User's Manual

GlobalTrak ™ GT Lite Operation and Maintenance Manual
Figure XXXXXXXXX
13. Press Send to send the file
14. After transfer is complete, cycle power on the GT Lite
15. Clear the flash data by typing the following command:
AT+WOPEN=3 <enter>
16. Start the application by typing the following command:
AT+WOPEN=1 <enter>
17. Power off the GT Lite.
18. Move the jumper on J29 to the operating position as shown in Figure XXXXXXXX above.
19. Close the GT Lite enclosure by replacing the four case screws.
Programming over USB
Programming the main processor over USB allows the user to locally program the device
without opening it. Only devices with software version 2.20 or higher are able to be
programmed in this fashion.
Programming over USB uses a local command to initiate an Over-the-Air code download, so a
GPRS connection is required. In areas with very weak or no GPRS, this method of loading
code will fail.
1. Connect to GT Lite over USB and power on (see Section 4).
2. Wait until GT Lite is registered over GPRS. This is indicated by the following line (for more
information, see Section 5):
GPRS: GPRS has successfully connected!
3. Enter the following command into HyperTerminal replacing the marked parameters:
AT+OTAU="[FTP Address and path]/[Filename],[Username],[Password]" <enter>
[FTP Address and Path]: FTP address and path to folder in which GT Lite code is
located.
Prepared: R. Straz Date: July 25, 2007 Page 46 of
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