Audio loudspeaker unit for 2-wire system SB2 including terminal block. Integrated equipment feature is the handicap function according to DIN18040 with status display door call, ready to talk, door opener function and participant availability visually with LEDs behind standardized handicap symbols as well as acoustic voice output of the status. Voice connection with echo suppression, dust and waterproof loudspeaker, electret microphone and adjustable loudspeaker volume on the front. Microprocessor and DIP switch unit for addressing the participant addresses. Integrated electronic door opener function (3A) and additional relay contacts C, NC, NO with 10A. Timed door opener input and door open display. Compatible with power supply unit Art. 1210. Dimensions: 102x55x38mm.
