GE Field Control IC670MDL643 e 5/12 VDC Positive/Negative Input Module. GE Field Control IC670MDL643 provides 16 discrete inputs arranged in 2 groups of 8. GE Field Control IC670MDL643 has 16 bits (two bytes) of discrete input data.
The module receives power from the Bus Interface Unit to run its own 5-volt logic. An external 5VDC or 12VDC supply is needed to power the input devices.
LEDs
Individual LEDs (logic side), visible through the transparent portion of the module top, indicate the on/off status of each input. The PWR LED is on when field and backplane power are present.