RACK MOUNT REPEATER RM NEXUS FT INSTALLATION AND SERVICE MANUAL RACK MOUNT RADIO 044-05207 Rev A April 2008
© 2008 Powerwave Technologies Incorporated. All rights reserved. Powerwave Technologies and the Powerwave logo are registered trademarks. Powerwave Technologies Inc. reserves the right to make changes to documentation and equipment, including but not limited to component substitution and circuitry changes. Changes that impact this document may be subsequently incorporated in a later revision of this document.
Warnings, Cautions, and Notes Warnings, 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.
Revision Record Nexus FT RMR Revision Record Revision Letter Rev A ii Date of Change Reason for Change April 2008 Initial release 044-05207 Rev A
Preface Safety Any personnel involved in installation, operation, or service of units included in a Powerwave Distributed Antenna System (DAS) 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.
Electrostatic Discharge (ESD) Nexus FT RMR 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.
Chapter 1 Product Description Introduction This 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.
Rack Mount Radio module (RMR) Nexus FT RMR Cabinet Design The RMR modules are intended to be mounted in a 19 inch cabinet at least 600mm deep, similar to the one shown Figure 1-1. I Typical RMR position Figure 1-1 Powerwave RMR rack- fully equipped Rack Mount Radio module (RMR) Figure 1-2 RMR RMRs can handle multiple carriers over a wide band. The rack can be equipped with up to four RMRs.
Chapter 2 Controls, Indicators and Connectors Introduction This chapter contains descriptions of the controls, indicators and connectors for the RMR. Indicators Red Amber Figure 2-1 External Indicators The 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.
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Chapter 3 Installation Introduction This chapter contains unpacking, inspection, and installation instructions for installing and powering up the RMR. Site Survey Powerwave 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.
Connections Nexus FT RMR RF Connections RF cable connections should be verified both internally and externally before powering up the equipment. This section illustrates the general internal connections of the RMR. Verify these connections with the as-built drawings and documents for your specific system configuration. Table 3-1 and Figure 3-2 show the steps to connect the RMR to the Optical and RF Distribution(ORD) module.
Nexus FT RMR Commissioning Commissioning Before proceeding, carefully read the Safety section and check all connections made during the installation.
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Chapter 4 Maintenance Introduction This chapter contains periodic maintenance and performance test procedures for the RMR. Periodic Maintenance Periodic maintenance requirements are listed in Table 4-1, as well as the intervals at which the tasks should be performed. Table 4-1 Recommended Periodic Maintenance Task Interval Action Inspection of cables and connectors 12 months Inspect power, RF and Fiber cables for signs of damage or wear (frayed insulation, cracks, punctures, etc.
Troubleshooting Nexus FT RMR Table 4-2 Alarm Troubleshooting (Continued) ID 2 3 Alarm Text RMR restart Mains breakdown Alarm Unit CU External Alarm Description None Power on start, or user ordered reboot. Logged to indicate a normal power up, or a restart ordered by the operator Warning 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 up Error Software error restart 8th – 10th time.
Nexus FT RMR Troubleshooting Table 4-2 Alarm Troubleshooting (Continued) ID 15 Alarm Text CU battery fault Alarm Unit CU Alarm Description 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.
Troubleshooting Nexus FT RMR Table 4-2 Alarm Troubleshooting (Continued) ID 42 48 Alarm Text Antenna isolation Battery backup fault Alarm Unit Alarm WBA #, Channel #, UL/DL Warning 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 isolation Error Low antenna isolation at lowest gain. The gain has been reduced as much as possible but the oscillation still remains.
Nexus FT RMR Field Replaceable Units Field Replaceable Units The fan assembly is the only field replaceable component. If any other components fail please contact Powerwave for service. Fan replacement NetWay 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 the scheduling of activities.
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Chapter 5 Specifications Introduction This chapter provides specifications for the RMR.
Introduction Nexus FT RMR Table 5-1: RMR Specifications (Continued) Maximum Current Draw (Dual Band) 6 A @ 115 VAC 3 A @ 230 VAC Recommended Fuse size 10 A for AC voltage 20 A for AC voltage Power consumption 420 W typical, 600 W max Impedance Input Output 50 Ω Mechanical Dimensions (W x H x D in inches) 403 x 265.9 x 551 mm (15.9 x 10.5 x 21.
Powerwave Installation and Service Manual Worldwide Corporate Headquarters 1801 East St. Andrew Place Santa Ana, CA 92705 USA Tel: 714-466-1000 Fax: 714-466-5800 www.powerwave.com Main European Office Knarramasgatan 7 8tr 164 40 Kista, Sweden Sweden Tel: +46 8 540 822 00 Fax: +46 8 540 824 91 Main Asia-Pacific Office 23 F Tai Yau Building 181 Johnston Road Wanchai, Hong Kong Tel: +852 2512 6123 Fax: +852 2575 4860 ©Copyright 2008, Powerwave Technologies, Inc. All Rights reserved.
