Communication equipment that performs the function of distributing and amplifying the control bus signal to 4 outputs of the C2200 subcenter, in the facilities that require it (up to 3 in cascade), increasing the bus distance by 600 m from the control module to the distributor / amplifier and 600 m from the expander / distributor module to the subcentral. 12 Vdc power supply (25 mA). Led indicators for diagnosis during start-up. Connection via plug-in strips (for 1.5 mm2 cable). Dimensions: 105.5 x 101 x 24 mm, anchoring by DIN rail (35 mm symmetrical). Weight 121.6 g. Temperature range -10 to 55 ºC, relative humidity without condensation <93%.