Whether fibers are required to interconnect the TOM and NQ2 boards on the OSN 8800

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On the OSN 8800, a TOM board is a tributary board while an NQ2 board is a line board. They are interconnected using cross-connections configured on the NMS instead of using fibers. A cross-connect board is used to achieve the cross-connections between the TOM and NQ2 boards so that services on the two boards can be interconnected.

Other related questions:
Whether there are fiber connections between an NQ2 board and a TOM board on an OSN 8800
There is no fiber connection between an NQ2 board and a TOM board. The two boards are interconnected through a cross-connect board.

Whether there are fiber connections between the NQ2 board and the TOM board on OptiX OSN 8800
There is no fiber connection between the NQ2 board and the TOM board, which are interconnected through a cross-connect board.

Whether there are special slot requirements of the THA board on the OSN 8800
To facilitate fiber maintenance, the THA board cannot be inserted into a slot at the edge of a subrack or a slot next to slots housing high-density boards such as other THA boards.

Whether services on the TOM board and TOA board can be interconnected
Yes, they can be interconnected on the OSN 8800 when the two boards have the same service type and mapping mode settings.

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.

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