Network configurations Addressing
XBee®-PRO 900HP/XSC RF Modules
231
Definition
In Peer-to-peer networks, devices remain synchronized without the use of master/slave
dependencies. Each device shares the roles of master and slave. Digi's peer-to-peer architecture
features fast synch times (35 ms to synchronize devices) and fast cold start times (50 ms before
transmission).
Sample network profile (Broadcast communications)
Note Assume default values for all parameters that are not in this list. These profiles do not reflect
addressing implementations.
Use default values for all devices.
Sample network profile (Acknowledged communications)
Note Assume default values for all parameters that are not in this list. These profiles do not reflect
addressing implementations.
All devices:
1. Send MY 0 to set the source address to 0x00.
2. Send DT FFFF to set the destination address to 0xFFFF.
3. Send RR 3 to set the number of retries to 3.
Basic RF modes
Streaming.
Acknowledged RF mode
Acknowledged.
Addressing
Each RF packet contains addressing information that the receiving devices use to filter incoming RF
data. Receiving devices inspect the Preamble ID (HP parameter), Vendor Identification Number (ID
parameter) and Destination Address (DT parameter) in each RF packet. A receiving device discards all
data that does not pass through all three network security layers.
The following image illustrates the addressing layers in the RF packet header.
To Next Page
Loading...
Need help?
General
