Eltako pulse relay with 4 channels, each with 1 normally open contact 4A/250V AC, incandescent lamps up to 1000W, isolated from the supply voltage, featuring DX technology. Bidirectional. Standby loss is only 0.1 watts. Connection to the Eltako RS485 bus. Cross-wiring of bus and power supply with a jumper. Simply connect the neutral conductor to the terminal (N) and the live wire to K(L). This results in an additional standby loss of only 0.1 watts. When all 4 relays of the FSR14-4x are activated, 0.7 watts are required. In the event of a power failure, it will be turned off definitively. The channels can be programmed independently as ES and/or ER channels. Scene control: With one of the four control signals from a button programmed as a scene button with a double rocker, multiple channels of one or more FSR14-4x can be turned on or off as a single scene. Central commands from a PC are sent using the building radio visualization and control software GFVS. To do this, one or more FSR14-4x must be programmed on the PC. The rotary switches are used to program the buttons and, if necessary, test the 4 channels. The LED under the upper rotary switch accompanies the programming process according to the operating instructions and indicates control commands during operation.