The receiver module consists of three fiber optic receivers and one fiber optic transmitter. The supply voltage of 5-24VDC and the signal lines can either be supplied via a D-Sub connector or via screw terminals. The average current consumption varies between 50 and 180mA depending on the supply voltage.For the adapter cable connection, a 9-pin D-Sub connector is installed, which is connected to the customer's counter module via the separately available adapter cable. The output signals are voltage difference signals (corresponding to RS422).