363-206-285 Detailed Level Procedure: DLP-501
Issue 2, February 2000 Page 1 of 8
DDM-2000 OC-3 MULTIPLEXER
Replace BBG8/BBG8B/BBG5 SYSCTL
In Service
This procedure is used for replacing a BBG8/BBG8B/BBG5 SYSCTL in an
in-service shelf. For procedures to install the SYSCTL in a new shelf (initial
installation), refer to DLP-549.
1.
!
CAUTION:
TIMING
slot
2
should always be equipped with a
TGS/TG3
circuit pack
and be active prior to replacing the
SYSCTL
. To clear a
C
condition from
the
SYSCTL FE ID
display, procedures will require removal of the
TGS/TG3
circuit pack from
TIMING
slot
1
to force the system to run the
new software.
Before performing this procedure, ensure that both TGS/TG3 circuit packs are
installed in the shelf. If possible, use the
switch-sync:s=circuitpack,pri=manual command to switch to the
protection TGS/TG3 circuit pack in TIMING slot 2, if not already ACTIVE.Use
rtrv-sync: command to verify that the protection TGS/TG3 circuit pack is
ACTIVE.
2. Are you replacing a BBG8/BBG8B SYSCTL with another BBG8/BBG8B
SYSCTL or replacing a BBG5 SYSCTL with a BBG8/BBG8B SYSCTL?
If REPLACING BBG8/BBG8B, then continue with Step 3.
If REPLACING BBG5, then proceed to Step 4.
3. Remove and inspect circuit pack being replaced for proper option switch
settings. Set option switches on the replacement BBG8/BBG8B SYSCTL the
same as the original. See Figure 1.
Proceed to Step 7.
DLP-549
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