Weidmüller RSM-16DI 48VDC S is a Interface module with relais, RSS, Screw connection, Plug-in connector in acc. with IEC60603-13 / DIN41651, 20-pole plug, 48 V DC ± 10%, 10 mA, 1-wire. Interface module with relais, RSS, Screw connection, Plug-in connector in acc. with IEC60603-13 / DIN41651, 20-pole plug, 48 V DC ± 10%, 10 mA, 1-wire