User guide
ALEOS 4.3.4 Software Configuration User Guide
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ALEOS Supported GPS Report Protocols
• Remote Access Protocol (RAP)
RAP is a proprietary binary message format developed and maintained by
Sierra Wireless and used by many 3rd party applications. Because it is
designed and maintained by Sierra Wireless, RAP supports more ALEOS
features than other GPS protocols. It is a low-byte-usage protocol that can be
used to develop low cost AVL solutions.
The RAP messages are in hex and are referred to by their message ID.
Reports can include GPS data alone, as well as GPS data with the date and
time, radio frequency data, radio status information, and I/O state changes,
and power state changes. For an example, see GPS RAP Report Sequence
Example on page 196. For more information, contact your Sierra Wireless
Sales representative for information on how to obtain a copy of the RAP Pro-
tocol Guide.
• National Marine Electronics Association (NMEA
®
)
NMEA is an ASCII protocol used by many GPS tracking applications.
• Tr i mbl e
®
ASCII Interface Protocol (TAIP)
TAIP is a digital communication interface based on printable ASCII characters
over a serial data link. TAIP was designed specifically for vehicle tracking
applications but has become common in a number of other applications, such
as data terminals and portable computers, because of its ease of use.
• Xora
®
Protocol specific to Xora asset management and tracking applications
Before Configuring GPS
To decide what configuration you need for your AirLink device, there are some
fundamental considerations you should determine:
•Protocol—What is the GPS protocol used by your tracking application and
what type of reports will you need? (See GPS Report Type on page 191.)
• Dynamic IP Address—Does your device have a dynamic IP address and
you need to track the specific asset? (See Device ID in Local Reports on
page 203.) You can also associate your device with a dynamic DNS configu-
ration. (See Dynamic DNS on page 151.)
• Server locationand type of connection—Will you be using a local server, a
remote server, or both? Will you need a serial or local IP connection? (See
Figure 9-1 on page 187 for information.)
• Multiple GPS servers—Will you need to have GPS data sent to more than
one GPS server?