The IB-G has been developed with all of the functionality of the following IB Series Interface Boards including quick response versions: IB 1, IB 2, IB 3, IB 6 and IB ESX. All of these options are configurable on the IB-G. The IB-G can accept 4-20 milliamp or 0-10 volt DC analog input signals and is designed to allow externally supplied control signals to control one or two Sporlan step motor valves including CDS evaporator control valves, SDR electric discharge bypass valves, and SEI/SER/SEH/SEV/ESX* electric expansion valves. Enhanced features include LED indicators for power and valve position, option for 400 pulses per second (pps), and a valve open or close feature.