The CXA049 un-balanced audio extender has two units (sending unit and receiving unit). These units designed for consumer signal transmission, it work without power supply. Built-in audio isolation transformer converts stereo signals into balanced signals transmitted over network cables up to 100m away. Built-in audio isolation transformer eliminates humming causes by grounding circuit. The sending and receiving units have an "EXPAND" connection that allows two pairs of devices to expand into four audio channels through a single network cable.
The housing design with mounting holes can be easily installed under the table, on the wall, and inside the rack. Analog audio can be transmitted using embedded network cables instead of using another new audio cables.