Pepperl+Fuchs

The Pepperl+Fuchs HiD2900TOP is a versatile 2-channel terminal module designed for the pass-through of non-intrinsically safe signals between the control system and field devices. It mounts on a HiD Termination Board and supports universal signal types, accommodating both 0/4 ... 20 mA and 0 ... 5 V signals. Each channel can be independently configured via DIP switches for either signal pass-through or signal conversion. The module features a built-in 250 Ω resistor that can be enabled through the DIP switches, allowing the conversion of a 0/4 ... 20 mA signal to a 0 ... 5 V or 1 ... 5 V signal for control side compatibility

The Pepperl+Fuchs KFD2-SR2-EX1.W.LB is a single-channel isolated barrier (switch amplifier) designed by Pepperl+Fuchs. Its core function is to isolate and convert signals from NAMUR sensors or dry contacts located in hazardous areas (such as environments with flammable gases or dusts) into relay contact outputs for safe-area control systems. It also provides line fault detection (LFD) functionality to ensure the integrity of intrinsically safe explosion protection systems.