2-channel isolated barrier, 24 V DC supply (bus powered), Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources, Output 4 mA ... 20 mA, current source, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Housing width: 18 mm, Number of channels: 2-channel, HART communication, Safety Integrity Level (SIL): SIL 2, Systematic capability (SC): SC 3, Rated voltage: 18 ... 30 V DC bus powered via Termination Board, Field device: 2-wire transmitter, Field device [2]: 3-wire transmitter