When OptiX BWS 1600G SCC board is replaced with the SCE, TC2 board reports BD_STATUS alarm.
Symptom
In the OptiX BWS 1600G V100R001 (OptiX BWS 1600G-III), NE software version is 5.08.01.31. It is found that the TC2 board in slot 6 reports the BD_STATUS alarm. At the beginning, it is suspected that the board or slot is faulty. After they are replaced, the problem persists.
It is found that an SCE board is inserted in slot 7 of the same subrack. When we asked the equipment room maintenance personnel, it was told that the previous SCC board is faulty; therefore an SCE spare board is used to replace the faulty SCC board.
Cause Analysis
The SCE board is a simplified version of the SCC. It has no orderwire module and cannot monitor the TC1/TC2 board.
Procedure
- Replace the TC2 board, the problem persists.
- Remove the TC2 board in slot 6 and insert it into slot 8. The problem persists.
- Replace the SCE board with an new SCC board. The problem is resolved.
Reference Information
Compared with the SCC board, the SCE board does not provide the orderwire function, and cannot monitor the SC1/SC2/TC1/TC2 board. Therefore, observe the preceding differences when replacing the SCC board with the SCE board.
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