Pepperl+Fuchs LB3105A2 HART Transmitter Power Supply / Input Isolator

The Pepperl+Fuchs LB3105A2 is a 4-channel HART transmitter power supply and input isolator for the FieldConnex remote I/O system, feeding 2-wire transmitters and also accepting active signals from separately powered 3-wire and 4-wire field devices, with intrinsically safe (Ex ia) field-side inputs.

It detects open and short-circuit line faults per channel (configurable thresholds), supports HART communication with a 12-bit resolution and 100ms conversion time, draws 1.5W from a 12V DC backplane bus supply, occupies 2 backplane slots, and mounts in Zone 2/Class I Div. 2 or the safe area.