The Fixed Multifunction Input/Output Board (FMI/OB) contains four I/O modules with pluggable terminations and a PC-104 Interface for Interconnection of fixed and expansion I/O subsystems. The board also provides for electrical isolation to field devices, surge suppression, and LED indicators for Discrete I/O, CPU, and communication functions. The four I/O modules are fixed as follows:

• 16 Discrete Inputs
• 8 Discrete Outputs
• 8 Analog Inputs
• 4 High Speed Counters

Two on-board Field Power Supplies are provided: one for DI and HSC operation and one for AI operation. The output voltages are electrically isolated (500 Vdc) and are regulated at 24 V.