XB24-BPDK Digi International/Maxstream, XB24-BPDK Datasheet - Page 23

• Manufacturer Part Number: XB24-BPDK
• Description: KIT DEVELOPMENT XBEE SERIES 2
• Manufacturer: Digi International/Maxstream
• Series: XBee™r
• Type: 802.15.4/Zigbeer

Specifications of XB24-BPDK

• Frequency: 2.4GHz
• For Use With/related Products: XBee™ Series 2 Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XBee ZNet 2.5/XBee‐PRO ZNet 2.5 ZigBee OEM RF Modules v1.x4x
3.4.3. Data Transmission and Routing
L eg en d
C = C o o rd in ato r
R = R o u ter
E = E n d D evice
Broadcast Transmissions
Figure 3‐05. ZigBee Layer‐Addressing Example
All data packets are addressed using both device and application layer addressing fields. Data can
be sent as a broadcast, or unicast transmission.
Broadcast transmissions within the ZigBee protocol are intended to be propagated throughout the
entire network such that all nodes receive the transmission. To accomplish this, all devices that
receive a broadcast transmission will retransmit the packet 3 times.
Figure 3‐06. Broadcast Data Transmission
Each node that transmits the broadcast will also create an entry in a local broadcast transmission
table. This entry is used to keep track of each received broadcast packet to ensure the packets are
© 2008 Digi International, Inc.
ZigBee Device A
Endpoint 1
Endpoint 2
Endpoint 3
(radio A)
E
E
Cluster ID = TurnLightOff
R
R
R
C
R
E
ZigBee Device B
Endpoint 40
Endpoint 41
Endpoint 42
(radio B)
R
R
E
E
E
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