Difference between enhanced subracks and general subracks

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Subracks have two types: enhanced and universal. The two types of subracks have the same appearance but different backplane bandwidths and electrical cross-connection capabilities.

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Method used to distinguish between enhanced and general OSN 8800 T32 subracks
OSN 8800 T32 subracks marked "Enhanced" on the appearance are enhanced ones, while those are not marked "Enhanced" are general ones. They are displayed as "OSN8800 T32 enhanced" and "OSN8800 T32 standard" respectively on the NMS.

Differences between OSN 8800 platform subracks and universal platform subracks
An OSN 8800 universal platform subrack provides 20 slots. Slots IU1 and IU2 house SCC boards. When only one SCC board is configured, IU2 can house a service board. When an OSN 8800 universal platform subrack functions as a slave subrack, no SCC board can be configured. In this scenario, both IU1 and IU2 can house service boards.

Differences between OptiX OSN 8800 platform subracks and universal platform subracks
OptiX OSN 8800 platform subracks can be installed in N63B and N66B cabinets. Each subrack has 18 service slots and its rated current is 25 A. OptiX OSN 8800 universal platform subracks can be installed in N63B, N66B, and 19-inch cabinets. Each subrack has 16 service slots and its rated current is 60 A, providing stronger power supplies.

Whether an OSN 3500 enhanced subrack and an OSN 8800 T16 subrack can be installed in the same N63B or N63E cabinet
They can be installed in the same N63E cabinet only. In addition, fiber spools must be removed from both sides of the cabinet, and the positions of mounting ears must be adjusted.

Communication between a newly installed OptiX OSN 8800 subrack and existing subracks
If the newly installed subrack is configured as the slave subrack, connect the ETH port on the EFI board of the subrack to the ETH port on the EFI board of the existing subrack. If the newly installed subrack is configured as the master subrack, use extended ECC or SC2 for communication.

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