AT commands MAC/PHY commands
XBee®/XBee-PRO SX RF Module User Guide
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HP (Preamble ID)
The preamble ID for which the device communicates. Only devices with matching preamble IDs can
communicate with each other. Different preamble IDs minimize interference between multiple sets of
devices operating in the same vicinity. When receiving a packet, the device checks this before the
network ID, as it is encoded in the preamble, and the network ID is encoded in the MAC header.
Parameter range
0 - 9
Default
0
ID (Network ID)
Set or read the user network identifier.
Devices must have the same network identifier to communicate with each other.
Devices can only communicate with other devices that have the same network identifier and channel
configured.
When receiving a packet, the device check this after the preamble ID. If you are using Original
equipment manufacturer (OEM) network IDs, 0xFFFF uses the factory value.
Parameter range
0 - 0x7FFF
Default
0x7FFF
MT(Broadcast Multi-Transmits)
Set or read the number of additional MAC-level broadcast transmissions. All broadcast packets are
transmitted MT+1 times to ensure they are received.
Parameter range
0 - 5
Default
3
BR (RF Data Rate)
Sets and reads the device's RF data rate (the rate at which the device transmits and receives RF data
over-the-air).
DigiMesh and synchronized sleep are not supported when BR = 0. All devices on the network must
have the same BR value set in order to communicate. BR directly affects the range of the device. The
higher the RF data rate, the lower the receive sensitivity.
Parameter range
0 - 2