Digi XBee User Manual

© 2014 Digi International Inc. 36
XBee/XBee-PRO
®
DigiMesh 2.4 User Manual
Associate LED
The Associate pin (pin 15) provides indication of the device's sleep status and diagnostic
information. To take advantage of these indications, connect an LED to the Associate pin as
shown in the figure above. The Associate LED functionality is enabled by setting the D5
command to 1 (enabled by default). If enabled, the Associate pin is configured as an output and
will behave as described in the following sections.
The Associate pin indicates the synchronization status of a sleep compatible node. On a non-
sleep compatible node, the pin functions as a power indicator. The following table describes this
functionality.
The LT command is used to override the blink rate of the Associate pin. When set to 0, the
device uses the default blink time (500ms for sleep coordinator, 250ms otherwise).
Diagnostics Support
The Associate pin works with the commissioning pushbutton to provide additional diagnostics
behaviors to aid in deploying and testing a network. If the commissioning push button is pressed
once the device transmits a broadcast node identification packet at the beginning of the next
wake cycle if sleep compatible, or immediately if not sleep compatible. If the Associate LED
functionality is enabled (D5 command), a device that receive this transmission will blink its
Associate pin rapidly for 1 second.
Sleep mode LED Status Meaning
0 On, blinking The device is powered and operating properly.
1, 4, 5 Off The device is in a low power mode.
1, 4, 5 On, blinking
The device is powered, awake and is operating
properly.
7 On, solid
The network is asleep or the device has not
synchronized with the network or has lost
synchronization with the network.
7, 8
On, slow blinking (500 ms
blink time)
The device is acting as the network sleep
coordinator and is operating properly.
7, 8
On, fast blinking (250 ms
blink time)
The device is properly synchronized with the
network.
8 Off The device is in a low power mode.
8 On, solid
The device has not synchronized or has lost
synchronization with the network.

Digi XBee Specifications

General

Operating Frequency	2.4 GHz
RF Data Rate	250 kbps
Model	XBee S2C
Category	Control Unit
Operating Voltage	2.1 to 3.6V DC
Operating Temperature	-40 to +85 °C
Interface	UART
Dimensions	24.38 x 27.61 x 9.14 mm