User's Manual

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6.3.1 OEU Operation
OEU is in shelf enclosure type. OEU is located at a remote closet in a building. And it
can be installed into a rack.
OEU is for role as hub. It is to expand toward campus cluster, it is only one optical
cable to expand 8ROU.This is reason why OEU supports up to 2DOU. The DOU
supports up to 4optical port to connect ROU
Basically, one antenna is provided. To install a variety of antennas, you need such
devices as a divider and a coupler. ROU can work with a DC Feeder and an Optic
Cable Feeder. For power supply of ROU, a power supply in AC-DC and DC-DC type is
provided to let you select a power supply suitable for an application.
For upper level, ROU can be connected with ODU and OEU. It has AGC function for 5dBo of
optical cable loss.
The following show operational procedures after installation of ROU.
Checking the status of ROU's LED Indicator
After turning on the switch of the power supply in ROU, check information on each
module's LED of the system. The table below shows normal/abnormal cases
depending on the status of each module's LED.