User's Manual

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communication data from Remote Optic and reports the unit's own value to upper devices. At
the front of the module, it has LED indicator to show system status, letting you check any
abnormalities at a time. At the same front, it also has communication LED Indicators to show
communication status with upper devices. Through RS-232C Serial Port, the unit enables you to
check and control device status through PC and laptop. This equipment is indoor use and all the
communication wirings are limited to inside of the building.
Figure 4.29 – RCPU Outer Look
5) Multiplexer
Multiplexer works as a module to combine or distribute multiple signals into one antenna.
This device has a port to combine multiple signals. You need to connect input and output ports
of RDU through a corresponding port.