ET 871 - Supports OpenDuplex®

2-wire DSP intercom module with built-in loudspeaker in rugged build-in housing with mounting tabs. The DSP-technology ensures the highest possible speech quality at high ambient noise levels, even from great distance. Includes one input for floating contacts and one relay output. The build-in electret microphone MIC 480 is included in the extent of supply.
Prepared for connection of two buttons.
Typical applications: Mounting behind panels or in housings, for all types of call or emergency call devices, for example emergency help points, lift cabins, etc. Omnidirectional electret microphone; external power supply required (12 – 24 V AC or 16 – 24 V DC); built-in amplifier with 1.5 W with built-in 8 Ohm loudspeaker.
Dimensions: W 109 mm, H 87.5 mm, D 40 mm
Weight: 220 g