Analog I/O option module compatible with PowerLogic PM2x30 devices that provides additional analog inputs and outputs. 2 analog inputs (4-20 mA). 2 analog outputs (4-20 mA) for currents, voltages, power, power factor. Analog inputs and outputs are set up and configured using the ION setup software. The option modules are mounted on the back of the meter and are used to connect the control voltage and the interface bus. PowerLogic PM2x30 devices allow a maximum of 1 input/output option module per meter.