Digi XBee 3

Hardware Associate LED functionality
Digi XBee® 3 Cellular LTE Cat 1 AT&T Smart Modem User Guide
110
LED status
Blink
timing Meaning
Double blink
½second
The last TCP/UDP/SMS attempt failed. If the LED has this pattern,
you may need to check DI (Remote Manager Indicator) or CI
(Protocol/Connection Indication) for the cause of the error.
Note This pattern applies only to the Transparent mode. Other
transmission modes do not affect the Associate LED blink
pattern.
Standardsingleblink 1second Normal operation.
The normal association LED signal alternates evenly between high and low as shown below:
Where the low signal means LED off and the high signal means LED on.
When CI is not 0 or 0xFF, the Associate LED has a different blink pattern that looks like this: