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.

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