Methods used to cascade multiple MR2 boards

The MR2 board is an OADM unit that adds/drops and multiplexes/demultiplexes two fixed carrier wavelengths. On the live network, the IN/OUT port of an MR2 board is interconnected with the OA board to receive or transmit multiplexed signals. The two new MR2 boards are cascaded by the MI/MO ports, and the MRO/MRI ports of the MR2 boards on the live network are interconnected with the IN/OUT ports. A01/A02 port is connected to the OUT port of the OTU board to receive two service signals that are locally added. The D01/02 port is connected to the IN port of the OTU board to drop two service signals to the local board.

Scroll to top