XC09-009-DK Digi International/Maxstream, XC09-009-DK Datasheet - Page 29

• Manufacturer Part Number: XC09-009-DK
• Description: KIT DEV FOR 900MHZ 9600BPS 1MW
• Manufacturer: Digi International/Maxstream
• Series: XCite™r
• Type: Transceiverr

Specifications of XC09-009-DK

• Frequency: 900MHz
• For Use With/related Products: XCite Module (900 MHz, 9600 bps) US and Canada
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

9XCite™ OEM RF Module – Product Manual v2.1 [2007.01.04]
4. Advanced Networking
4.1. Addressing
4.1.1. Vendor Identification Number (ATID)
XCite radio modems utilize three layers of addressing to communicate between radio modems.
The network layers are depicted below. Only radio modems with the matching addresses are able
to communicate. The main layers of XCite Networking and Addressing are:
Figure 4‐01. Addressing layers contained in the RF packet header
Each network layer provides a separate layer of filtration. The Vendor Identification Number (VID)
provides the first layer of filtration through the ID (Modem ID) Parameter. If the incoming RF data
carries a matching VID number, the data continues through to the subsequent Channel and Desti-
nation Address layers. The Destination Address is the last network layer and provides the most
granular form of filtration. If at any point during the incoming RF data flow the numbers in ques-
tion do not match, the data is discarded.
XCite Modules and RF Modems are built around a peer-to-peer protocol that inherently supports a
multidrop type network (similar to RS-485). In their default state, any XCite radio modem will
communicate with any other XCite radio modem in its default state.
The bottom half of the ID (Vendor Identification Number) Parameter range is user-settable. The
upper half of the range is factory-set and read-only. The value of the ID Command is called the
Vendor Identification Number (VID). A unique VID is available upon special request. The VID is
programmed to the XCite Module at the factory and is stored in the modem's permanent memory.
Only modems with matching VIDs can communicate with each other.
VID addressing ensures that radio modems ignore transmissions and receptions of XCite Radio
Modems having a different VID in the same vicinity. To request a unique VID, contact MaxStream
to obtain the VID Request Form.
© 2007 MaxStream, Inc.
• Vendor Identification Number (ATID)
• Channel (ATHP)
• Destination Address (ATDT)
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