The digital Audio Recording Card G3-AUD for the Intercom Servers GE 300 provides four or two audio channels as Plug-&-Play interface to PA systems and Radio systems with up to 16 kHz audio bandwidth. All audio in- and outputs have level adjustment, a Graphic Equalizer for adjustment of the tone characteristics and are galvanically isolated. The G3-AUD card contains relay contacts, which can be used for any desired function.