Foxboro I/A Series FBM211 RH914TN 0 to 20 mA Input Interface ModuleOVERVIEW: The FBM211, 0 to 20 mA Input Interface Module, contains sixteen 20 mA dc analog input channels, each channel accepting a 2 wire analog sensor input such as a 4 to 20 mA transmitter or a self powered 20 mA source. The input channels are galvanically isolated from ground and module logic. The module performs the signal conversion required to interface the electrical input signals from the field sensors to the redundant module Fieldbus.