Message Controller When combined with a Message controller, voice sounders can transmit upto 7 messages via a simple two-core cable. The control unit has two status indication LED’s mounted on its front face; a green ‘System Health’ indicator and an amber ‘fault indicator’. Enables voice sounders to transmit up to 7 messages via a two-core cable Fully synchronised voice messages System health indicators Simple operation C ompatible with any of the Sonos Voice Sounders and the Nexus red LED voice sounder beacon (PNV-0003) Applications - General signalling Industrial 2-Wire Interface System Interface Unit Volt Free Contacts (Can be Push-button, Relay, Norm Open Contacts etc.) Quiescent Current Alarm Current Sounder Load Control Unit IP Rating: Indoor Operating Temp: -25ºC to +70ºC Dimensions: 131mm W x 178mm H x 60.5mm D Construction: Polycarb Flame Retardant Signalling Solutions