User's Manual Part 2

Field Replaceable Parts and Modules OS-1933-E3-003
044-05243 Rev A 4-5
MCPA Removal and Replacement
Perform the instructions in Table 4-4 to remove and replace the MCPA shown in Figure 4-1 MCPA Removal
and Replacement.
CAUTION: When removing the MCPA from the subrack, support the rear of the MCPA to prevent a sud-
den drop when the guide rail disengages from the track. This could damage the rear multi-pin connector.
The MCPA weights approximately 20 lbs. (9.1 kg).
If an MCPA module is removed, another MCPA or blank panel must be installed in its place to provide ade-
quate cooling.
Always disable the MCPA of a sector prior to the removal of a MCPA or RFCU of that sector.
Table 4-4 MCPA Removal and Replacement Procedures
Step Action
1 Set OFF/ON/RESET switch on front panel of MCPA down to OFF.
2 Rotate latches securing MCPA to subrack counterclockwise.
3 With steady even pressure, use handle on front of MCPA to slide MCPA out of subrack.
4 Replace MCPA by carefully sliding MCPA into empty subrack slot. Secure MCPA by turning two latches
clockwise.
Figure 4-1 MCPA Removal
MCPA
Quarter-Turn
Fasteners