Differences between OSN 8800 platform subracks and universal platform subracks

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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.

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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.

Power supply requirements of the OSN 9800 universal platform subracks
PIU boards are used to supply power to the OSN 9800 universal platform subracks. Rated current: 50 A (�?8 V) Nominal operating voltage: �?8 V DC or �?0 V DC Operating voltage range: �?8 V DC: �?0 V to �?7.6 V �?0 V DC: �?8 V to �?2 V

Whether the OSN 8800 platform subrack requires the system control board
At least one system control board is required for a master subrack, but no system control board is required for a slave subrack.

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.

Number of equivalent NEs that one OSN 8800 platform subrack is equal to
One OSN 8800 platform subrack is equal to one equivalent subrack.

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