Signal flow of SC2 boards for OptiX BWS 320G

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The optical signals input to the RM1 and RM2 ports of the SC2 board are sent from the RM port of the SCA board. The optical signals output from the TM1 and TM2 ports of the SC2 board are sent to the TM port of the SCA board.

Other related questions:
Whether the SC2 board on BWS 320G can be used on BWS 1600G
The SC2 board on BWS 320G cannot be used on BWS 1600G.

Whether SC2 boards on BWS 320G and BWS 1600G are compatible with each other
SC2 boards on BWS 320G and those on BWS 1600G devices are incompatible with each other.

Ports for connecting cables on the SCA boards of BWS 320G
Optical port RI on the front panel of SCA boards is an input interface for external optical signals in the OptiX BWS 320G system. The input interface receives signals in the primary channel and OSC sent by the remote OptiX BWS 320G system. TO is an output interface for external optical signals in the OptiX BWS 320G system. The output interface sends multiplexed signals in the primary channel and OSC at the local station to the downstream station.

Method of connecting fibers on an LWC board of OptiX BWS 320G
On an LWC board, RI is connected to D32, and TO is connected to M32. RO and TI are connected to client-side devices.

Whether optical signals of the SC2 board are originated from multiplexed signals or received by the SC2 board
The OSC signals received by the SC2 board are sent from the laser of the peer SC2 board and then are split by the FIU board. They are not multiplexed signals.

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