User's Manual Part 3

MCC Data Only (MCC–DO) Card – continued
9-42 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004
PRELIMINARY
Table 9-23: MCC–DO LED States
LED SPANStatusColor
–– OFF Both ENET and TAT link are down.
NOTE: In the case of some spans on a given MCC–DO having Yellow alarms, and other
spans having Red alarms, a Red Alarm state should be indicated.
Required Items
Documents
None.
Tools
None.
Replacement Items
One MCC–Data Only card (SGLN6146)
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 MCC–DO 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
If desired, record the BTS and MCC–DO serial number of the failed unit
in Table 9-63 at the end of this chapter.
Remove MCC–DO Card
Follow the procedure in Table 9-24 to remove the MCC–DO card.
Table 9-24: Procedure to Remove MCC–DO Card
Step Action
n WARNING
Disengaging the MCC–DO card from the CCP2 Shelf will cause the site to be shutdown due to the
disruption in signal processing.
1 Notify operator that the MCC–DO card replacement procedure is starting and that alarms can be
expected.
table continued on next page
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