Ribbon Communications has launched the TM400_2 line card.
Part of the Apollo optical networking portfolio, the new line card leverages 400G ZR+.
It delivers 400G optical transmission using standard and interoperable CFP2 DCO pluggables, optimised for transport over colourless directionless contentionless (CDC) ROADM networks, in either independent wavelength or dual carrier modes.
Leveraging multiple wavelengths allows for longer transmission distances. In independent wavelength mode, the TM400_2 uses two 400G wavelengths to provide cost efficiencies for metro applications. In dual carrier mode, it combines two high-performance 200G wavelengths to provide a 400G channel for long haul applications.