1-channel isolated barrier, 24 V DC supply (Power Rail), Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources, Output 4 mA ... 20 mA current sink/current source, Terminals with test points, Up to SIL 2 acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 1-channel, HART communication, Test sockets, Safety Integrity Level (SIL): SIL 2, Rated voltage: 18 ... 30 V DC, Field device: 2-wire transmitter, Field device [2]: 3-wire transmitter, Field device [3]: current source