200Gb/s QSFP56 FR4, Duplex SMF LC, 2-km

10Gtek’s QSFP56 200G transceiver module is designed for use in 200 Gigabit Ethernet links over 2Km single mode fiber. The module has 4 independent electrical input/output channels

operating at 26.5625GBd per channel. This transceiver consist a transmitter/receiver unit operating on a set of 4 wavelengths on the ITU G.694.2 CWDM grid near 1300nm.

The transmitter path of the module incorporates a bi-directional PAM4 retimer ASIC integrated with a 4-channel modulator driver, 4 externally modulated lasers and one optical multiplexer.

On the receiver path, one optical de-multiplexer is coupled to 4 photodiodes and one 4-channel linear TIA arrays, along with the PAM4 re-timer. The electrical interface of the module is compliant with the 200GAUI-4 interface as defined by IEEE 802.3bs.