Summary:

The ML4027-DCO-HLB-X is a CFP2-DCO Host side Loopback. Power-up using single supply 3.3 V and power-up using dual supply (5 V AND 3.3 V) available. MDIO interface, FTDI Chip accessible through USB connector, access to Control/Alarm signals provided through pin headers, Current, Voltage, Temperature Sense. Does not provide access to the High Speed Tx/Rx Channels, but acts as a host side Loopback connecting Tx and Rx.