XBP24-PKI-001-RA Digi International/Maxstream, XBP24-PKI-001-RA Datasheet - Page 17
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XBP24-PKI-001-RA
Manufacturer Part Number
XBP24-PKI-001-RA
Description
MODULE 802.15.4 RS-232 ANT
Manufacturer
Digi International/Maxstream
Series
XBEE-PRO™r
Specifications of XBP24-PKI-001-RA
Frequency
2.4GHz
Data Rate - Maximum
250kbps
Modulation Or Protocol
802.15.4
Applications
Home/Building Automation, Industrial Control, ZigBee™
Power - Output
0dBm
Sensitivity
-92dBm
Voltage - Supply
2.8 V ~ 3.4 V
Current - Receiving
55mA
Data Interface
Connector, Female DB-9
Antenna Connector
RP-SMA
Operating Temperature
-40°C ~ 85°C
Package / Case
Module
Memory Size
-
Current - Transmitting
-
Other names
Q3255595
© 2008 Digi International, Inc.
XBee‐PRO PKG‐R® RS‐232 RF Modem – 802.15.4 ‐ Product Manual v1.xAx
3.4. Modes of Operation
3.4.1. Idle Mode
3.4.2. Transmit / Receive Modes
RF Data Packets
Direct and Indirect Transmission
XBee-PRO RF Modems operate in five modes.
Figure 3‐04. Modes of Operation
When not receiving or transmitting data, the RF modem is in Idle Mode. The modem shifts into the
other modes of operation under the following conditions:
Each transmitted data packet contains a Source Address and Destination Address field. The Source
Address matches the address of the transmitting modem as specified by the MY (Source Address)
parameter (if MY >= 0xFFFE), the SH (Serial Number High) parameter or the SL (Serial Number
Low) parameter. The <Destination Address> field is created from the DH (Destination Address
High) and DL (Destination Address Low) parameter values. The Source Address and/or Destination
Address fields will either contain a 16-bit short or long 64-bit long address.
The RF data packet structure follows the 802.15.4 specification.
[Refer to the XBee/XBee-PRO Addressing section for more information]
There are two methods to transmit data:
Indirect Transmissions can only occur on a Coordinator. Thus, if all nodes in a network are End
Devices, only Direct Transmissions will occur. Indirect Transmissions are useful to ensure packet
delivery to a sleeping node. The Coordinator currently is able to retain up to 2 indirect messages.
• Transmit Mode (Serial data is received in the DI Buffer)
• Receive Mode (Valid RF data is received through the antenna)
• Sleep Mode (Sleep Mode condition is met)
• Command Mode (Command Mode Sequence is issued)
• Direct Transmission - data is transmitted immediately to the Destination Address
• Indirect Transmission - A packet is retained for a period of time and is only transmitted after
the destination modem (Source Address = Destination Address) requests the data.
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