Associate LED functionality

The following table describes the Associate LED functionality. For the location of the Associate LED on the XBIB-U development board, see number 6 on the XBIB-U-DEV reference.

LED status	Blink timing	Meaning
On, solid		Not joined to a mobile network.
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.

LED status

Blink timing

Meaning

On, solid

Not joined to a mobile network.

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: