XB24-BUIT-004 Digi International/Maxstream, XB24-BUIT-004 Datasheet - Page 28

• Manufacturer Part Number: XB24-BUIT-004
• Description: MODULE 802.15.4 SER 2 U.FL CONN
• Manufacturer: Digi International/Maxstream
• Series: XBee™r

Specifications of XB24-BUIT-004

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: Home/Building Automation, Industrial Control, ZigBee™
• Power - Output: 2 mW (3 dBm)
• Sensitivity: -96dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 38mA
• Current - Transmitting: 35mA
• Data Interface: PCB, Through Hole
• Antenna Connector: U.FL
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -

4. XBee ZNet 2.5 Networks
4.1. XBee ZNet 2.5 Network Formation
4.1.1. Starting an XBee ZNet 2.5 Coordinator
Example
The XBee ZNet 2.5 modules are based off the EmberZNet 2.5.x software stack. This stack is
similar in many instances to the ZigBee 2006 standard, but includes added features that are
necessary to maintain a robust mesh network.
This chapter details how to configure the module networking, security, and addressing parameters
to create operational mesh networks.
To create a ZigBee network, a coordinator must be started on a channel and PAN ID. Once the
coordinator has started, routers and end device can join the network. Network formation is
governed by the SC (Scan Channels), ID (PAN ID), SD (Scan Duration), and NJ (Node Join Time)
commands. The SC and ID settings should be written using the WR command to preserve network
formation or joining information.
In order to form a network, a coordinator must select an unused operating channel and PAN ID.
The XBee ZNet 2.5 modules support user-settable commands to control the process of selecting a
channel and PAN.
Table 4‐02. Commands that affect coordinator channel and PAN ID selection. See the command table for
If a coordinator has not already selected an operating PAN ID and channel, it uses the ID, SC, and
SD parameter values to perform an energy scan and a PAN scan (see section 3.1.2). After
completing these scans, the coordinator selects a valid channel and PAN ID and starts the PAN. If
security is enabled (EE command), the coordinator will use the security key specified by KY.
If the coordinator is running API firmware, the API modem status "coordinator started" frame is
sent out the Uart when the coordinator has started. It will then allow routers and end devices to
join to it for a time based on the NJ parameter. The NJ parameter specifies the coordinator’s
permit-joining attribute value. (See section 3.1.4 and the command table for details.)
If the Associate LED function is enabled (D5 command), the Associate pin (pin 15) is configured in
an output high state if the coordinator has not started. Once the coordinator selects a PAN ID and
channel, the Associate pin toggles its output state 1x per second. (The toggle rate is settable
using the LT command. The default behavior (LT=0) for a coordinator is one blink per second.)
Once the coordinator has selected a channel and PAN ID, it will retain the channel and PAN ID
information through power cycle or reset events.
1. Set SC and ID to the desired scan channels and PAN ID values. (The default values should
suffice.)
2. If SC or ID is changed from the default, issue the WR command to write the new values.
3. The Associate LED, if enabled using the D5 (DIO5 Configuration) parameter, will start blinking
1x per second once the coordinator has started.
4. If API is enabled (AP parameter > 0): The API Modem Status “Coordinator Started” is sent out
the UART.
ID
SC
SD
© 2008 Digi International, Inc.
Command
details.
Used to specify the PAN ID. Setting the ID to 0xFFFF allows any PAN ID to be selected.
Selects a list of channels to scan for the energy and PAN scans.
Determines the duration of time to scan on each of the SC channels for the energy and PAN scans.
Description
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