ODU granularities that can be transmitted together by the NS4 board

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The NS4 board supports hybrid transmission of ODU0, ODU1, ODU2/ODU2e, ODUflex, and ODU3 granularities.

Other related questions:
Whether G.652 fibers can be used for NS4 boards
G.652 fibers can be used if the door of the cabinet housing the NS4 boards can be properly closed.

Whether the HBA board can be used together with the SFIU board
No. The HBA board must be used together with the TN13FIU02 board.

OSC boards that can work together with the SFIU board
The OSC board that works with the SFIU board must be ST2, because the ST2 board supports either the 1511 nm or 1494 nm pluggable optical module. When the ST2 board works with the SFIU board, the operating wavelength of its RM1/TM1 port is 1511 nm and that of its RM2/TM2 port is 1491 nm. The SFIU board converges these two monitoring signals so that they can be transmitted over one optical fiber, implementing the commissioning-free and compensation-free functions defined in IEEE 1588v2.

Whether boards in compatible mode and boards in standard mode can be interconnected or used together
1. On the backplane side, the boards in compatible mode and standard mode can be interconnected with each other without any restrictions. 2. On the line side, the boards in compatible mode and standard mode can be interconnected only when the following settings of the boards are the same: timeslot mode (Assign consecutive or Assign random), port rate (standard or speedup mode), mapping path, FEC mode, channel number, differential mode (differential or non-differential), and modulation format (DQPSK, DRZ, or ODB).

Whether TOM boards can transmit 2.5G services
TOM boards can transmit 2.5G services but one TOM board can transmit a maximum of four channels of 2.5G services.

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