Bus 2- or 4-channel switch for standalone installation or installation in E-Design55 switch system. 80x80 mm, 15 mm high. For connection to switch gateways FTS14TG. Standby loss is only 0.2 watts. Comes with a rocker and double rocker. Smart Home sensor. Included in the package are a mounting plate, a mounting frame with integrated electronics, a frame, a rocker, and a double rocker. The double rocker can input 4 evaluable signals, while the single rocker can input only 2 signals. A 20 cm long bus cable is provided in red and black at the back. Red connects to BP, black to BN of a switch gateway FTS14TG. Up to 30 bus switches and/or bus switch couplers FTS61BTK can be connected to the terminals BP and BN of a switch gateway FTS14TG. The maximum total cable length is 200 m. The RLC element included with the FTS14TG must be additionally connected to the terminals BP and BN at the farthest bus switch or bus switch coupler. The connected B4 is powered via the 2-wire switch bus with 29 V DC while simultaneously transmitting data. Please use only standard bus or telephone cables. Confirmation telegrams from actuators are indicated by 4 or 2 yellow LEDs when the IDs of the actuators are entered into the ID table of the FTS14TG with PCT14. The sleeves present in the switch box are used for screw mounting over a 55 mm switch box.