8-channel DI card LEDs

The following table describes the LEDs on the 8-channel DI cards:

Table: 8-channel DI card LEDs
LED correct operating condition Fault indication Possible causes and corrective action
Power/Active-(green):
  • Continuous green for the active card
  • Flashing green for the standby card
Off System power is not supplied to the card. Check the power connections.
Internal fault. Contact technical support.
Error-Off Red (continuous) Controller is not scanning card. Check controller operation.
Card failed self-test. Contact technical support.
Red (flashing) Controller is not scanning card. Check controller operation.
Hardware error. Replace card with known good card of same type; contact technical support.
Channel 1 to Channel 8
  • On (yellow)=input>detection level.
  • Off=input<detection level
Refer to the card's specifications for the detection levels.