The 900A01-0102 is an 8-channel universal analog input module for Honeywell ControlEdge HC900 systems, supporting TC, RTD, voltage, current and other input types.
The 900B08-0101 is an 8-channel analog output module (group-isolated) for Honeywell ControlEdge HC900 systems, supporting 0-21.0 mA outputs and optional internal/external power.