Method for adding slave subracks on OSN 8800

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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.

Other related questions:
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.

Specifications for slave subrack expansion on the master subrack of OSN 8800 T32
The TN52SCC board supports a total of 20 optical and electrical subracks, containing four or less electrical subracks. The TN51SCC board supports a total of eight optical and electrical subracks, containing four or less electrical subracks. The subracks run in master/slave mode. The number of subracks here indicates the number of equivalent subracks. One OSN 6800 subrack equals to one equivalent subrack, and one OSN 8800 T32 subrack equals to two equivalent subracks.

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.

Packet board configuration for slave OptiX OSN 8800 subracks
At present, packet boards can be used only in an independent subrack, but not in the master or slave subrack when subracks are configured in the master-slave mode. When packet boards are configured in an OptiX OSN 8800 T32 subrack, the cross-connect board must be TN52UXCH or TN52UXCM, and the system control board must be TN52SCC in the subrack. When packet boards are configured in an OptiX OSN 8800 T16 subrack, the cross-connect board must be TN16UXCM in the subrack.

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.

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