Whether an ST2 board can be configured in a slave subrack

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You are advised to configure an ST2 board in the master subrack. The ST2 board can be configured in a slave subrack if no orderwire function is used.
If the clock functions of the ST2 board need to be used, the board needs to be configured in a subrack equipped with clock boards.

Other related questions:
Whether universal line boards can be used in slave subracks
No. Universal line boards can be used only in independent subracks, but not in the master or slave subracks.

Whether an ST2 board intended for an OSN 8800 subrack can be installed in an OSN 6800 subrack
An ST2 board intended for OSN 8800 can be used in an OSN 6800 subrack. To use the clock function of an ST2 board, the ST2 board must be inserted to the subrack equipped with clock boards.

Whether SDH boards can be used in an OSN 8800 slave subrack
SDH boards can be used only in an independent OSN 8800 subrack, but cannot be used in a subrack in master-slave mode.

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

Whether it is feasible to reset the system control boards in a new slave subrack only when this slave subrack is added
1. To add a slave subrack, set the DIP switches, power on the subrack, connect the ETH port, and check whether the indicator status is normal. No reset is required. 2. If the ID of the new subrack conflicts with the ID of an existing subrack, two methods are available. One method is to change the ID of the new subrack first, and then power off the entire NE to restart it. This process adversely affects services on the existing master and slave subrack. The other method is to change the ID of the new subrack, perform a warm reset on all boards in the existing master and slave subracks, and power off the new subrack to restart it.

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