2-channel isolated barrier, 24 V DC supply (loop powered), Current limit 45 mA at 15 V DC, Test pulse immunity, Housing width 12.5 mm, Housing width: 12.5 mm, Number of channels: 2-channel, Rated voltage: loop powered, Type: logic input, Type [2]: field device supply, Test pulse immunity, Field device: 2 x Valve, Field device [2]: 2 x audible alarm, Field device [3]: 2 x visual alarm, Current: typ. 45 mA, Voltage: ? 15 V