Method for adding slave subracks on OSN 8800

Precautions and operation procedure for adding slave subracks:
1. According to the planned design, adjust the DIP switch (modifying the subrack ID) corresponding to the newly added slave subrack to ensure that the DIP switch is set as planned.
2. Power on the new slave subrack.
3. Connect the new slave subrack to the original subrack.
- If subracks are cascaded in tree mode, connect the new subrack to the original subrack through the ETH1, ETH2, or ETH3 port of the EFI2 board.
- If subracks are cascaded in ring mode, remove any cascading network cables (it is recommended that the cascading network cable connecting to the protection port be removed). Then connect the newly added slave subrack with the subrack whose cables are removed through the ETH1 or ETH2 port of the EFI2 board.
4. Verify the connection and settings between the master and slave subracks. For details, see the section for commissioning the master and slave subracks on OSN 8800 T32/T64.
5. Connect the indicator cascading cable.
Note: The following takes OSN 8800 T32/T64 subracks for example. The operation procedures for OSN 8800 T16 subracks, OSN 8800 platform subracks, and OSN 8800 universal platform subracks are similar except that the DIP switch positions, ID display positions, and ports are different.
For OSN 8800 T32/T64 subracks, the subrack ID is set through the DIP switch on the EFI1 board and is displayed on the SCC board. The master and slave subracks are connected through the ETH1, ETH2, or ETH3 port on the EFI2 board.
For OSN 8800 T16 subracks, the subrack ID is set through the DIP switch on the EFI board and is displayed on the AUX board. The master and slave subracks are connected through the ETH1, ETH2, or ETH3 port on the EFI board.
For OSN 8800 platform subracks, the subrack ID is set through the DIP switch on the AUX board and is displayed on the EFI or SCC board. The master and slave subracks are connected through the ETH1 or ETH2 port on the AUX board.
For OSN 8800 universal platform subracks, the subrack ID is set through the DIP switch on the EFI board and is displayed on the EFI or SCC board. The master and slave subracks are connected through the ETH1, ETH2, or ETH3 port on the EFI board.

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