The 51304362-100 is a Low Level Analog Input Multiplexer (LLMux) IOP module used in Honeywell TPS (TotalPlant Solution) systems, handling low-level analog signals.
The 51305508-200 is an XLCNE2 MM CE Certified Medium Distance Board module used in Honeywell TPS systems, enabling medium-distance communication for the LCN.
The 51305890-175 is a conformally coated LLMUX2 TC Field Terminal Assembly (FTA) for Honeywell Experion PKS systems, handling thermocouple low-level analog signals.