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The Twin-port 2xDR4/DR8 transceiver is a key innovation with two internal transceiver engines enabling 64-ports of 400Gb/s in a 32-OSFP cage
ACC is an active DAC with a pre-emphasis equalizer IC included in each end
providing stable and secure single-mode fiber links
6T-ACBH is a 1
short reach 8-channel (2xSR4/SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers
Cisco QDD-400G-FR4-S Compatible 400GBASE-FR4 QSFP-DD PAM4 1310nm 2km DDM/DOM Duplex LC SMF Optical Transceiver Module Model:QDD-400G-FR4 The Twin-port 2xDR4/DR8 transceiver isDescription NADDOD Cisco QDD 400G FR4 S Compatible QDD 400G FR4 optical transceiver features a duplex LC connector and supports transmission distances of up to 2 km over parallel single mode fiber. It converts eight 50 Gb s PAM4 electrical signals into four CWDM optical channels, multiplexed into a single 400 Gb s optical link. On the receiving side, the 400 Gb s optical signal is demultiplexed into four CWDM channels and converted back into eight 50