NVIDIA MMS1V90-WR Compatible 400GBASE-LR4 QSFP-DD PAM4 1310nm 10km DOM Duplex LC SMF Optical Transceiver Module

NVIDIA/Mellanox Ethernet MMS1V90-WR Compatible 400GBASE-LR4 QSFP-DD PAM4 1310nm 10km DOM Duplex LC SMF Optical Transceiver Module; uses a high-quality EML Laser transmitter operating at 1271, 1291, 1311, 1331 nm nominal wavelength The QSFPDD-400G-LR4 is a 400Gb/s Quad Small Form Factor Pluggable-double density (also name as QSFP56-DD) optical module designed for 10km optical communication applications. The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals, and multiplexes them into a single channel for 400Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 400Gb/s optical input into 4 channels of CWDM optical signals and converts them to 8 channels of 50Gb/s (PAM4) electrical output data.The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. The QSFPDD-400G-LR4 contains a duplex LC connector for the