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Chapter 18.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
Finally all units of AM and CM should be inservice.
18.6. SCU DIAGNOSTICS
18.6.1.
SSC Diagnostics
Set up
IOP-0 is INS-ACT
AM, CM completely initialised and all units are inservice
1.
2.
3.
4.
352
Give a reset to SSC-1 again, SSC-0 will take over code loading and
wait for complete code loading and SCU to come up.
Check the status of all units of SCU. All units of CM are SSC-0, SSC-1,
CMS1, CMS2, CMS3, CMS4, SS-0, SS-1, SSBID-0, SSBID-1,
NSC/CLK-0, NSC/CLK-1, MU-0, MU-1. Let SSC-0 be active and SSC-1
standby.
Make CMS2 OOS-OPR
Give soft start to CM, CM should come up through only available
CMS1.
Bring CMS2 inservice
Make CMS1 OOS-OPR
Give soft start to CM, CM should come up through only available
CMS2.
Bring CMS1 inservice
Interchange SSC
Repeat step 11 to 16
Interchange AP
Repeat step 3 to 18
Make SSC-0 OOS-OPR, SSC-1 INS-ACT
Give a command DGN-SWU for SSC-0. If diagnostics are okayed then
bring SSC-0 inservice by PUT-SWU-INS command. If diagnostics are
failed take appropriate action and give diagnostics again.
Interchange SSCs
Repeat step 1 to 3 for SSC-1.
C-DOT DSS MAX-XL
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