Bus technology with reverse polarity protection. All information is exchanged between the door station and the telephone via two lines. The wiring can be done with up to two risers, so that inspection and maintenance work on one riser does not affect the rest of the system. Up to 8 different ring tones, both for the door call and for the floor callProduct features:Bus power supply unitincl. TÖ transformer and relay for staircase light timer (pulse) LED function control for each riser Short-circuit proof max. 50 devices with 2 risersTechnical data:Compatible with BiBus systemfor DIN rail mounting Width: 12 sub-units (216 mm) Supply voltage: 230 V (AC) Installation instructions:Note:
