Functions and replacement precautions for the system control board in an OSN 6800 slave subrack

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The SCC board in a slave subrack provides the following functions:
1. Communicates with the boards without software to control the working status of the boards.
2. Receives overhead signals from service boards by using RS485A or RS485B buses and processes the overhead signals.
3. Processes the overhead signals that are transmitted from the master subrack and delivers them to the service boards.
4. Detects whether each board in a subrack is online and uses the AUX board to report the status information to the system control board in the master subrack.
5. Provides two RS485 buses for urgent data transmission.
6. Provides required power supplies for the local board and provides 3.3 V centralized power supply backup for the entire OSN 6800 system. In addition, provides power supply backup for the boards whose maximum power consumption is less than 60 W. However, it provides power supply backup only for one board at a time.

Other related questions:
Precautions for replacing the system control board in a slave subrack of the OSN 6800
Before replacing a system control board, ensure that the spare board whose board type is the same as the system control board to be replaced. In addition, ensure that battery jumper on the spare board has been correctly set.

Whether TN52SCC can be used as the system control board in a slave subrack when the master subrack of the OSN 6800 uses TN11SCC as the system control board
If the software version of TN11SCC is later than 5.35 in the master subrack of the OSN 6800, TN52SCC can be configured in a slave subrack. To ensure automatic software synchronization, ensure that the TN11SCC software package includes the TN52SCC software package.

Precautions for standby SCC board replacement in the master OptiX OSN 6800 subrack
Data between the active and standby SCC boards must be synchronized, and the active and standby SCC boards must use the same hardware model.

Whether an OptiX OSN 8800 subrack can function as a slave subrack of an OptiX OSN 6800 subrack
Yes, it can function as a slave subrack of an OptiX OSN 6800 subrack.

Whether TN52SCC boards can be installed in a slave OSN 6800 subrack
Yes, they can.

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