Powerwave Technologies 5JS0120 Nexus Dual Band Repeater User Manual Nexus FT RMR indd

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COVERAGE SOLUTIONSINSTALLATION AND SERVICE MANUAL044-05326 REV. B JULY 2010 NEXUS FT RACK MOUNT RADIO

044-05326 Rev B iiiRevision Record Revision Letter Date of Change Reason for ChangeRev A September 2008 Initial releaseRev B July 2010 Updated manual to show new FT RMR product

Nexus FT RM RMRiv 044-05326 Rev BThis page intentionally left blank

Nexus FT RM RMR Table of Contents044-05326 Rev B vTABLE OF CONTENTSWarning, Cautions, and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiSafety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiHuman Exposure to RF Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiRepeater Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiInstallation and Maintenance of Antenna Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiRadiation Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viiiElectrostatic Discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii Chapter 1 - Product Description Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Cabinet Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Rack Mount Radio module (RMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Chapter 2 - Indicators Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Chapter 3 - Installation Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Site Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1RMR Cabinet Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Rack Mounting the RMR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Downlink and Uplink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Service and WLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Main Power and Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Initial Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Chapter 4 - Maintenance Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Clearing Alarm Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Field Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5Fan Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5NetWay Manager (NWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Return For Service Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Obtaining an RMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Repackaging for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Chapter 5 - Specifications Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Table of Contents Nexus FT RM RMRvi 044-05326 Rev BList of Figures1-1 Powerwave Nexus FT RM rack- fully equipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21-2 Nexus FT Rack Mount Radio (RMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22-1 External Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13-1 Downlink and Uplink Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23-2 RMR Service and WLI Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33-3 RMR Main Power and Grounding Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44-1 Fan Assembly Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54-2 Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5List of Tables3-1 Downlink and Uplink Connection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23-2 RMR Service and WLI Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33-3 RMR Main Power and Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43-4 Initial Status Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54-1 Recommended Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14-2 Alarm Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14-3 Fan Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55-1 RMR Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

044-05326 Rev B viiPrefaceWarning, Cautions, and NotesWarnings, Cautions, and Notes are found throughout this manual where applicable. The associated icons in warnings and cautions are used to quickly identify a potential condition that could result in the consequences described below if precautions are not taken. Notes clarify and provide additional information to assist the user.WARNING: The warning symbol means danger. You are in a situation that could cause bodily injury or death. Before you work on any equipment, be aware of the hazards involved with elec-trical and RF circuitry and be familiar with standard practices for preventing accidents.CAUTION: The caution symbol means the potential exists for equipment damage or loss of data.NOTE: Notes contain helpful suggestions or references to material not covered in the document.SafetyAny personnel involved in installation, operation, or service of units included in a Powerwave repeater system must understand and follow the points below:❑Powerwave Nexus FT Rack Mount Radios (RMR) are designed to receive and amplify signals from one or more base stations and retransmit the signals to one or more mobile stations. They also act the other way round, that is to receive signals from one or more mobile stations, then amplify and retransmit the signals to the base stations. Powerwave Nexus FT RMR systems must be used exclusively for this purpose and nothing else.❑Units supplied from the mains must be connected to grounded outlets and in conformity with the local prescriptions.❑Power supply units supplied from the mains contain dangerous voltage that can cause electric shock. Disconnect the mains prior to any work in such a unit. Local regulations are to be followed when servicing such units. Only authorized service personnel are allowed to service units while the mains are connected.❑All RF transmitting units, including Nexus FT RMRs, will generate radio signals and thereby give rise to electromagnetic fields that may be hazardous to the health of any person who is extensively exposed close to an antenna.Human Exposure to RF RadiationSafe distances must be kept when working around antennas. The following paragraphs describe the cautions to be aware of during the installation and maintenance of antenna systems and how to calculate safety distances needed for RF radiation at different antenna power and frequencies.Repeater AntennasTo be able to receive and transmit signals, a repeater is connected to a donor antenna directed towards the base station and a service antenna directed towards the coverage area. A fiber optic cable from the base station might, however, be substituted for the donor antenna.Installation and Maintenance of Antenna SystemsInstallation and maintenance of all antenna systems must be performed with respect to the radiation exposure limits for public areas. The antenna radiation level is affected by the output power, antenna gain, and transmission devices such as cables, connectors, splitters and feeders. Also have in mind the system minimum coupling loss, typically between 25 dB and 35 dB, is determined by a standard with the purpose to protect base stations from noise and other performance dropping effects.

Electrostatic Discharge (ESD) Nexus FT RM RMRviii 044-05326 Rev BRadiation ExposureThe World Health Organization (WHO) and International Commission on Non-Ionising Radiation Protection (ICNIRP) have determined recommendations for radiation exposure. ICNIRP recommends not to exceed the following radiation power for public exposure:Frequency Radiation power800/900 MHz 4.5W/m²1800/1900 MHz 9.0W/m²2100 MHz 10.0W/m²For antennas larger than 20cm the maximum radiation power can be calculated by using the following formula:Electrostatic Discharge (ESD)ESD can severly damage essential parts of the equipment if not handled carefully. Parts on Printed Circuit Board Assemblies (PCBA) as well as other parts in the equipment are sensitive to ESD. Never touch the PCBA or uninsulated conductor surfaces unless absolutely necessary.If you must handle the PCBAs or uninsulated conductor surfaces, use ESD protective equipment or first touch the chassis with your hand. Never let your clothes touch PCBAs or uninsulated conductor surfaces and always store PCBAs in ESD-safe bags.S= P/(4πr2)S = Radiation power in W/m²P = Output power in Wr = Distance between antenna and human in meters

044-05326 Rev B 1-1Chapter 1Product DescriptionIntroductionThis manual contains information and procedures for installation, operation, and maintenance of the Rack Mount Radio module as part of the Nexus FT Rack Mount Repeater. In this manual, the Nexus FT Rack Mount Radio is referred to as the RMR. The manual is organized into chapters as follows:Scope of ManualThis manual is intended for use by service technicians familiar with similar types of equipment. It contains required service information for the RMR and is current as of the printing date. Changes which occur after the printing date may be incorporated by a complete manual revision or alternatively as additions.OverviewThe RMR is a repeater designed to be part of a Distributed Antenna System (DAS). The components are mounted on a 19 in. rack and are intended for use in an indoor, temperature controlled environment.As part of a DAS, the RMR extends coverage into uncovered areas in wireless mobile systems such as base station fringe areas, tunnels, convention centers, airports, and buildings. It receives, amplifies, and transmits signals to/from a Base Transceiver Station (BTS) and to/from Mobile Stations (MS).The RMR unit is a dual wide band, bi-directional, RF amplifier with two separate donor ports and a common (duplexed) service port per band. It connects to aFiber Base Distribution Unit (FBU) that combines, splits and converts RF signals to an optical signal in the Uplink (UL) direction. In the Downlink (DL) direction, the FBU converts optical signals to RF signals and splits the signal to RF outputs. Two separate full-duplex fibers handle signal transport between the BTS Master Unit and the FBU. See the Fiber Base Unit Installation and Service Manual (part number 044-05348) for more details. The DL signal and the UL signal combine onto one optical fiber through a Wavelength Division Multiplexer (WDM). Wideband 4-way combiners handle RF splitting and combining. The UL output signal is connected to the FBU via RF coax cable, converted to light, and sent via fiber toward the BTS.A Wireless Portal module distributes the DL/UL signals to/from the DAS. The RMR is microprocessor controlled with alarm and operational status LEDs visible on the front. Cooling is provided through forced air fans. Operational parameters are set using a PC running Powerwave OM-Online software which communicates with the RMRs through the FBU or through a system solution. Remote operation can be accomplished via Public Switched Telephone Network (PSTN) or a GSM net. The Operation and Maintenance System (OMS) provides for Network Operations Center (NOC) configuration and alarm monitoring.❑Chapter 1- Product Description❑Chapter 2- Indicators❑Chapter 3- Installation❑Chapter 4- Maintenance❑Chapter 5- Specifications

Rack Mount Radio module (RMR) Nexus FT RMR1-2 044-05326 Rev BCabinet DesignThe Nexus FT RMR modules are intended to be mounted in a 482 mm (19 in) cabinet at least 600 mm (23 in) deep, similar to the one shown Figure 1-1.IFigure 1-1 Powerwave Nexus FT RM rack- fully equippedRack Mount Radio module (RMR) RMRs can handle multiple carriers over a wide band. The cabinet can be equipped with up to four RMRs.Figure 1-2 Nexus FT Rack Mount Radio (RMR) Typical RMR position

044-05326 Rev B 2-1Chapter 2IndicatorsIntroductionThis chapter contains descriptions of the controls, indicators, and connectors for the Nexus FT RMR. IndicatorsFigure 2-1 External IndicatorsThe LEDs, shown in Figure 2-1, provide easy identification of a fault in the system. The amber operation LED lights up approximately 15 seconds after the main power is switched on. When the LED is steady, the RMR is ready for operation. The red alarm LED indicates a system error alarm when flashing and a critical alarm when steady.Red Amber

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044-05326 Rev B 3-1Chapter 3InstallationIntroductionThis chapter contains unpacking, inspection, and installation instructions for installing and powering up the Nexus FT RMR.Site SurveyPowerwave recommends that a site survey be performed prior to equipment ordering or installation. Performing a detailed site survey reduces or eliminates installation and turn-up delays. Pay particular attention to power plant capacity, cooling needs, floor space, and RF/DC cabling/breaker requirements. Cabinet dimensions and weights are listed in Chapter 5.Unpacking and InspectionThis equipment has been operated, tested, and calibrated at the factory. Carefully open the container to remove the equipment. Retain all packing material so it can be reassembled in the event the unit must be returned to the factory. Perform the following steps:❑ Visually inspect equipment for damage that may have occurred during shipment. If possible, in the presence of the delivery person, if possible.❑ Check for evidence of water damage, bent or warped chassis, loose screws or nuts, or extraneous packing material in connectors.If the equipment is damaged, file a claim with the carrier once the extent of the damage is assessed.If the equipment must be returned to the factory, please contact the factory for a Return Material Authorization (RMA). See Chapter 4.RMR Cabinet LocationThe RMR is designed for use in an indoor, temperature controlled environment mounted in a 19 inch cabinet. Ensure the rear of the unit is supported properly.The RMR should be placed in an area that is free of obstructions, easily accessible, and allows for proper air-flow and ventilation.Rack Mounting the RMR1. Set the RMR in the required position.2. Align the mounting holes with the holes on the rack.3. Insert the four mounting screws and tighten until secure.4. Ensure the rear of the unit is supported properly.

Connections Nexus FT RMR3-2 044-05326 Rev BConnectionsDownlink and UplinkRF and fiber cable connections should be verified both internally and externally before powering up the equipment. Verify these connections with the as-built drawings and documents for your specific system configuration. Table 3-1 and Figure 3-1 show the steps to connect the RMR module to the Nexus Fiber Base Unit (FBU) at the head end.Table 3-1 Connection ProcedureFigure 3-1 RMR to FBU and Service 1/2 ConnectionsStep Action1 Connect a fiber cable between the RMR fiber terminal and a head end device, such as the FBU. 2 Connect an RF cable between the customer’s system and the Service 1 and Service 2 ports on the RMR.Fiber cableService 2Service 1

Nexus FT RMR Connections044-05326 Rev B 3-3Main Power and GroundingLocal regulations need to be followed for the main power connection. Nexus FT RMRs are approved in accordance with EN and UL/cUL regulations. This is, however, only valid if a classified power cord is used. For the Nexus FT RMR to meet these regulations you must select one of the following classified and approved cord types:❑ EN – H 05 W5 - F HMR❑ UL – AWM Style 2587❑ CSA– AWM 1 A/B 11 A/BWARNING: For Nexus FT RMRs supplied from the main power source, the main outlet must be grounded.Table 3-2 RMR Main Power and GroundingFigure 3-2 RMR Main Power and Grounding ConnectionsStep Action1 Connect a power cable between the RMR and an appropriate power supply. 2 Connect a ground cable between the ground terminal on the RMR and an appropriate ground at the installation site.Power cableGround Cable

Commissioning Nexus FT RMR3-4 044-05326 Rev BCommissioningBefore proceeding, carefully read the Safety section and check all connections made during the installation. Ensure cables are properly tightened and not damaged.The RMR can be configured locally with OM-Online by connecting a standard serial cable from the COM port on the PC to the P31 PC port (RS-232) located on the front of the RMR. Details on using OM-Online are described in the OM-Online User Manual - Connecting a PC for Local AccessInitial StartupTo complete the initial start-up of the Nexus FT RMR, follow the steps listed in Table 3-4.Table 3-3 Initial Statup ProcedureNOTE: When optimizing RMRs, offset the UL gain 20 dB less than the DL gain as a starting point.Always monitor the UL pass bands for noise levels and/or IMDs when optimizing and commission-ing.Step Action1 Turn main power on.2 Check the LEDs on the RMR. Refer to Figure 2-1 in Chapter 2 for correct power up indications.

044-05326 Rev B 4-1Chapter 4MaintenanceIntroductionThis chapter contains periodic maintenance and performance test procedures for the Nexus FT RMR.Periodic MaintenancePeriodic maintenance requirements are listed in Table 4-1, as well as the intervals at which the tasks should be performed.TroubleshootingThe sections that follow contain a list of problems that could occur and a few suggested actions that might correct each problem. If the suggested corrective action does not eliminate the problem, please contact your Powerwave field representative or help line for further instruction.Clearing Alarm FaultsTable 4-2 lists the alarms that can be generated in the Nexus FT RMR. Critical, Error, and Warning alarms are sent automatically from a Nexus FT RMR to OM-Online, stored and then viewed in the Alarm window.Table 4-1 Recommended Periodic MaintenanceTask Interval ActionInspection of cables and connectors12 months Inspect power, RF, and Fiber cables for signs of damage or wear (frayed insulation, cracks, punctures, etc.) Check connections to be sure they are tight.Clean cooling fans 12 months Clean any dirt or debris that may potentially block air flow.Optional Perform cable sweeps.Clean equipment Clean as required depending on operating environment.Table 4-2 Alarm TroubleshootingID Alarm Text Alarm Unit Alarm Description1 Power PSM Critical PSM does not work properly. A sum signal from the PSM indicates that at least one voltage output has dropped. If no mains breakdown relay is used, then the alarm will also be sent at mains breakdownCeasing PSM. Ceasing is sent if the PSM works at start-up, and there is a corresponding critical PSM alarm logged in the Events log. The RMR will restart when the power is back and this alarm will be sentCeasing The cause of the alarm has ceased

Troubleshooting Nexus FT RMR4-2 044-05326 Rev B2 RMR restart CU None Power on start, or user ordered reboot. Logged to indicate a normal power up, or a restart ordered by the operatorWarning Software error restart, 1st – 7th time. Restart 1st to 7th time during a 14 day period. The counter is reset every 14th day, counted from power upError Software error restart 8th – 10th time. Restart 8th to 10th time during the 14 day period. At the 11th time, the SW bank will be blocked and not used anymore until a user ordered reset is performed, or power is switched off/on3Mains breakdownExternal Critical The mains power is gone. Used with an external relay indicating mains breakdown. The external relay should be connected to External Alarm 1 and the RMR configured to indicate this alarm. If no relay is used, a mains breakdown will be reported as a PSM faultCeasing The mains power is back. Sent if there is a corresponding critical mains breakdown alarm logged in the Events Log. The RMR will restart when the power is back4 Alarm reset CU None Alarm reset by the user. All alarms are reset. The cause of the alarm will be re-evaluated and reported, if still active5 Local bus errorWBA #, MCPA#Error Error when communicating on the bus. The CU has no contact with the WBA, or MCPA PCBA, which is taken out of service6 Main bkd w backupExternal Error Used to indicate that the mains is no longer available. RMR is powered by external battery backup unit. Suggested remedy: Check the mains powerCeasing The cause of the alarm has ceased7Err in AD-converterWarning The analog-to-digital converter on the CU PCBA does not give reliable values8 New unit detectedNone Compared to the last power on, the CU has recognized at least one additional hardware unit9 Inst. unit lost Error Compared to the last power on, the CU lacks at least one hardware unit10 EEPROM errorCU Error EEP read or write fail. Data cannot be written or read from the EEPROM on the CU PCBA. User parameters are stored in the EEPROM11 Log memory faultError Log memory fault. Indicates that the log memory on the CU PCBA is faulty. The RMR will not work. Not available in all CU software versions12 High temp CU Warning The CU PCBA temperature is higher than 90°CCeasing The CU PCBA temperature has fallen below 90°C13 REFO error Error Significant REFO drift or error detected by CU14 Ext REFO errorWarning Suggested remedy: Check the reference source and the cablesTable 4-2 Alarm Troubleshooting (Continued)ID Alarm Text Alarm Unit Alarm Description

Nexus FT RMR Troubleshooting044-05326 Rev B 4-315 CU battery faultCU Warning CU RAM battery fault. The battery for the RAM on the CU PCBA has a voltage outside the normal 2.7 to 3.5 Volt. An alarm may be initiated at start-up if the RMR has been stored out of power for a long time. Suggested remedy: Ensure jumper P3 on the CU PCBA is mounted to charge the batteryCeasing The cause of the alarm has ceased16 SW load error CU Error Software load error. An error has occurred during a software load process. The flash memory does not contain a proper software. Suggested remedy: Check the CU software using the OM-Online SW Manager. Do NOT restart the RMR17 Log cleared CU None Log memory has been cleared. The check sum in the Events Log memory is faulty. The log is cleared. Can be caused by a bad RAM battery backup or low voltage to the RAM18 RTC restarted CU None The time is changed by the operator (logged to keep track of changes made to the RTC)Warning Time reset to 1994-01-01. The RTC was unable to keep track of the time and did a reset. Suggested remedy: Ensure jumper P3 on the CU PCBA is mounted to charge the battery19 RTC error Error RTC does not operate. The CU has detected an error in the RTC operation which makes the time unreliable. Suggested remedy: Replace the CU PCBA20 Door open alarmExternal Config The door has been open 30 seconds without disabling the alarmCeasing The door has been closed 30 seconds, or the alarm is disabled21 External alarm 1External Config External alarm input EA1 active more than 1 secondCeasing External alarm input EA1 no longer active22 External alarm 2External Config External alarm input EA2 active more than 1 secondCeasing External alarm input EA2 no longer active23 Fan failure alarm 3External Config External alarm input EA3 active more than 1 secondCeasing External alarm input EA3 no longer active24 Fan failure alarm 4External Config External alarm input EA4 active more than 1 secondCeasing External alarm input EA4 no longer active34 Login failed None Invalid RMR password40 Battery fault RCU, FON chargerError The backup battery on the RCU or the FON PCBA does not work properly. Suggested remedy: Check cables or replace batteryCeasing The cause of the alarm has ceasedTable 4-2 Alarm Troubleshooting (Continued)ID Alarm Text Alarm Unit Alarm Description

Troubleshooting Nexus FT RMR4-4 044-05326 Rev B42 Antenna isolationWBA #, Channel #, UL/DLWarning Low antenna isolation. The antenna isolation is lower than the gain set. Gain is reduced by 10dB – 13dB below the oscillation point. Suggested remedy: Decrease gain or increase antenna isolationError Low antenna isolation at lowest gain. The gain has been reduced as much as possible but the oscillation still remains. The amplifier is turned off. Suggested remedy: Decrease gain or increase antenna isolationCeasing Normal operation again, that is no oscillation can be detected 13dB above the gain set48 Battery backup faultExternal Error If a battery backup unit alarm is connected to external alarm 2, then the operator can configure the RMR to display this alarm when the battery backup unit indicates alarmCeasing The cause of the alarm has ceased70 Bad table alarmCU Error Requested table contains incorrect information (SW error)71 Table not foundCU Error Requested table not found in the database (SW or calibration error)72 Table database errorCU Error Table database not found (calibration error)80 Antenna SWR alarmDonor antenna service antennaError Too low antenna return loss, caused either by cables, connectors, or antenna problems. Suggested remedy: Check antenna and cablesCeasing The cause of the alarm has ceased90 FON power alarmFON RF Error A DC voltage on a FON PCBA is out of range. Suggested remedy: Replace the FON PCBA.Ceasing The cause of the alarm has ceased245 Not In Allowed AreaCU None RMR is moved from the operating area and the RF HW is switched on or offTable 4-2 Alarm Troubleshooting (Continued)ID Alarm Text Alarm Unit Alarm Description

Nexus FT RMR Field Replaceable Units044-05326 Rev B 4-5Field Replaceable UnitsThe fan assembly is the only field replaceable unit. If any other components fail, please contact Powerwave for service. Fan Removal and ReplacementRefer to Table 4-3 and figures 4-1 and 4-2.Figure 4-1 Fan Assembly ScrewsFigure 4-2 Fan Assembly Table 4-3 Fan RemovalStep Action1 Disconnect power from the RMR.2 Remove four retaining screws from the fan assembly housing. See Figure 4-1.3 Remove the fan assembly and disconnect the plug. See Figure 4-2.4 Install the new fan assembly in reverse order.Remove these screws

NetWay Manager (NWM) Nexus FT RMR4-6 044-05326 Rev BNetWay Manager (NWM)NWM is a Powerwave software package for network management. NWM can be used to access repeaters for alarm reception, radio parameter configuration, software downloading, and scheduling activities.Return For Service ProceduresWhen returning products to Powerwave, the following procedures will ensure optimum response.Obtaining an RMAA Return Material Authorization (RMA) number must be obtained prior to returning equipment to the factory for service. Pease contact our Repair Department at +1-714-466-1000 to obtain this number, or FAX your request to +1-714-466-5800. Failure to obtain this RMA number may result in delays in receiving repair service.Repackaging for ShipmentTo ensure safe shipment of the unit, it is recommended that the original package designed for shipping the unit be reused. If it is not available, contact Powerwave’s Customer Service Department at 1-800-797-9283, +1-714-466-100 or by e-mail at support@pwav.com for packing material.

044-05326 Rev B 5-1Chapter 5SpecificationsIntroduction This chapter provides specifications for the Nexus FT RMR.Table 5-1: RMR SpecificationsElectricalFrequency band UL 824 to 849 MHz (Cellular)806 to 824 MHz (800 iDEN)896 to 902 MHz (900 iDEN)1850 to 1910 MHz (PCS)Frequency band DL 869 to 894 MHz (Cellular)851 to 869 MHz (800 iDEN)935 to 941 MHz (900 iDEN)1930 to 1990 MHz (PCS)Max absolute delay <300 nsGain adjustment range (in 1 dB steps) 30 dBGainUplinkDownlinkVariation*These are typical values and may vary due to cable length.35 to 60 dB typical - Excluding fiber link45 to 70 dB typical - Excluding fiber linkTypically ± 1.5 dB versus temperature± 2.0 dB versus DL frequency ± 0.5 dB versus DL output power ± 0.5 dB versus input voltage ± 2.0 dB versus UL frequencyInstantaneous bandwidth 25 MHz (Cellular)18 MHz (800 iDEN)5 MHz (900 iDEN)60 MHz (PCS)45 MHz (AWS)Uplink AGC limit 0 dBm at FON inputDownlink AGC limit 43 dBm at antenna portReturn Loss 11 dB (Service Port), 14 dB (Donor Port)Downlink, Spurious and Emissions level -13 dBm/1 MHz (FCC)Downlink power +46.3 dBm RMS (20 Watts) Noise figure excluding Uplink 4 dBPower supply voltage 85 - 265VAC Current Rating .6A RMSMaximum Current Draw (Dual Band) 6.5 A @115 VAC3 A @ 230 VAC

Introduction Nexus FT RMR5-2 044-05326 Rev BRecommend Fuse Size 10 - 20 A for AC VoltagePower consumption 420 W typical, 600 W maxImpedanceInputOutputNot Applicable 50 ΩMechanicalDimensions (W x H x D in inches) 403 x 265.9 x 551 mm (15.9 x 10.5x 21.7 in)Weight < 30 kg (66 lbs)Service Antenna port connector Female N-TypeDonor Port Connector SMAEnvironmentalOperating Temperature Range -0 °C to +55 °C (32°F to +131°F)Altitude -142 m to 4000 m (-466 ft. to 13100 ft.Casing class IP21Table 5-1: RMR Specifications (Continued)