Call generator for 4 WE, 1 TCS:BUS protocol can be taught per channel, module is powered via TCS:BUS, 3-wire technology (looping possible), can be used multiple times on one floor, programming mode can be switched on directly on the device, operating mode is displayed by yellow LED, call differentiation, EB plastic housing with painted circuit board, internal ISP connection for software updates, supply voltage: 26 V DC 8%, housing: EB plastic, dimensions: width 50 mm x height 50 mm x depth 22 mm, permissible ambient temperature: -20 °C to 50 °C, length of floor button connection <20m, supply power 2mA