User's Manual

044-05326 Rev B 4-1
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.
Troubleshooting
The 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 Faults
Table 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 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.) 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 Troubleshooting
ID Alarm Text Alarm Unit Alarm Description
1 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
breakdown
Ceasing 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
sent
Ceasing The cause of the alarm has ceased