XBP09-XC009-DK Digi International, XBP09-XC009-DK Datasheet - Page 13

• Manufacturer Part Number: XBP09-XC009-DK
• Description: KIT STARTER XBEE PRO 900MHZ
• Manufacturer: Digi International
• Series: XBEE-PRO™r
• Type: Transceiver, XBeePror

Specifications of XBP09-XC009-DK

• Frequency: 900MHz
• Wireless Frequency: 900 MHz
• Operating Voltage: 3.3 V
• Output Power: 100 mW
• Antenna: U.FL, RPSMA, Whip
• Operating Temperature Range: - 40 C to + 85 C
• For Use With/related Products: Xbee-PRO Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 602-1133; Q4227731; XBP09-XC009-DK

XBee‐PRO® XSC OEM RF Modules
RF Packet
Figure 2‐06. RF Packet Components
* When streaming multiple RF packets, the RF Initializer is only sent in front of the first packet.
RF Initializer
An RF initializer is sent each time a new connection sequence begins. The RF initializer contains
channel information that notifies receiving modules of information such as the hopping pattern
used by the transmitting module. The first transmission always sends an RF initializer.
An RF initializer can be of various lengths depending on the amount of time determined to be
required to prepare a receiving module. For example, a wake-up initializer is a type of RF initializer
used to wake remote modules from Sleep Mode (Refer to the FH, LH, HT and SM Commands for
more information). The length of the wake-up initializer should be longer than the length of time
remote modules are in cyclic sleep.
Header
The header contains network addressing information that filters incoming RF data. The receiving
module checks for a matching VID, Hopping Channel and Destination Address. Data that does not
pass through all three network filter layers is discarded.
Figure 2‐07. Addressing Layers contained in the Header
CRC (Cyclic Redundancy Check)
To verify data integrity and provide built-in error checking, a 16-bit CRC (Cyclic Redundancy
Check) is computed for the transmitted data and attached to the end of each RF packet. On the
receiving end, the receiving module computes the CRC on all incoming RF data. Received data that
has an invalid CRC is discarded [See Receive Mode section, next page].
© 2008 Digi International, Inc.
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