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At the same front, it also has communication LED Indicators to show communication status with upper
devices. Through Local port, the unit enables you to check and control device status through PC and
laptop.
It provides three interface port with ARUs to communicate with these. It also provide dry contact port,
which is (1) output port and (1) input port.
Figure 11. AC-DC RPSU Outer Look
3.1.3.5 Multiplexer
Multiplexer it called combine unit(CU) works as a module to combine or distribute multiple
signals into one or two antennas.
This device has a port to combine multiple signals. You need to connect input and output ports
of RDU through a corresponding port.
Figure 12. Multiplexer Outer Look