C-DOT DSS MAX-XL, Installation Manual, Page: 364 / 379

Chapter 18.
364 C-DOT DSS MAX-XL
3. Switch off PSU (slot 1) plane 0 of SCU, alarm should come indicating
plane 0 PSU faulty in SCU.
4. Switch on the both PSUs back, alarm for PSU in SCU should be
cleared.
5. Make all the units inservice.
6. Repeat step 1 to 5 for PSU cards of plane 1.
18.14.3. BTU Alarm Test
Set up
A duplex system
1. Switch off one power supply of plane 0 of BTU0, alarm should be
raised indicating one of the power supply is faulty in plane 0 of
BTU0. Check the status of all IFC cards which are equipped.
They should be inservice active.
2. Switch on the power supply of plane 0 of BTU0, alarm for PSU
on ADP & OOD should be cleared.
3. Repeat steps 1 to 2 for all other PSU cards of BTU0 and BTU1
taking one at a time.
18.14.4. SSU Alarm Test
Set up
A duplex system
1. Switch off one PSU of plane 0 of SSU0. Alarm should be raised
on ADP and OOD indicating one PSU in SSU0 faulty.
2. Switch on the PSU of SSU0, alarm should be cleared.
3. Repeat step 1 to 2 for other PSU cards of SSU0 and SSU1 taking
one at a time.
18.15. SYSTEM STABILITY
For checking that the whole configuration is stable in different combinations it is
very essential to do rigorous diagnostics on all units of Central Module as well as on
all Base Modules. Hence following command files are made and they are run at
night for checking the stability of the full configuration. Command files create log
files with original name and extension .log, check for error messages and take
remedial action.