ET 312A - Supprts 16 kHz and OpenDuplex®

2-wire DSP intercom module for building of digital master- or substations. ET 311A with 6-digit alphanumeric display (16-segment), ET 312A without display. Loudspeaker, microphone and multi-function LED mounted on PCB. Connection possibility for external loudspeaker, handset, headset, headphones or gooseneck microphone, 3 inputs for floating contacts and 2 relay outputs. Optional: I/O expansion with expansion board EB2E2AHE for 2 additional inputs for floating contacts and 2 relay outputs.
Typical applications: Mounting behind panels, building of special stations.
Electret microphone; Power supply from central (optional: external fl oating supply for greater line length); built-in Class “D” amplifier with 2.5 W (1.5 W output power with supplied loudspeaker resp. 2.5 W with 4 Ohm loudspeaker); 8 Ohm loudspeaker with special membrane type for optimal sound quality; connection possibility for external loudspeaker.
Dimensions: W 70 mm, H 212 mm, D 23 mm
Weight: 128 g