The following illustration shows a cassette style O-Band demultiplexer configuration
of the expanded fiber tray.
Using the O-Band demultiplexer in the expanded fiber tray, the four multiplexed
13xx multi-wave forward path signals are demultiplexed and feed into the four
individual receiver modules to achieve 4x forward segmentation with a single fiber.
Note: This solution requires an O-Band multiplexer at the headend as shown in the
following illustration.