2-channel isolated barrier, 24 V DC supply (Power Rail), Input 2-wire SMART transmitters, Output 0/4 mA ... 20 mA, Terminals with test points, Up to SIL 2 acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 2-channel, HART communication, Test sockets, Safety Integrity Level (SIL): SIL 2, Rated voltage: 20 ... 35 V DC, Field device: 2-wire transmitter, Signal: 0/4 ... 20 mA, Signal: 2 x 0/4 ... 20 mA (current source)