Work with networked devices Test links between adjacent devices
XBee®/XBee-PRO SX RF Module User Guide
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NACK messages
Transmit Request (0x10 and 0x11) frames contain a negative-acknowledge character (NACK) API
option (Bit 2 of the Transmit Options field).
If you use this option when transmitting data, when a MAC acknowledgment failure occurs on one of
the hops to the destination device, the device generates a Route Information Packet (0x8D) frame
and sends it to the originator of the unicast.
This information is useful because it allows you to identify and repair marginal links.
The Commissioning Pushbutton
The XBee/XBee-PRO SX RF Module supports a set of commissioning and LED functions to help you
deploy and commission devices. These functions include the Commissioning Pushbutton definitions
and the associated LED functions. The following diagram shows how the hardware can support these
features.
To support the Commissioning Pushbutton and its associated LED functions, connect a pushbutton
and an LED to device pins 33 and 28 respectively.
Definitions
To enable the Commissioning Pushbutton functionality on pin 33, set the D0 command to 1. The
functionality is enabled by default.
You must perform multiple button presses within two seconds.
The following table provides the pushbutton definitions.
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