Installation Instructions

1X UBS Macro B T S FRU RX Splitter
The RX splitter is not redundant.
The following strategy is used during replacement of the RX splitter . When the RX splitter
is disconnected/removed:
• XMI 1 remains connected to the RX main RF antenna signal outputs for each sector , but
has no connection to the RX diversity RF antenna signal outputs for each sector .
• XMI 2 remains connected to the RX diversity RF antenna signal outputs for each sector ,
but has no connection to the RX main RF antenna signal outputs for each sector .
Alarms will be reported during the replacement procedure.
A fter the RX splitter is replaced, all affected RX paths must be tested, and if necessary
reoptimized to ensure accurate RF power levels. Refer to the 1X UBS Macro BTS
Optimization/A TP manual for test and optimization procedures.
A thorough troubleshooting of the RX antenna paths and all associated XMIs and cables is
required to pinpoint a failure to the RX splitter .
Table 11 -1 FRU R eplacement Conditions
FRU
Ref Designator What to Shut Down...
RX Splitter Not Applicable Nothing
Required Items
Documents
• 1X UBS Macro BTS Optimization/A TP manual.
Tools
• T25 TORX bit
• T orque driver
Torque Requirements
• M5 mounting screws - 4.77 N -m (42 in -lb)
Replacement Unit
• W ide band (800 MHz through 2.1 GHz RF bands) RX splitter (Motorola model STRG4029)
68P09283A64 -3 11 -3
FOA SEP 2007