XBP09-DMDK Digi International, XBP09-DMDK Datasheet - Page 12

• Manufacturer Part Number: XBP09-DMDK
• Description: KIT STARTER PROMESH XBEE PRO
• Manufacturer: Digi International
• Series: XBEE-PRO™r
• Type: Transceiver, XBeePror

Specifications of XBP09-DMDK

• Frequency: 900MHz
• Wireless Frequency: 900 MHz
• Interface Type: RS-232, USB, UART
• Modulation: FHSS
• Security: 128 bit AES
• Operating Voltage: 3.3 V
• Output Power: 50 mW
• Antenna: RPSMA
• For Use With/related Products: Xbee-PRO Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 602-1130

XBee‐PRO® 900 OEM RF RF Modules
Idle Mode
Modes of Operation
Idle Mode
Transmit Mode
Receive Mode
New
Transmission
When not receiving or transmitting data, the RF module is in Idle Mode. During Idle Mode, the RF
module is also checking for valid RF data. The module shifts into the other modes of operation
under the following conditions:
When serial data is received and is ready for packetization, the RF module will exit Idle Mode and
attempt to transmit the data. The destination address determines which node(s) will receive the
data.
If a route is not known, route discovery will take place for the purpose of establishing a route to
the destination node. If a module with a matching network address is not discovered, the packet is
discarded. The data will be transmitted once a route is established. If route discovery fails to
establish a route, the packet will be discarded.
Transmit Mode Sequence
When data is transmitted from one node to another, a network-level acknowledgement is
transmitted back across the established route to the source node. This acknowledgement packet
indicates to the source node that the data packet was received by the destination node. If a
network acknowledgement is not received, the source node will re-transmit the data. See Data
Transmission and Routing in chapter 3 for more information.
If a valid RF packet is received, the data is transferred to the serial transmit buffer
© 2008 Digi International, Inc.
Data Discarded
• Transmit Mode (Serial data in the serial receive buffer is ready to be packetized)
• Receive Mode (Valid RF data is received through the antenna)
• Command Mode (Command Mode Sequence is issued)
Route Discovered?
Route Discovery
Route Known?
No
No
Transmission
Successful
Yes
Yes
Transmit Data
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