The SPCV340.000 is an audio expander that propagates through the SPC system via X-BUS as audio verification zone, 4 wired zones and 1 max. 400 mA. With microphone and built-in speaker, which generates pre and post audio recording to the event, live audio (talk / listen) between CRA / CMS and the SPC system. Audio with up to 3 satellites (SPCV310 / 410) that can be connected to the expander. Internal speaker: 5W / 16 O, electret microphone. 1 audio output for connection to public address system. Tamper front and rear. ABS plastic housing. Operating temperature: -10 to 50 ºC. Min./max. without satellites: 60/75 mA. Dimensions: 141 x 106 x 42 mm.