A24-HASM-450 Digi International/Maxstream, A24-HASM-450 Datasheet - Page 24

• Manufacturer Part Number: A24-HASM-450
• Description: ANT 2.4GHZ DIPOLE HALF-WAVE
• Manufacturer: Digi International/Maxstream
• Series: XPressr

Specifications of A24-HASM-450

• Antenna Type: Whip: 1/2 Wave, Swivel, Tilt (Right Angle)
• Number Of Bands: 1
• Frequency: 2.4GHz
• Vswr: 2
• Gain: 2.1dBi
• Termination: RP-SMA
• Mounting Type: Connector
• Height (max): 4.35" (110.5mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 70000340; Q2724499B

XBee/XBee‐PRO ZigBee OEM RF Modules v1.x1x [2007.06.01]
Coordinator Binding
Tx-Aggregation Binding
Tx-Explicit Binding
Command Binding
Received Data Bindings
In AT firmware, application-layer addressing must be enabled using the ZA command. When
application-layer addressing is enabled, the DE and SE commands specify the source and
destination endpoints, and the CI command sets the cluster ID that will be used in the
transmission.
In API firmware, the Explicit Addressing ZigBee Command frame (0x11) can be used to configure
the endpoint and cluster ID addressing parameters as needed. The destination device can indicate
application-layer addressing information if the Explicit Receive API frame is addressing information
using either the explicit receive indicator or the binding receive API frames. The receive RF data
frame is set using Binding Table Addressing
The XBee Series 2 modules maintain several entries in a binding table. The binding table contains a
destination 64-bit address, a type field, and endpoints for each transmission. Non-broadcast
transmissions make use of the binding table to specify the addressing values for the transmission.
Some entries in the binding table are reserved by MaxStream for special purposes. Binding table
entries can be accessed by setting the BI command to a valid index in AT firmware, or by using the
Binding Table API Command frame in the API firmware. The binding table entries are organized as
follows.
Table 4‐02.
The coordinator binding contains the 64-bit address of the coordinator. This table entry is
populated when the device joins the network.
This binding table entry contains the 64-bit address of the aggregate (sink) node if one exists.
Data can be sent to the aggregate node by addressing this index in the binding table.
The Tx-Explicit binding table entry contains the destination address and endpoint information from
the last explicit transmission that was issued. This entry is modified whenever explicit addressing
is used in either the AT or API firmware as described in the "XBee Series 2 Addressing" section.
If a remote command request is received, the command binding entry stores information from the
device that initiated the command. For example, if the ND or DN command is issued, this binding
table entry would contain the source address of the device that sent the ND command.
The received data bindings contain addressing information for the last three received data
packets. The fourth entry is marked invalid. When a data packet is received, the address and
endpoint information is stored into the invalid entry. Then, the oldest entry is made invalid. Thus,
once an entry is created in the Received Data binding indexes, it will remain valid until three more
RF data packets are received.
Binding Table Index
© 2007 Digi International, Inc.
3-4
5-8
0
1
2
9
Name
Coordinator Binding
Tx-Aggregation Binding
Tx-Explicit Binding
Command Binding
Received Data Bindings
User Bindings.
Access
Read-Write
Read-Only
Read-Write
Read-Only
Read-Only
Read-Write
Chapter 4 ‐ RF Module Configuration
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