XBee®/XBee‐PRO® ZB SMT RF Modules
Security
Security Commands
AT
Name and Description
Command
Parameter Range
Default
0 - Encryption disabled
1 - Encryption enabled
EE
EO
Encryption Enable. Set/Read the encryption enable setting.
0
Encryption Options. Configure options for encryption. Unused option bits should be set
to 0. Options include:
0x01 - Send the security key unsecured over-the-air during joins
0x02 - Use trust center (coordinator only
0 - 0xFF
Network Encryption Key. Set the 128-bit AES network encryption key. This command
is write-only; NK cannot be read. If set to 0 (default), the module will select a random
network key.
NK
128-bit value
128-bit value
0
0
Link Key. Set the 128-bit AES link key. This command is write only; KY cannot be read.
Setting KY to 0 will cause the coordinator to transmit the network key in the clear to
joining devices, and will cause joining devices to acquire the network key in the clear
when joining.
KY
RF Interfacing
RF Interfacing Commands
AT
Command
Name and Description
Parameter Range
Default
XBee
(boost mode disabled)
0 = -5 dBm
1 = -1 dBm
2 = +1 dBm
3 = +3 dBm
4 = +5 dBm
Power Level. Select/Read the power level at which the RF module transmits conducted
power. For XBee-PRO (S2B) Power Level 4 is calibrated and the other power levels are
approximate. Calibration occurs every 15 seconds based on radio characteristics
determined at manufacturing time, the ambient temperature, and how far off the voltage
is from the typical 3.3 V. If the input voltage is too high, the module will reset.
For the regular XBee, when operating on channel 26, no PL/PM selection will allow
greater than +3 dBm output.
PL
4
XBee-PRO
(Boost mode enabled)
4 =+18 dBM
3 = +16 dBm (approx.)
2 = +14 dBm (approx.)
1 = +12 dBm (approx.)
0 = 0 dBm (approx.)
Power Mode (XBee only). Set/read the power mode of the device. Enabling boost mode
0-1,
will improve the receive sensitivity by 2dB and increase the transmit power by 3dB
0= -Boost mode disabled,
1= Boost mode enabled.
PM
1
Note:This command is disabled on the XBee-PRO. It is forced on by the software to
provide the extra sensitivity. Boost mode imposes a slight increase in current draw. See
section 1.2 for details.
0 - 0xFF
Observed range for
Received Signal Strength. This command reports the received signal strength of the
last received RF data packet or APS acknowledgment. The DB command only indicates
the signal strength of the last hop. It does not provide an accurate quality measurement XBee-PRO:
DB
PP
for a multihop link. DB can be set to 0 to clear it. The DB command value is measured in
-dBm. For example if DB returns 0x50, then the RSSI of the last packet received was
-80dBm.
0x1A - 0x58
For XBee:
0x 1A - 0x5C
Peak Power. Read the dBm output when maximum power is selected (PL4).
0x0-0x12
[read only]
© 2010 Digi International, Inc.
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DCD [ DIGITAL CORE DESIGN ]
