Microphone Inputs for RealPresence Group 300/310/500

The RealPresence Group 300, RealPresence Group 310, and RealPresence Group 500 systems have one microphone input, as shown in the following figure.

Line drawing of the rear panel of a RealPresence 300 or 500 system with the microphone input port highlighted. The microphone input port is located between the two audio ports in the middle of the codec.