User's Manual

APEX730 USER MANUAL V1.0.00 Tech Support: 1-888-317-8766
8
2.4.2 Internal Configuration
2.4.3 RFU (RF Unit)
The RFU (RF Unit) is a bi-directional amplifier that sharply filters out unwanted noise.
2.4.4 Duplexer
A duplexer is a device that combines two or more signals onto a common channel or
medium to increase its transmission efficiency.
2.4.5 PSU (Power Supply Unit)
The AC-DC adaptor supplies a steady DC power to the APEX730 equipment by drawing
power from the general in-wall AC outlets.
2.4.6 NCU (Network Control Unit)
The NCU (Network Control Unit) is the control unit of the APEX730. The NCU controls and
monitors operational parameters, alarms, records event and performs many other functions.