XBP24-DMWIT-250 Digi International, XBP24-DMWIT-250 Datasheet - Page 31

• Manufacturer Part Number: XBP24-DMWIT-250
• Description: XBEE-PRO MESH 2.4 EXTENDED
• Manufacturer: Digi International
• Series: XBEE-PRO™r

Specifications of XBP24-DMWIT-250

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: ISM
• Applications: General Purpose
• Power - Output: 18dBm
• Sensitivity: -100dBm
• Voltage - Supply: 2.8 V ~ 3.4 V
• Current - Receiving: 55mA
• Current - Transmitting: 250mA
• Data Interface: PCB, Through Hole
• Antenna Connector: On-Board, Wire Whip
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4542387

XBee/XBee‐PRO DigiMesh 2.4 RF Modules
Diagnostics
The following are useful in some applications when managing a sleeping router network:
Association Indication: The AI command can be used to query the synchronization status of a node in the network. The
following codes are defined:
Sleep Status: The SS command can be used to query information regarding the sleep status of the module. This com-
mand can be used to query if the node is currently acting as a network sleep coordinator.
If a network has multiple subnets that have drifted out of phase with each other, then follow the following steps to
get the subnets back in phase:
In the case where only a few nodes need to be replaced this method can also be used:
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change the sleep cycle settings of the network (increment ST for example).
Wait for the subnet's next wake cycle. During this cycle the node selected to change the sleep cycle parame-
ters will send the new settings to the entire subnet it is in range of, including the sleep support node which is
in range of the other subnet.
Wait for the out of sync subnet to wake up and send a sync. When the sleep support node receives this sync
it will reject it and send a sync to the subnet with the new sleep settings.
can be changed back to what they were.
cycle.
The out of sync node will receive a sync from the node which is synchronized to the network and sync to the
network sleep settings.
Place a sleep support node in range of both subnets.
Select a node in the subnet which you desire the other subnet to sync up with. Use this node to slightly
The subnets will now be in sync. The sleep support node can be removed. If desired the sleep cycle settings
Reset the out of sync node and set its sleep mode to cyclic sleep (SM=8). Set it up to have a short sleep
Place the node in range of a sleep support node or wake a sleeping node with the commissioning button.
Query current sleep cycle: The OS and OW command can be used to query the current operational sleep
and wake time a module is currently using.
0x00 - synchronized. The node has been recently synchronized or is acting as the sleep coordinator.
0x50 - poorly synchronized. The node has been synchronized in the past, but has not received a sync for
the last 3 to 6 sleep cycles.
0x51 - synchronization lost. The node has gone 6 or more cycles without receiving a sync message.
0x52 - never synchronized. The node has never received a sync message.
© 2010 Digi International, Inc.
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