Microprocessed unit that manages communications and control for 8 voltage-free inputs. It allows to customize each entry with the location of the equipment it controls and its status change (valve opened in garage, ...). Each input can be selected by open contact (SELECTOR IN NO POSITION) or contact closed (SELECTOR IN NC POSITION). Provided with information leds, extractable terminals and circuit protection box. Supply voltage: 18 - 27 VDC. Consumption at rest: 3.5 mA. Inputs: Voltage free contacts. Selectable by open or closed contact. Temperature range: 0º to 60º C. Cable cross section: Positive: 1.5 mm². Negative: 1.5 mm². Communications: 0.75 mm². Dimensions: 145 x 86 x 25 mm. LED: Activation of each input: fixed yellow. Communications: flashing red. Clamping: 4 holes Ø3.5 mm.