© 2014 Digi International Inc. 33
XBee/XBee-PRO
®
DigiMesh 2.4 User Manual
Trace Route example
NACK Messages
The NACK API option of Tx Request Packets (see the API section of this manual for a description
of the API frames) provides the option to have a Route Information packet generated and sent
to the originator of a unicast when a MAC acknowledgment failure occurs on one of the hops to
the destination. This information is useful because it allows marginal links to be identified and
repaired.
XBee Commissioning Pushbutton and Associate LED
The XBee modules support a set of commissioning and LED behaviors to aid in device
deployment and commissioning. These include the commissioning push button definitions and
associate LED behaviors. These features can be supported in hardware as shown below.