Installation Instructions

Operations and Maintenance
1 Introduction
This part of the manual describes operations and maintenance procedures for
the RBS 884 Pico (1900 MHz) system. These procedures include instructions
for identifying faults and replacing faulty equipment, when necessary.
2 Maintenance Overview
RBS 884 Pico (1900 MHz) maintenance includes general maintenance, such
as those identified in Section 2.1 on page 6-3, and hardware replacement
procedures. The use of the hardware replacement procedures by a site
maintenance technician may depend on instructions from MSC personnel
able to determine the status of the RBS site equipment from the MSC.
The site maintenance technician may be asked to replace a particular unit
using one of the procedures in this part of the manual, or to follow additional
troubleshooting procedures. The troubleshooting procedures are also used
if failures occur during the Power-up Procedure in the Installation part
of this manual.
Operations and maintenance procedures in this document apply to both
the rack mount Control and Radio Interface (CRI) subrack and the floor
mount CRI cabinet.
2.1 General Recommendations
The following routine tasks should be performed when maintenance
personnel are at the site:
• On the front of the units, verify that the green Power LEDs are ON
and that the red Error LEDs are OFF.
• Check the direct current (DC) power cables to the CRI.
• Check the fan unit cables.
• Check the Extension Module Regional Processor with Speech Bus
Access (EMRPS) connections.
• Check the Pulse Code Modulation (PCM) transmission connections.
• Clean dust and debris from the CRI fans.
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