COVERAGE SOLUTIONS NEXUS FT RACK MOUNT RADIO I N S T A L L AT I O N A N D S E R V I C E M A N U A L 0 4 4 - 0 5 3 2 6 R E V.
© 2010 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.
Revision Record Revision Letter Date of Change Reason for Change Rev A September 2008 Initial release Rev B July 2010 Updated manual to show new FT RMR product 044-05326 Rev B iii
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Nexus FT RM RMR Table of Contents TABLE OF CONTENTS Warning, Cautions, and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Human Exposure to RF Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Nexus FT RM RMR List of Figures 1-1 Powerwave Nexus FT RM rack- fully equipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1-2 Nexus FT Rack Mount Radio (RMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2-1 External Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface Warning, 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.
Electrostatic Discharge (ESD) Nexus FT RM RMR Radiation Exposure The 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 power 800/900 MHz 1800/1900 MHz 2100 MHz 4.5W/m² 9.0W/m² 10.
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 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.I Typical RMR position Figure 1-1 Powerwave Nexus FT RM rack- fully equipped Rack Mount Radio module (RMR) RMRs can handle multiple carriers over a wide band. The cabinet can be equipped with up to four RMRs.
Chapter 2 Indicators Introduction This chapter contains descriptions of the controls, indicators, and connectors for the Nexus FT 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 Nexus FT 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 Connections Downlink and Uplink RF 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.
Nexus FT RMR Connections Main Power and Grounding Local 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.
Commissioning Nexus FT RMR Commissioning Before 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.
Chapter 4 Maintenance Introduction This chapter contains periodic maintenance and performance test procedures for the Nexus FT 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 unit. If any other components fail, please contact Powerwave for service. Fan Removal and Replacement Refer to Table 4-3 and figures 4-1 and 4-2. Table 4-3 Fan Removal Step Action 1 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.
NetWay Manager (NWM) Nexus FT RMR 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 scheduling activities. Return For Service Procedures When returning products to Powerwave, the following procedures will ensure optimum response.
Chapter 5 Specifications Introduction This chapter provides specifications for the Nexus FT RMR.
Introduction Nexus FT RMR Table 5-1: RMR Specifications (Continued) Recommend Fuse Size 10 - 20 A for AC Voltage Power consumption 420 W typical, 600 W max Impedance Input Output Not Applicable 50 Ω Mechanical Dimensions (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-Type Donor Port Connector SMA Environmental Operating Temperature Range -0 °C to +55 °C (32°F to +131°F) Altitude -142 m to 4000 m (-466 ft.
