Whether the OSN 8800 platform subrack requires the system control board

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At least one system control board is required for a master subrack, but no system control board is required for a slave subrack.

Other related questions:
Whether a system control board is required in an OSN 8800 platform subrack when it is used as a slave subrack
When an OSN 8800 platform subrack functions as a slave subrack, it does not require a system control board. Its IU17 and IU18 slots can be used to house service boards. When it functions as a master subrack, a system control board is required.

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.

Whether NS4 boards in the OptiX OSN 8800 platform subracks support the regeneration mode
TN54NS4: On the OptiX OSN 8800 T64, OptiX OSN 8800 T32, and OptiX OSN 8800 universal platforms, NS4 boards support only the regeneration mode. TN56NS4: On OptiX OSN 8800 T64 and OptiX OSN 8800 universal platforms, NS4 boards support only the regeneration mode.

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.

Power supply requirements of the OSN 8800 subracks
Standard operating voltage: �?8 V to �?0 V DC Operating voltage range: �?8 V DC: �?0 V to �?7.6 V �?0 V DC: �?8 V to �?2 V Rated current (�?8 V): OSN 8800 T64 subrack: 200 A (area-specific power supply, with 50 A current for each area) OSN 8800 T32 subrack: 100 A (area-specific power supply, with 50 A current for each area) OSN 8800 T16: 50 A OSN 8800 platform subrack: 25 A OSN 8800 universal platform subrack: 50 A

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