AS-Interface card LEDs

Table: AS-Interface card LEDs
LED correct operating condition Fault indication Possible causes and corrective action
Power-On (green) Off System power is not supplied to the card due to a possible line power problem. 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.
Address conflict. Replace card with known good card of same type; contact technical support.
Port 1 and Port 2-On (yellow) Off No communications. Check connections, cable, and external devices.
Yellow (flashing) Communications error on this port. Check connections, cable, and external devices.