User's Manual Part 3

Group Line Interface Card
9-24 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004
PRELIMINARY
Introduction
The procedures in this section cover only the Group Line Interface
(GLI) 3 card. The GLI3 occupies the third slot in the CCP2 Shelf.
System Impact/Considerations
An interruption in call processing will occur if the GLI3 card is failing
or fails.
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 GLI3 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.
When this module is removed, the BTS will shut down
because card interface and communication will be
interrupted. It is recommended that replacing the GLI3 be
performed during a maintenance window.
IMPORTANT
*
Required Items
Documents
This manual for the optimization and acceptance test procedures.
Tools
None
Replacement Item
One GLI3 card (SGLN5975)
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
9