Whether 1:1 protection can be configured for the SXM and XCT boards configured in an OptiX OSN 8800 T64 subrack

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In an OSN 8800 T64 subrack, intra-subrack ODUk service grooming is shared by one SXM board and one XCT board. An OSN 8800 T64 subrack adopts dual-side configurations. It has two SXM boards and two XCT boards. The SXM and XCT boards on the front and back sides work in 1:1 protection mode.

Other related questions:
Relationship between SXM and XCT boards in an OSN 8800 T64 subrack
When the SXM and XCT boards work together in an OSN 8800 T64 subrack, ODUk cross-connections can be scheduled. The two boards do not form active/standby protection. To configure 1 + 1 backup for SXM boards, you need to insert two SXM boards of the same version into IU10 and IU44 slots or IU9 and IU43 slots. When an OSN 8800 T64 subrack contains only SXH or SXM cross-connect boards and XCT boards need to be added to support ODUk services, you must insert the physical boards before adding logical boards; otherwise, existing SDH services will be interrupted.

Principles for configuring the ST2 board in the OptiX OSN 8800 T64 subrack
The ST2 board is optional for an OptiX OSN 8800 T64 subrack and is configured based on service requirements. It receives, processes, and transmits two OSC signals in the east and west directions. In addition, it can process IEEE 1588v2 synchronous clock signals and transparently transmit two FE signals. The ST2 board is not recommended for the networks where the ROP board, Raman board, HBA board, or optical-layer ASON is used. In such a network, the SC1 or SC2 board is recommended.

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 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 12ND2 can be housed in an OptiX OSN 8800 subrack
12ND2 can be housed only in an OptiX OSN 8800 universal platform subrack, or an OptiX OSN 6800 subrack.

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