedoor to the main cabinet.WARNING! The MR Booster may weigh up to 51 kg(112.4 lbs), depending on options; use two people to lift thebooster onto the mounting bracket.

3. InstallationPage 18 MR Booster Manual (MN001808-1, 7/99)Figure 3-1. Drilling template (not to scale)

3. InstallationMR Booster Manual: (MN001808-1, 7/99)Page 19Figure 3-2. Door access screwsDoorAccessScrews

3. InstallationPage 20 MR Booster Manual (MN001808-1, 7/99)3.3.2 Electrical ConnectionsAC: The unit is shipped with the internal AC connections already made. Thecable extends 10 feet outside the cabinet to allow termination to a junctionbox or other connection to the AC mains. Since the power supply inputs areautoranging, no special accommodations are required to connect to standardvoltage and frequency.The wires are attached to a WAGO connector inside the cabinet as follows:Wire Color WAGO ColorBrown (hot) GrayBlue (neutral) BlueGreen/Yellow (ground) Screwed to ground lugTable 3-2. Wire ChartDC: Please consult MIKOM at 1 (800) 800-3224 for applications with acustomer-owned DC power source or battery-backup unit.

3. InstallationMR Booster Manual: (MN001808-1, 7/99)Page 21Figure 3-3. I/O connections3.3.3 RF ConnectionsRF cables to the MR Booster must be terminated with a 7-16 male RFconnector. A low-loss, 50 ohm cable with superior shielding is recommendedfor all RF connections. See Section 2.4.11 for I/O options.Minimum configuration (see Figure 3-3) consists of two cables:• From the duplexed port of the donor repeater to the Repeater Duplexerconnector on the booster.• From the Mobile Duplexer port of the booster to the coverage antenna.

3. InstallationPage 22 MR Booster Manual (MN001808-1, 7/99)Figure 3-4. Logic Controller Board3.3.4 Logic Controller BoardSeveral connections are made through the I/O panel on the bottom of therepeater. Figure 3-5 shows the position of applicable connectors.I2C bus: To enable control functions, such as alarms, from a Mikom repeater,connect the supplied I2C cable connector to J7 on the logic controller board.Pass the cable through the I2C gland on the I/O panel. The cable can then berouted to the MR Repeater’s I2C connector.Serial control: Connect the female DB-9 end of the supplied serial cable toJ6 on the logic controller board. Route the cable through the door of thebooster and close it (the door seal will prevent the cable from being crushed).Connect the male end of the serial cable to serial port 1 of the laptopcomputer. After initialization or troubleshooting has been completed, thiscable can be removed.J1TerminalBlockJ6SerialConnectionJ7I2C BusConnection

3. InstallationMR Booster Manual: (MN001808-1, 7/99)Page 23Alarm outputs: The alarm output wires are available from terminal block J1on the logic controller board. A multiple-conductor cable must be passedthrough the I2C gland. The alarm function is defined through software in theinitialization process. Pin out is as follows:Pin Function1Alarm 12Alarm 1 return3Alarm 24Alarm 2 return5External digital alarm input (optional)0-5 V TTL level input6Ground reference7External analog alarm input (optional)0-30 V analog alarm inputTable 3-3. Alarm pin outWARNING! Inspect the unit after cabling to ensure that unusedconnector holes have plates and gaskets applied, and that unusedglands have stops inserted. All connections should be completedand weatherproofing ensured before AC mains or DC power isapplied.

3. InstallationPage 24 MR Booster Manual (MN001808-1, 7/99)3.4 Installation ChecklistThe following checklist provides a summary of the procedures for installing an MRBooster system.Step Item/ Action Description Check1MR Booster Site Drawing Master copy of the site plan noting the MRBooster location and serial number.2Equipment List:MR BoosterAC or DC power sourceUplink sourceDownlink source3Installation tools:M8 carriage bolts To install mounting bracket6mm and 4mm drivers To mount cabinet to bracket, open doorSerial control cable To connect terminal to boosterterminal To initialize boosterI2C bus cable (if applicable)Coaxial cables>30 dB, 60 W attenuatorRF power meterMiscellaneous RF test cables4Run cable to site Power, uplink, downlink, I2C (if applicable)5Mount the equipment See Section 3.3.6Attach cables Power, uplink, downlink, I2C (if applicable),alarm outputs (if applicable)7Connect terminal to J6 on thelogic controller board For initialization.8Power up booster9Initialize booster See Section 4, Setting Up for Initial Operation10 Close cabinet and screw shut11 Optimize system See Section 3.5, System OptimizationTable 3-4. Installation checklist

3. InstallationMR Booster Manual: (MN001808-1, 7/99)Page 25REPEATERDONORANTENNAPORTMOBILEANTENNAPORTREPEATERPORTTO/FROMBTSMRBOOSTER MOBILEPORTCOVERAGEANTENNAI2C BUSCONTROLFigure 3-5. Typical MR Booster Application (Repeater)3.5 System OptimizationRefer to Figure 3-5 for an example of an application in which the MR Booster is usedto boost a repeater. For additional information regarding system optimization, pleasecontact Mikom technical support at 1 (800) 800-3224.3.5.1 Downlink Gain SettingThe downlink gain is generally determined by the output power that providescoverage of the hole that the MR Booster is filling. This power should notexceed the specifications in Section 6 for differing technologies and numberof carriers. The gain of the repeater must be adjusted via the operationalsoftware so that the desired output power equals the system gain (repeaterplus booster) plus the input power received from the BTS.The input power can be determined from the downlink RSSI reading of therepeater for each applicable RF channel. For greatest accuracy, the factorytest data sheet enclosed with the MR Booster can be used to determine thebooster gain near each channel of interest.3.5.2 Downlink Power MeasurementTo ensure that the proper output power is reached, measure the compositepower coming out of the mobile duplexer port. Use a power meter capable ofhandling 100 mW with a 30 dB, 60 W power attenuator on the mobileconnector for an accurate measurement without damage. The compositepower measured by the meter, after calibrating out the loss of the attenuator,should be approximately equal to the desired power per carrier plus 10logN,where N is the number of carriers.

3. InstallationPage 26 MR Booster Manual (MN001808-1, 7/99)3.5.3 Uplink Gain SettingIn most cases, the repeater gain is adjusted to make the uplink gain equal tothe downlink gain to maintain a balanced link. Adjust the repeater gain, leavethe MR Booster LNA gain set to maximum, and the overall system noisefigure is minimized.In cases where unusually strong in-band interferers are present, it may benecessary to decrease the LNA gain in order to increase the overall systeminput intercept point. The amount of attenuation added depends on therequired system intercept point, – the maximum allowable system noisefigure and the dynamic range of the repeater.

MR Booster Manual (MN001808-1, 7/99)Page 27Section 4. Setting Up for Initial Operation4.1 IntroductionAll MR Booster operating parameters are under software control and can be changedfrom a terminal connected via serial link to the booster. The booster has defaultsettings for optional parameters. These parameters may need to be adjusted forproper operation in your network.This section describes procedures for:• Connecting the terminal• Becoming familiar with system commands• Programming initial parametersThe checklist in Table 4-1 presents a brief overview of these procedures. Fordescriptions of all operating parameters, see Appendix A, Control Software. Ifproblems occur during setup, refer to Section 5, Troubleshooting.

4. Setting Up for Initial OperationPage 28 MR Booster Manual (MN001808-1, 7/99)Table 4-1. Setup Checklist4.2 Connecting a TerminalThe MR Booster can communicate with a PC running a terminal-emulation programsuch as ProComm, or a conventional ASCII, RS-232 terminal.1. Using the supplied serial cable, connect the PC COM PORT to J-1 on thecontroller board (see Figure 3-4 on Page 22).2. Power up the terminal and set it to the following parameters:• 9600 baud• Non parity• 8 data bits, 1 stop bit• Full duplex (no local echo)• Send carriage return only• Disable AUTO XON/XOFFNOTE: Some terminal emulation programs generate extraneous characters thatmay cause interference when communicating with the booster.Setup Checklist?1. Terminal connected:?a. Terminal powered up and set to 9600-N-8-1, full duplex, send carriage returnonly, no CTS/RTS, no XON/XOFF.?b. MR Booster repeater powered up.?2. System status (SSS) and alarm (ALA) report checked; no DISABLED and noalarms shown.?3. System parameters programmed:?a. Gain?b. PA settings reviewed.?c. Alarm settings reviewed.?d. Alarm report reset (ALA=0, press Enter).?4. RF performance checked.

4. Setting Up for Initial OperationMR Booster Manual: (MN001808-1, 7/99)Page 293. Power up the MR Booster. After about two seconds, the terminal should respondwith a welcome message.• If the response is garbled, check the terminal setup.• If there is no response, turn the booster OFF, then ON again. If there is stillno response, turn the unit OFF. Recheck the power hookup and the terminalhookup and configuration.4.3 Basic CommandsFollowing are basic rules and key commands for use with the MR Booster operatingsoftware.Symbol Definition><CTRL><ESC>Command Prompt. The system uses this prompt character to indicateit is ready to accept commands.Control Key. Used in combination with other keys.Escape Key. Escape is a single key marked ESC on most keyboards.Table 4-2. Command Definitions4.3.1 SyntaxSystem commands consist of three letters followed by a maximum of threedata fields, as follows:COM [FIELD 1 -] [FIELD 2 =] [FIELD 3] Enter• COM: Three-letter command.• FIELD 1: Up to four hex characters followed by a dash (-).• FIELD 2: Up to four hex characters followed by an equal (=) sign.• FIELD 3: Up to two hex characters.• Enter: Press the Enter key after each command.NOTE: Few commands require entry of data fields. After a command hasbeen entered, the system will prompt for data it needs. The system will ignoreunneeded data fields.

4. Setting Up for Initial OperationPage 30 MR Booster Manual (MN001808-1, 7/99)4.3.2 Entering CommandsWhen entering commands:• After the three-letter command has been entered, spaces may be added toseparate the fields.• Leading zeros may be omitted.• Use DELETE or BACKSPACE to correct mistakes.• Press Enter at the end of each command.4.3.3 Commonly Used CommandsTable 4-3 lists the most commonly used commands. The most complexcommand is SET. This command is structured to ensure that parameter entrycan be done easily and accurately. The other commands, which are muchsimpler, require little or no subsequent data input. Their actions are completedin a matter of seconds.NOTE: To become familiar with these commands, try each command(except SET) and observe the system's response.CAUTION: RES will momentarily interrupt any callscurrently being boosted. Otherwise, the system commands donot interfere with calls being boosted.

4. Setting Up for Initial OperationMR Booster Manual: (MN001808-1, 7/99)Page 31Command Meaning PurposeHEL Help Lists the syntax and function of the primarycommands.HEL A Help All Lists the syntax and function of all commands.SET Set up Prompts a menu-driven entry mode used to inspector change all MR Booster operating parameters.(To exit this command, press <CTRL> X and answerN, press Enter.)SSS Show System Status Lists current repeater parameter settings andconditions of monitored input parameters.ALA Alarm report Reports on number of alarm conditions since lastsystem reset.RES Reset Resets the booster. Parameters in effect when thecommand is issued will be saved.PWR Power display Repeatedly lists power readings on the PAs.(To exit this command, press <ESC> or <CTRL> Z.)Table 4-3. System Commands4.3.4 Escaping From Continuous CyclesSome commands, such as RSS, enter a mode in which the program doessomething continuously. To get out of this mode and return to the commandprompt, press <ESC> or <CTRL> Z.4.3.5 Ending a SessionThe RES command preserves extensive parameter changes made during asession. It ensures that all parameter changes take effect, since all hardware isinitialized after a reset. Also, all alarms conditions counter to 0.

4. Setting Up for Initial OperationPage 32 MR Booster Manual (MN001808-1, 7/99)Figure 4-1. SET Command Menu Map4.4 Using SET MenusUse the local terminal to configure the MR Booster. From the command prompt (>),the SET command launches the setup utility, which displays a progression of menus.The menus provide a guided path to each booster parameter. The menu map inFigure 4-1 illustrates the SET menu paths. For descriptions of all SET menus andcommands, see Appendix A, Control Software.4.4.1 Moving ForwardAfter each command has been entered, a menu is displayed, with a characterin front of each item. To select an item, type the character and press Enter.The next menu (or the parameter to be changed) will be displayed.MAIN MENU AMPLIFIERSPOWER SUPPLIESACCESSORIESALARMSTYPEMAX POWER ALARM POINTMIN POWER ALARM POINTPOWER SUPPLY 1-2FAN CONTROLVSWRMAX POWER SUPPLY TEMPMAX PA TEMPEXTERNAL I/OCRITICAL ALARMSLNA ATTENUATOR SETTINGPOWER SUPPLY TYPEDIGITAL INPUT ALARM STATEANALOG INPUT THRESHOLDANALOG INPUT ALARM STATEOUTPUT 1 STATEOUTPUT 2 STATEPA POWER HI ALARMPA POWER LO ALARMPA TEMP HI ALARMPA OUT OF SERVICE ALARMPA OVERCURRENT/OVERDRIVE ALARMAC POWER LOST ALARMPOWER SUPPLY REGULATION ALARMVSWR HI ALARMDOOR OPEN ALARMEXTERNAL DIGITAL INPUT TRIPPEDEXTERNAL ANALOG INPUT TRIPPEDEXTERNAL ROM ALARMEEPROM ALARM

4. Setting Up for Initial OperationMR Booster Manual: (MN001808-1, 7/99)Page 334.4.2 Moving BackwardTo move backward along a path, type X and press Enter. This indicates a"Done with this menu" selection. The previous menu will be displayed.Continue to back out to the main SET menu.4.4.3 ExitingTo exit SET, press <CTRL> X at any menu level. Or, type X and pressEnter while at the main menu level.4.5 Setting Initial ParametersThe MR Booster is shipped with the filters set to default center frequencies. Beforeoperating the unit, set initial parameters. This includes:• Checking system status.• Configuring the system for narrowband or wideband (channel number, bandoffset, and gain).• Reviewing and recording power amplifier and alarm settings.Setting these parameters is the minimum required to provide performance. Allparameters can be changed to fine-tune the system as more information is gatheredabout system performance.4.5.1 Checking System StatusCheck the system status to be sure parameters were properly set after factorytesting.1. At the > prompt, type SSS, press Enter. (The current state of variousparameters is displayed.)2. At the > prompt, type ALA Enter. (The number of alarm conditionssince last reset is displayed.)No alarms should be listed. If there are any Out-of-Service or memoryalarms, refer to Section 5, Troubleshooting.4.5.2 Setting PA ParametersFrom the Main Menu, type B, press Enter to display the Power AmplifiersMenu.

4. Setting Up for Initial OperationPage 34 MR Booster Manual (MN001808-1, 7/99)Use the following guidelines and recommendations to set the power amplifierparameters. These settings should provide serviceable operation. Refer toSection 3.5, System Optimization, to fine-tune and optimize the settings.Downlink PA Power High Alarm Point: Set to +33 43 dBm to trigger analarm at that setting.Downlink PA Power Low Alarm Point: Must be set to 6 dB below theForward Maximum Wideband Power. Once initial operation is established,use the SSS command (see Appendix A, SSS Command) to examine thedownlink PA power output under normal operating conditions. Adjust thedownlink PA Power Low Alarm Point to a few dB below the normaloperating power.Power Amplifiers MenuADownlink PA Power High Alarm Point...................... +33 43 dBmBDownlink PA Power Low Alarm Point ...................... +20 dBm

MR Booster Manual (MN001808-1, 7/99)Page 35Section 5. Troubleshooting5.1 IntroductionThis section describes methods for locating and resolving problems in an MRBooster. Instructions are given for replacing some of the major modules in thesystem; however, it is recommended that Mikom technical support personnel performall MR Booster maintenance. Please call 1 (800) 800-3224 for assistance.5.2 System Status IndicatorsThe MR Booster has visual indicators on the logic controller and the power suppliesthat are the first indicators of basic system functionality. All other troubleshootingtools are contained within the user software.5.2.1 Logic Controller LED IndicatorsA green and a red LED on the logic controller board indicate the followingconditions:Green LED Red LED Operational StatePulsing OFF Normal state, no alarms.OFF ON Indicates power applied, but operationalsoftware is not running properly.OFF OFF No +12 VDCTable 5-1. Logic controller status indicators

5. TroubleshootingPage 36 MR Booster Manual (MN001808-1, 7/99)5.2.2 Power Supply LED IndicatorsEach power supply has two green LEDs, which indicate:AC GOOD DC GOOD BDASTATUSON OFF AC input present; DC output not functioningproperly.ON ON AC input present; DC +26 V/+12 V outputsOK.OFF OFF AC power not present; DC source not presentor out of proper voltage range.OFF ON AC power not present; DC input present and+26 V/12 V outputs OK.Table 5-2. Logic controller status indicators5.2.3 Logic Controller Software Alarms and Monitoring ParametersThe SSS command, which displays the general status of the booster modules,and the SET command, which is used to monitor or set operating parameters,can be used to find component failures. See Section 4 and Appendix A for adetailed description of the software. Please contact Technical Support at 1(800) 800-3224 for assistance in troubleshooting system problems.5.3 Removing and Replacing Failed PartsIt is recommended that only higher failure rate and easily accessible items beremoved from the booster cabinet. The supplied 3mm T-handle wrench may be usedto remove and/or replace a power supply or power amplifier.Other hardware can be removed from the booster with either standard-size metricAllen keys or Phillips screwdrivers.WARNING! It is recommended that trained Mikom techniciansprovide service for the MR Booster. Always remove both AC andDC system power before servicing.

MR Booster Manual (MN001808-1, 7/99)Page 37Section 6. Specifications6.1 SpecificationsThis section provides mechanical and electrical specifications for the MR Booster.Mechanical SpecificationsDimensions 742 mm (H) x 466 mm (W) x 287 mm (D), with fans(29.2 in x 18.3 in x 11.3 in)535 mm (H) x 466 mm (W) x 287 mm (D), without fans(21.1 in x 18.3 in x 11.3 in)Weight(approximate, fully populated) 51 kg (112 lbs), 4 PAs, with fans45 kg, (99 lbs) 2 PAs without fansOperating temperature -30°C to +55°CAlarm outputs(user configurable – availablethrough I2C/alarm gland)Alarm 1: Closed relay contact indicates alarm stateAlarm 2: Closed relay contact pair indicates systemalarm stateRF I/O(7-16 female connectors) Repeater UL/DLMobile AntennaUL diversity input (optional)UL diversity output (optional)Repeater DL only (optional)Other I/O(4 weatherproof glands) AC inputDC inputBBU alarmI2C/alarmTable 6-1. Mechanical specifications

6. SpecificationsPage 38 MR Booster Manual (MN001808-1, 7/99)Electrical SpecificationsPower requirements 90-265 Vac, 50-60 Hz: 600 W max (fully loaded)Automatic switchover to BBU with loss of AC mains21-26 Vdc, 20 A max (fully loaded)Frequency bands(uplink/downlink) AMPS800 full band: 824-849/869-894 MHzLMR8-00 full band: 806-824/851-869 MHzPCS1900 ADB band: 1850-1885/1930-1965 MHzPCS1900 extended EFC band: 1875-1910/1955-1990 MHzDownlink gain 20 dB nominal, 19 dB minimum at upper band edgeDownlink gainvariation ±1 dB over any frequency band at 25°C±2 dB over -30°C to +55°C ambientUplink attenuationsetting(main and diversity)0 dB to 15 dB from maximum gain in monotonic 1 dB stepsUplink gain variation ±1 dB over any frequency band at 25°C±2 dB over -30°C to +55°C ambientUplink noise figure(main and diversity) 3 dB typical at 0 dB attenuationUplink input IP3(main and diversity) 10 dBm typical# ofcarriers GSM1900,analog:med/high pwrTDMA:med/high pwr CDMA, iDEN:med/high pwr142.5* 45.0* 42.5 45.0 39.5 42.0239.5 42.0 36.5 39.0 33.5 36.0435.5 38.0 32.5 35.0 30.5 33.0Downlink output powerper communicationformat(typical performance at25°C)831.5 34.0 29.5 32.0 27.5 30.0Table 6-2. Electrical specifications* Limited by maximum PA current.

6. SpecificationsMR Booster Manual (MN001808-1, 7/99)Page 39Electrical Specifications (Continued)Control modes Stand-alone serial mode: Uplink gain, booster control, andmonitor signals passed via DB-9 connector on controller PCB(pre-operational), alarms outputs available via I 2C/alarm gland(operational).Repeater control: All booster control and monitor functionsmaintained through MR-701/801 repeater software withcommunication via I2C bus.Stand-alone manual mode: Uplink gain set via switch oncontroller PCB, alarms outputs available via I 2C/alarm gland.Control parameters PA 1-4 shutdownFan 1, 2 speed control (high, low, off)Uplink LNA attenuation setting (0-15 dB)Monitor parameters PA 1-4 output powerPA 1-4 temperaturePower supply 1, 2 temperaturePower supply average DC output voltages (+26 V, +12 V)Module alarms PA 1-4 shutdownac mains 1, 2 power absentTable 6-2. Electrical specifications (Continued)IndoorCoverage

MR Booster ManualAppendicesOrder No. MN001808-1Issue 7/99© Copyright 1999 MikomAll Rights Reserved

MR Booster Manual: Appendices (MN001808-1, 7/99)Page iiiContentsPage

MR Booster Manual: Appendices (MN001808-1, 7/99)Page A-1Appendix A: Control SoftwareA.1 IntroductionExtensive monitoring software included with the MR Booster allows the installer orservice provider to control and monitor the system's performance.This section includes a description of the terminal interface to the booster, which isused to set parameters, monitor system status, and report and diagnose problems. Itincludes procedures for entering commands and setting parameters and providesinformation on interpreting the results.For instructions on installing the MR Booster, setting initial parameters, and makingadjustments to achieve optimum performance, refer to Section 3, Installation, andSection 4, Setting Up for Initial Operation.A.2 Connecting a TerminalThe MR Booster can communicate with a PC running a terminal-emulation programsuch as ProComm, or a conventional ASCII, RS-232 terminal.1. Using the supplied serial cable, connect the PC COM PORT to J-1 on thecontroller board (see Figure X-X).2. Power up the terminal and set it to the following parameters:• 9600 baud• Non parity• 8 data bits, 1 stop bit• Full duplex (no local echo)• Send carriage return only• Disable AUTO XON/XOFFNOTE: Some terminal emulation programs generate extraneous characters thatmay cause interference when communicating with the booster.

A. Software ControlPage A-2MR Booster Manual: Appendices (MN001808-1, 7/99)3. Power up the MR Booster. After about two seconds, the terminal should respondwith a welcome message.• If the response is garbled, check the terminal setup.• If there is no response, turn the booster OFF, then ON again. If there is stillno response, turn the unit OFF. Recheck the power hookup and the terminalhookup and configuration.A.3 Basic CommandsFollowing are basic rules and key commands for use with the MR Booster operatingsoftware.Symbol Definition><CTRL><ESC>Command Prompt. The system uses this prompt character to indicateit is ready to accept commands.Control Key. Used in combination with other keys.Escape Key. Escape is a single key marked ESC on most keyboards.Table A-1. Command DefinitionsA.3.1 SyntaxSystem commands consist of three letters followed by a maximum of threedata fields, as follows:COM [FIELD 1 -] [FIELD 2 =] [FIELD 3] Enter• COM: Three-letter command.• FIELD 1: Up to four hex characters followed by a dash (-).• FIELD 2: Up to four hex characters followed by an equal (=) sign.• FIELD 3: Up to two hex characters.• Enter: Press enter at the end each command.NOTE: Few commands require entry of data fields. After a command hasbeen entered, the system will prompt for data it needs. The system will ignoreunneeded data fields.

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-3A.3.2 Entering CommandsWhen entering commands:• After the three-letter command has been entered, spaces may be added toseparate the fields.• Leading zeros may be omitted.• Use DELETE or BACKSPACE to correct mistakes.• Press Enter at the end of each command.A.3.3 Commonly Used CommandsTable A-2 lists the most commonly used commands. The most complexcommand is SET. This command is structured to ensure that parameter entrycan be done easily and accurately. The other commands, which are muchsimpler, require little or no subsequent data input. Their actions are completedin a matter of seconds.NOTE: To become familiar with these commands, try each command(except SET) and observe the system's response.CAUTION: RES will momentarily interrupt any callscurrently being boosted. Otherwise, the system commands donot interfere with calls being boosted.

A. Software ControlPage A-4MR Booster Manual: Appendices (MN001808-1, 7/99)Command Meaning PurposeHEL Help Lists the syntax and function of the primarycommands.HEL A Help All Lists the syntax and function of all commands.SET Set up Prompts a menu-driven entry mode used to inspector change all MR Booster operating parameters.(To exit this command, press <CTRL> X and answerN, press Enter.)SSS Show System Status Lists current repeater parameter settings andconditions of monitored input parameters.ALA Alarm report Reports on number of alarm conditions since lastsystem reset.RES Reset Resets the booster. Parameters in effect when thecommand is issued will be saved.PWR Power display Repeatedly lists power readings on the PAs.(To exit this command, press <ESC> or <CTRL> Z.)Table A-2. System CommandsA.3.4 Escaping From Continuous CyclesSome commands, such as RSS, enter a mode in which the program doessomething continuously. To get out of this mode and return to the commandprompt, press <ESC> or <CTRL> Z.A.3.5 Ending a SessionThe RES command preserves extensive parameter changes made during asession. It ensures that all parameter changes take effect, since all hardware isinitialized after a reset. Also, all alarms conditions counter to 0.

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-5A.4 SET CommandFrom the command prompt (>), the SET command launches the setup utility, whichdisplays a progression of menus. The menus provide a guided path to each boosterparameter. The menu map in Figure A-1 illustrates the SET menu paths. Table A-3summarizes the alarm parameters that can be programmed using the SET command.• Moving Forward: After each command has been entered, a menu is displayed,with a character in front of each item. To select an item, type the character andpress Enter. The next menu (or the parameter to be changed) will be displayed.• Moving Backward: To move backward along a path, type X and press Enter.This indicates a "Done with this menu" selection. The previous menu will bedisplayed. Continue to back out to the main SET menu.• Exiting: To exit SET, press <CTRL> X at any menu level. Or, type X and pressEnter while at the main menu level.

A. Software ControlPage A-6MR Booster Manual: Appendices (MN001808-1, 7/99)Figure A-1. SET Command Menu Map

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-7Parameter Options Default DescriptionPA TEMP - HIGH ALARM POINT 0 (Disabled)1−100° C 90° C Defines PA temperature alarmcondition.DC POWER - LOW ALARM POINT 0 (Disabled)0.1−14.9 Volts10.0 Volts Alarm thresholds for power supplyvoltagesAC POWER LOST - ALARM POINT 0 (Disabled)1−25010 x 0.1minutes Defines duration of no ac for alarm.PS TEMP ALARM EnabledDisabled Enabled Enables alarm for power supplyover temperature.DOOR OPEN ALARM EnabledDisabled Enabled Enables door open alarm.EXTERNAL ANALOG INPUTALARM STATE (For each of 3 inputs) 0−5 volts 0.0 Vdc Defines alarm condition on thethree analog inputs.(0) Disabled(1) Above threshold(2) Below thresholdDisabled Defines alarm conditions on thethree analog inputs.EXTERNAL DIGITAL INPUT ALARMSTATE (For each of 3 inputs) (0) Disabled(1) High(2) LowDisabled Defines alarm conditions on thethree general-purpose inputs.EXTERNAL DIGITAL OUTPUTCURRENT STATE (For 2 outputs) (1) High(2) Low(3) High if alarm. . .(4) Low if alarm. . .Low Defines state of the two general-purpose outputs.Parameter Options Default DescriptionCRITICAL ALARMS:PA Out-of-Service AlarmPA Temp - High AlarmPA Power - Low AlarmROM AlarmRAM AlarmNOVRAM AlarmPS Voltages - Low AlarmAC Power Lost AlarmPS Temp AlarmDoor Open AlarmExternal Analog Input AlarmExternal Digital Input - AlarmsLog only orCritical CriticalCriticalCriticalCriticalCriticalCriticalCriticalCriticalCriticalCriticalCriticalCritical"Log only" alarmoccurrences will be logged;total number of occurrencescan be viewed using theALA command."Critical" alarms will notonly be logged, but also ???Table A-3. Alarm Parameters

A. Software ControlPage A-8MR Booster Manual: Appendices (MN001808-1, 7/99)A.4.1 Main MenuEntry: At the > prompt, type SET, press Enter.Menu:Purpose: Gives access to setup menus.NOTE: Use caution with selection E, Set Defaults.A.4.2 Power Amplifiers MenuEntry: From the Main Menu, at the > prompt, type B, press Enter.Menu:Purpose: Gives access to each PA parameter.A: Forward PA Power High Alarm PointEntry: From the Power Amplifiers Menu, type A, press Enter.Purpose: To define the maximum acceptable RF power output. If thelevel exceeds that figure, an alarm will be logged.Options:• Allowable range: +20 to +35 dBm• Default: +33 dBmMain Setup MenuBPower Amplifiers MenuDAlarms MenuESet DefaultsPower Amplifiers Menu DefaultAForward PA Power High Alarm Point ................................ ..+33 dBmBForward PA Power Maximum AGC Threshold...................... +31 dBmCForward PA Power Low Alarm Point................................ ....+20 dBmDReverse PA Power High Alarm Point................................ ....+33 dBmEReverse PA Power Maximum AGC Threshold...................... +31 dBmFReverse PA Power Low Alarm Point................................ .....DISABLED

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-9B: Forward PA Power Maximum AGC ThresholdEntry: From the Power Amplifiers Menu, type B, press Enter.Purpose: To set the RF power level at which the booster will begin tocut back gain. If this level is exceeded, the gain is reduced by 4 dBevery Gain Control Period until the RF power level is below the AGCthreshold or until the PA is shut down.Options:• Allowable range: +20 to +35 dBm• Default: +31 dBmC: Forward PA Power Low Alarm PointEntry: From the Power Amplifiers Menu, type C, press Enter.Purpose: To define the minimum acceptable RF power output. If thelevel exceeds that figure, an alarm will be logged.Options:• Allowable range: +20 to +35 dBm• Default: +20 dBmNOTE: The system will not log a PA Power Low Alarm if there isnot sufficient input RSSI to drive the amplifier with the current gain.D: Reverse PA Power High Alarm PointEntry: From the Power Amplifiers Menu, type D, press Enter.Purpose: To define the maximum acceptable RF power output. If thelevel exceeds that figure, an alarm will be logged.Options:• Allowable range: +20 to +35 dBm• Default: +33 dBm

A. Software ControlPage A-10 MR Booster Manual: Appendices (MN001808-1, 7/99)E: Reverse PA Power Maximum AGC ThresholdEntry: From the Power Amplifiers Menu, type E, press Enter.Purpose: To set the RF power level at which the booster will begin tocut back gain. If this level is exceeded, the gain is reduced by 4 dBevery Gain Control Period until the RF power level is below the AGCthreshold or until the PA is shut down.Options:• Allowable range: +20 to +35 dBm• Default: +31 dBmF: Reverse PA Power Low Alarm PointEntry: From the Power Amplifiers Menu, type F, press Enter.Purpose: To define the minimum acceptable RF power output. If thelevel exceeds that figure, an alarm will be logged.Options:• Allowable range: +20 to +35 dBm• Default: DisabledNOTE: The system will not log a PA Power Low Alarm if there isnot sufficient input RSSI to drive the amplifier with the current gain.A.4.3 Alarms MenuEntry: From the Main Menu, at the > prompt, type D, press Enter.Menu:Purpose: Gives access to parameters that generate alarm conditions. Eachcondition may be designated “log only” or “critical.”Alarms Menu DefaultAPA Temp – High Alarm Point ................................ .............. 90° CCDC Power – Low Alarm Point ................................ .............. 10.0 VDAC Power Lost – Alarm Point ................................ .............. 10 (x 0.1 Min)EPS Temp Alarm................................ ................................ ...ENABLEDFDoor Open Alarm................................ ................................ ENABLEDGExternal Analog Inputs MenuHExternal Digital Inputs MenuI External Digital Outputs MenuJCritical Alarms Menu

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-11A: PA Temp – High Alarm PointEntry: From the Alarms Menu, type A, press Enter.Purpose: To define the maximum acceptable PA temperature.Temperatures above this limit will cause an alarm to be logged.Options:• Allowable range: 0-200º C• Default: 90º CC: DC Power – Low Alarm PointEntry: From the Alarms Menu, type C, press Enter.Purpose: To specify the +12 V supply voltage alarm threshold. Analarm is generated if the +12 V reading is equal to or lower that thisvoltage. This alarm indicates a problem with the power supply,harness wiring, or connectors.Options:• Allowable range: 0 (Disabled), 0.1 to 14.9 V• Default: 10.0 VD: AC Power Lost Alarm PointEntry: From the Alarms Menu, type D, press Enter.Purpose: To specify the duration of an AC power outage that willcause an alarm to log.Options:• Allowable range: 0 (Disabled), 1 to 250 X 0.1 Minutes• Default: 10 X 0.1 MinutesE: PS Temp AlarmEntry: From the Alarms Menu, type E, press Enter.Purpose: To enable or disable the alarm for the power supply overtemperature.Options:• Allowable range: Enabled or Disabled• Default: Enabled

A. Software ControlPage A-12 MR Booster Manual: Appendices (MN001808-1, 7/99)F: Door Open AlarmEntry: From the Alarms Menu, type F, press Enter.Purpose: To enable or disable the door open alarm.Options:• Allowable range: Enabled or Disabled• Default: EnabledNOTE: The Door Open Alarm will not log for 10 minutes after anALA=0 or RES command. This will allow the operator time todisconnect the local terminal and close the door.G: External Analog Inputs MenuEntry: From the Alarms Menu, type G, press Enter.Menu:Purpose: Allows setting of the alarm conditions for the externalanalog inputs. Up to three analog inputs may be connected (seeSection 3.3.4.Options:• Allowable entries:(0) DISABLED(1) ABOVE(2) BELOW• The input alarm points are individually controllable; if above orbelow is selected, a threshold between 0.1 and 5.0 V may bespecified.• Default: (0) DISABLEDExternal Analog Inputs Menu Default Values1Ext. Analog Input 1 Alarm State .......... DISABLED ;Input Currently 0.0 Volts2Ext. Analog Input 2 Alarm State .......... DISABLED ;Input Currently 0.0 Volts3Ext. Analog Input 3 Alarm State..........DISABLED ;Input Currently 0.0 Volts

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-13H: External Digital Inputs MenuEntry: From the Alarms Menu, type H, press Enter.Menu:Purpose: Allows setting of the alarm conditions for the externaldigital inputs. Up to three digital inputs may be connected (seeSection 3.3.4).Options:• Allowable entries:(0) DISABLED(1) HIGH(2) LOW• Default: (0) DISABLEDI: External Digital Outputs MenuEntry: From the Alarms Menu, type I, press Enter.Menu:Purpose: Allows setting of the state for the external digital outputs.Up to two digital outputs may be connected. The outputs may be usedto control external equipment (see Section 3.3.4). Also, options (1)and (2) support using external monitoring equipment to be connectedto the MR Booster.Options:• Allowable entries:(0) LOW(1) LOW IF CRITICAL ALARM EXISTS(2) HIGH IF CRITICAL ALARM EXISTS(3) HIGH• Default: (0) LOWExternal Digital Inputs Menu Default Values1Ext. Digital Input 1 Alarm State ........... DISABLED ;Input Currently HIGH2Ext. Digital Input 2 Alarm State ........... DISABLED ;Input Currently HIGH3Ext. Digital Input 3 Alarm State ........... DISABLED ;Input Currently HIGHExternal Digital Inputs Menu Default Values1Ext. Digital Output 1 State ................................ ........... LOW2Ext. Digital Output 2 State ................................ ........... LOW

A. Software ControlPage A-14 MR Booster Manual: Appendices (MN001808-1, 7/99)J: Critical Alarms MenuEntry: From the Alarms Menu, at the > prompt, type J, press Enter.Menu:Purpose: Displays a list of logged alarms. Any alarm may be set to“log only” or “critical.”Options:• Allowable entries:(1) CRITICAL(2) LOG ONLY• Default: (1) CRITICALA.5 System Monitoring CommandsThe MR Booster software monitors the status and performance of the system throughsimple commands. Each command is entered at the command prompt (>). Thefollowing commands are described in this section:• SSS (Show System Status) Command• ALA (Alarm Report) Command• PWR (PA Power Display) Command• REV (Show Software Revision) CommandCritical Alarms Menu DefaultJPA OUT-OF-SERVICE ALARM ................................ ........CRITICALKPA TEMP – HIGH ALARM ................................ ................ CRITICALL PA POWER – HIGH ALARM ................................ ............. CRITICALMPA POWER – LOW ALARM................................ .............. CRITICALNROM ALARM................................ ................................ ....CRITICALPNOVRAM ALARM................................ ............................ CRITICALQPOWER SUPPLY VOLTAGE – LOW ALARM................... CRITICALR AC POWER LOST ALARM................................ ................ CRITICALSPA TEMP ALARM ................................ ............................. CRITICALTDOOR OPEN ALARM................................ ........................ CRITICALUEXTERNAL ANALOG INPUT ALARM............................. CRITICALVEXTERNAL DIGITAL INPUT - ALARMS ......................... CRITICAL

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-15A.5.1 SSS (Show System Status) CommandEntry: At the > prompt, enter SSS press Enter.Purpose: Lists a one-page report of selected MR Booster operatingparameters, along with the conditions of inputs that are monitored, thenreturns to the command entry level. Figure X-X shows a sample SSS report.Items listed in the report are described on the following pages.Reported Items:• BOARD MODE: Operating mode of each board:ü Enabled: Indicates the board is actively repeating signals in bothforward and reverse directions.ü Standby: Indicates the board is OK, but not currently Active due to aproblem with another element in the system. Normally, a board that isStandby will automatically go back to Active if the problem on theboard or PA is cleared up.ü Disabled: Indicates either that the board status is set to None orDisabled (i.e., the board has been disabled by the user) or that theboard is Disabled due to an alarm condition. If the latter case is true,the ALA command will show an OUT OF SERVICE alarm thatcaused the out-of-service condition.>sss To come . . .Figure X-X. Sample SSS Report• BOARD TYPE: Board type as read from the actual hardware. Theinstalled boards have a built-in personality identifier that is read andreported. Board types are indicated as follows:ü Wideband boards:-Cellular: Indicates the band and service the board is designed tosupport.-1.25 MHz: Indicates the bandwidth of the filters on the board.ü None: No board is detected, or there is a hardware communicationproblem between the RF board and the controller. (The rest of thedisplay for that column will be blank.)

A. Software ControlPage A-16 MR Booster Manual: Appendices (MN001808-1, 7/99)• PA MODE: Active, Standby, or Disabled. A PA cannot be disabled bythe user. If a PA MODE is Disabled, it is always due to an alarm on thatPA.• PA POWER (DBM): Power output indication (nominal level at theantenna connection).• PA TEMP (DEG C): Temperature reading of the PA.• DC VOLTAGE: The current voltage reading of the (nominal) 13.8 Voltsupply. Range: 0-20 Volts.• AC SUPPLY: OK or LOST FOR X MINUTES. Indicates if ac ispresent, or, if lost, for how long.• POWER SUPPLY TEMP: ???• CABINET DOOR: OPEN or CLOSED.• EXT. ANALOG VOLTAGES: Voltages at the three general-purposeanalog inputs. Range: 0-5 Volts.• EXT. DIGITAL I/O: Shows the current state of the three general-purpose digital inputs and two general-purpose digital outputs. Range:HIGH or LOW.A.5.2 ALA (Alarm Report) CommandEntry: At the > prompt, enter ALA press Enter.Purpose: Displays a report of the number of alarm conditions that haveoccurred since the last system reset, then returns to the > prompt. Figure X-Xshows a sample ALA report. Reported alarms are described on the followingpages.>alato come . . .Figure X-X. Sample ALA ReportReported Alarms Description:• Counts stop at 63.• All counts are zeroed after a power reset or a RES command. Counts maybe zeroed by entering ALA=0.

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-17• Alarm log rate: Some alarms are checked as often as five times a second.To prevent a single alarm condition from running up the count, a givenalarm is logged, at most, one time in 10 minutes. The alarm counts maybe interpreted as the number of 10-minute intervals in which the alarmoccurred.There are two exceptions to this: the board and PA Out of Service alarms,which are really not logs at all, but reflect the current condition of theboard or PA.• Automatic Restore to Service: If an alarm condition causes a board orPA to be taken out of service, the system will continue to process callsusing available boards and PAs until no calls are up. At that time, thecontroller will attempt to restore out-of-service boards to service byresetting the boards.After the boards reset???, the controller power-on diagnostics are run onall boards and PAs. These diagnostics check for all alarms that may causea board or PA to be out of service, and if an alarm of that type occurs, theboard or PA remains out of service. If a board or PA fails to come back inservice, the controller repeatedly tries to restore boards or PAs to service(during times when no calls are up) up to 10 times, the last seven ofwhich are spaced at least 1 hour apart. Note that regardless of whether theboard or PA comes back in service, the original alarm that caused theproblem is still maintained in the log. Except for the Out of Servicealarms, the only way alarms can be zeroed is with ALA=0 or a systemreset.PA Alarms Reported:• PA OUT OF SERVICE ALARM: PA currently out of service. If themeasured PA power exceeds the Maximum Power AGC Threshold level,the controller will reduce the gain in 4 dB steps, as long as the conditionpersists, down to the minimum setting. If the output power still exceedsthe Maximum Power AGC Threshold, the PA will be taken out of service.(If the PA mode displayed by the SSS command is DISABLED, the PAhas been taken out of service.)

A. Software ControlPage A-18 MR Booster Manual: Appendices (MN001808-1, 7/99)When a PA goes out of service, the MR Booster will attempt to bring itback into service by re-initializing the RF hardware, including theboards??? and the PAs. Because an out-of-service PA is usually due toan oscillation condition, the system does not attempt immediately to bringit back. Rather, the system will attempt a restore-to-service once eachhour, as long as the PA continues to go back out of service. After sevensuch attempts, the system will discontinue restore-to-service attempts tothat PA, leaving it out of service. However, if another board or PA goesout of service, it will trigger its own set of restarts, any of which mightbring back any or all out-of-service boards or PAs.• PA TEMP HIGH ALARM: PA temperature above the Maximum PATemperature Alarm Point parameter.• PA POWER HIGH ALARM: PA output power above the MaximumPower Alarm Point parameter. Following is a list of possible causes:ü Improper setting of the PA Power High Alarm Point with respect tothe PA Power AGC Thresholdü Failure of the AGC algorithm to keep the power in checkü Too much gainü Oscillation• PA POWER LOW ALARM: PA output power below the MinimumPower Alarm Point parameter at a time when RSSI and gain are sufficientto cause that much power. Following is a list of possible causes:ü PA failureü Board failure (either low gain or inaccurate RSSI reporting)ü Problem with one of the RF cables that couple the boards and PAsSystem Alarm Conditions Reported:• ROM ALARM: Problem in Read Only Memory. (Checked at power-upby computing a ROM checksum and comparing it with a storedchecksum. Note: The CHK command will recompute the ROM checksumand display the stored checksum but will not check for a match.)• NOVRAMALARM: Problem in Nonvolatile Memory. (Checked atpower-up by looking for several "signature bytes" that indicate if datahave ever been written and if gross memory loss has occurred. If thesignature cannot be found, the system tries to write the defaults [and thesignature] to the NOVRAM.ü Alarm readings:0 = No problems.

A. Software ControlMR Booster Manual: Appendices (MN001808-1, 7/99)Page A-191 = Signature not found, but system was able to write itsuccessfully. (All operating parameters will revert to theirdefault values.) Software upgrades usually result in thisreading, since different versions employ different signatures.Repeated occurrences indicate an intermittent NOVRAM.2 = Signature not found; system could not write the signature.Indicates faulty NOVRAM circuitry.• DC VOLTAGE LOW ALARM: The +12 volt supply went below theassociated Low Alarm Point. The voltages are monitored at the controllerboard. A monitored supply voltage point must be in the alarm conditionfor at least 1 second before an alarm is logged. Shorter duration dipsbelow the alarm points are ignored.• AC SUPPLY LOST ALARM: This alarm is logged if the AC power islost for a period of time longer than the AC Power Lost - Alarm Pointduration.• POWER SUPPLY TEMP ALARM: This alarm count indicates thenumber of 10-minute intervals during which the power supplytemperature exceeded its internally set Max Operating Point.• CABINET DOOR OPEN ALARM: This alarm count indicates thenumber of 10-minute intervals during which the cabinet door wasdetected to be open for at least 1 second.NOTE: Alarm will not be logged for 10 minutes after an ALA=0 or REScommand. This allows the operator time to disconnect the local terminaland close the door.• EXT. ANALOG ALARMS: Indicates the number of times the voltageon the general-purpose analog input has gone above or below thethreshold specified in the Ext. Analog Input Alarm State parameter. Anexternal analog input alarm condition must persist for at least 1 secondbefore an alarm is logged. Shorter durations are ignored.• EXT. DIGITAL ALARMS: Indicates the number of times the input hasbeen different from the Ext. Digital Input Alarm State parameter ifenabled. An external digital input alarm condition must persist for atleast 1 second before an alarm is logged. Shorter durations are ignored.A.5.3 PWR (PA Power Display) CommandEntry: At the > prompt, enter PWR, press Enter, or PWR X, press Enterwhere X is 1-3 (2 or 4 depending on # of PAs??? How are they numbered inthe cabinet???) indicating the display option desired.

A. Software ControlPage A-20 MR Booster Manual: Appendices (MN001808-1, 7/99)Purpose: The PWR command allows the user to continuously monitor thePA power. Also, PWR allows continuous monitoring of other PA parametersby choosing options 2-3. Each of the PWR options causes a selected SSSdisplay line to be displayed on a continuously updated basis. The informationhas the same meaning as with SSS. Figure X.X shows a sample list of powerreadings.>pwrOPTIONS: 1-PA PWR; 2-PA TEMP; 3-PA MODE... ENTER CHOICE (1-3): 1PA FWD REVPA POWER (DBM) +25 +0PA TEMP (DEG C) +32 +33PA MODE ENABLED ENABLED<ESCAPE>Figure X.X. Sample List of Power ReadingsA.5.4 REV (Show Software Revisions) CommandEnter: From the > prompt, enter REV press Enter.Purpose: Shows the controller board software revision, date code, and serialnumber.

MR Booster Manual: Parts & Accessories ( MN001808-1, 7/99) Parts-1Parts & AccessoriesOrder InformationA. IntroductionThis part of the manual provides information about MR Booster parts, including:• Model numbers: MR Booster model numbers.• Suggested spares: Suggestions for replacement parts to be kept on hand,according to system size.• Replacing parts and accessories: Procedures for exchanging units underwarranty (see page iv for product warranty) as well as those not under warranty,and for purchasing spare parts.B. Model NumbersThe figure below explains the meaning of each character in the MR Booster modelnumber.Example: MRBDUP19LMRB DUP 19 LMR Booster Options:BASE: Basic cabinetDUP: Donor duplexerRDUP: Downlink duplexerAMP4x: High powerAMP2x: Medium powerDIV: With diversityPREAMP: Downlink amplifierVSWR: Antenna VSWRFrequency BandsLMR800: 07AMPS800: 08PCS ADB: 19PCS EFC: 19Frequency sub-bands(duplexer and diversityoptions only):L: PCS ADB blocksH: PCS extended EFC blocksX: Full-band coverageTable Parts-1. Model numbers

Parts & Accessories Order InformationParts-2MR Booster Manual: Parts & Accessories (MN001808-1, 7/99)C. Suggested SparesThe recommended spares per number of fielded MR Boosters is shown below.Follow instructions in Section C to purchase spare componentsPart Recommendation Part NumberPower supply 1 per 5 systems G59A0021-1Power amplifier 2 per 5 high-power systems G75A0049-1LNA 1 per 10 systems A001762.G2Logic controller board 1 per 10 systems A001769-1Combiner/splitter 1 per 10 systems 2-way: A001748.G34-way: A001748.G4Fans 1 per 5 high-power systems G45AF005-1Table Parts-2. Spare parts list

Parts & Accessories Order InformationMR Booster Manual: Parts & Accessories ( MN001808-1, 7/99)Parts-3D. Replacing Parts and AccessoriesTo order spare or replacement parts, refer to the following instructions:I. Exchange Procedures: Units Under Warranty1Failed MR Booster parts that are still under the manufacturer's warranty can beexchanged by following these procedures:1. Obtain the model or part number of the MR Booster unit, as listed earlierin this section.2. Call the MIKOM Hotline at 1 (800) 800-3224. Be prepared to providethe part number and any other pertinent information.3. Repair parts/assemblies will be shipped. MIKOM will ship replacementparts or assemblies with a Return Materials Authorization (RMA) form.This form must be used to return failed parts or assemblies to MIKOM.All parts are shipped next day air, free of charge, unless otherwiseinstructed by the customer.4. Return failed parts/assemblies to MIKOM according to instructions onthe RMA form. +The customer account will be billed for the full value of thereplacement part or assembly at the time of shipment. The accountwill be credited (subject to inspection of the returned item) whenthe failed parts/assemblies are received by MIKOM. For parts thatare ordered incorrectly and returned, a 10% restocking fee will beassessed. 1 A copy of the Warranty is provided in the front of this manual, page iv

Parts & Accessories Order InformationParts-4MR Booster Manual: Parts & Accessories (MN001808-1, 7/99)II. Exchange Procedures: Units No Longer Under WarrantySelected units that are no longer under warranty can be replaced through theMIKOM exchange program. This program permits customers to exchange afailed part or assembly for a working part or assembly, for a charge. ContactMIKOM, Systems Engineering Department, to determine which assemblies can beexchanged under this program.To take advantage of this program, follow the procedures listed above under I.Exchange Procedures: Units Under Warranty.+The customer account will be billed for the full value of thereplacement part or assembly at the time of shipment. The accountwill be issued a core value credit (subject to inspection of the returneditem) when the failed part/assembly is received by MIKOM. Thecustomer account will be billed a nominal exchange charge. All partsare shipped at the customer's expense. For parts that are orderedincorrectly and returned, a 10% restocking fee will be assessed.III. Purchasing Spare Parts/AssembliesSpare parts/assemblies for the MR Booster can be purchased by contactingMIKOM at (440) 349-8677 or (800) 321-9977 for prices and delivery. Refer tothe list in Section C to identify specific parts.+Spare or replacement parts orders can be processed more efficientlywhen items are identified by their part number. The SystemsEngineering Department of MIKOM can assist customers withlocating and verifying the correct part number. Customers should beprepared to provide the unit model and serial number, which areprinted on labels affixed to each unit.IV. Returning Products for RepairProducts under warranty will be repaired and returned at no charge; no purchaseorder is required.For non-warranty repairs, a purchase order must be submitted in advance, andshipping charges are paid by the customer. Repair estimates will be given ifrequested. Products still under warranty but damaged by the customer are treatedas non-warranty repairs.

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