User's Manual Part 3

Broadband Transceiver Card – continued
MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 9-33
PRELIMINARY
Required items
Documents
This manual for optimization and acceptance test procedures.
Tools
None
Replacement Unit
One or two 800 MHz BBX–1X card (SGLF4133)
Prerequisite
Coordinate this repair task with the OMC–R operator.
IMPORTANT
*
Contact the OMC–R operator before performing the replacement
procedure. Tell the operator that the BBX–1X card will be replaced and
that alarms can be expected.
Upon completion of the replacement procedure, have the OMC–R
operator verify that old alarms are cleared and that no new ones are
reported.
Replacement Procedure
This procedure requires working around circuitry that is
extremely sensitive to Electrostatic Discharge (ESD). Wear
a conductive, high impedance wrist strap during the
procedure.
Use appropriate safety measures.
CAUTION
If desired, record the BTS and BBX–1X serial number of the failed unit
in Table 9-61 at the end of this chapter. BBX 1 and 4 will be present if
BTS is configured for two carriers; otherwise, only BBX 1 will be
present.
9