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Networking methods
Use the SH and SL commands to read this address.
n
The form of the address is: 0x0013A2XXXXXXXXXX.
n
The first six digits are the Digi Organizationally Unique Identifier (OUI).
n
The broadcast address is 0x000000000000FFFF.
n
Make a unicast transmission
To transmit to a specific device in Transparent operating mode:
Set DH:DL to the SH:SL of the destination device.
n
To transmit to a specific device in API operating mode:
In the 64-bit destination address of the API frame, enter the SH:SL address of the destination
n
device.
Delivery methods
The
TO (Transmit Options)
Transparent mode. In API mode, the TxOptions field of the API frame overrides the TO command, if
non-zero.
The XTC RF Module supports three delivery methods:
Point-to-multipoint (TO = 0x40).
n
Repeater (directed broadcast) (TO = 0x80).
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DigiMesh (TO = 0xC0).
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Point to Point / Point to Multipoint (P2MP)
This delivery method does not use a network header, only the MAC header.
In P2MP, the sending devices always send all messages directly to the destination. Other nodes do not
repeat the packet. The sending device only delivers a P2MP unicast directly to the destination device,
which must be in range of the sending device.
The XTC RF Module uses patented technology that allows the destination device to receive unicast
transmissions directed to it, even when there is a large amount of traffic. This works best if you keep
broadcast transmissions to a minimum.
A sending node repeats a P2MP broadcast transmission MT+1 times, but the receiving nodes do not
repeat it, so like a unicast transmission, the receiving device must be in range.
All devices that receive a P2MP broadcast transmission output the data through the serial port.
Repeater/directed broadcast
All of the routers in a network receive and repeat directed broadcast transmissions. Because it does
not use ACKs, the originating node sends the broadcast multiple times. By default a broadcast
transmission is sent four times—the extra transmissions become automatic retries without
acknowledgments. This results in all nodes repeating the transmission four times. Sending frequent
broadcast transmissions can quickly reduce the available network bandwidth, so use broadcast
transmissions sparingly.
XBee®/XBee-PRO XTend Compatible (XTC) DigiMesh RF Module User Guide
command sets the default delivery method that the device uses when in
Make a unicast transmission
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