User's Manual

GlobalTrak ™ GT Lite Operation and Maintenance Manual
GPS Cold Fix Timeout Time allotted for GPS cold fix
GPS Cold Fix Lockout Number of consecutive failed cold fix attempts before lockout
ZigBee Enable ZigBee Enable / Disable
GSM Timeout Time allotted for GSM registration
Assistance Mode Mode for using Assisted GPS
Always On Mode Enable Always on Mode enable/disable
GPS Mode Mode for using GPS
ZigBee Sensor Configuration Message
The sensor configuration message allows the user to configure the sensor parameters and
thresholds for the GT Lite. Below are the configurable parameters.
Parameter Description
Analog 5-X Low Threshold Low Thresholds for ZigBee analog sensors 5-X
Analog 5-X High Threshold High Thresholds for ZigBee analog sensors 5-X
Digital 6-X Enable Enable/Disables for ZigBee digital sensors 6-X
ZigBee Sensor Network Message
To control which ZigBee sensors connect to the GT Lite, the server sends a ZigBee Sensor
Network Message. Each ZigBee node has a unique identification number (EUID). The GT Lite
only pairs with EUID’s that are in its binding table. This message can add, delete, and clear
the list of EUID’s that is stored in the GT Lite.
The payload of the ZigBee Sensor Network Message contains a list of 64 bit EUID numbers for
the GT Lite to add or delete from the binding table.
User Command Message
Commands sent to control the GT Lite are sent using the User Command Message. The
Command data type defines the command. There is no payload data included in the User
Command Message. Below is the list of current user command messages.
Parameter Description
PING Ping the GT Lite to create an LM and transmit
POLL LOG Polls the GT Lite to transmit the log
CLEAR LOG Clears the GT Lite’s log
Software Upgrade Message
The Software Upgrade Message is a special SMS only message from the server to the device
that initiates a code upgrade. Upon receipt, the device checks the authentication code. If
correct, the device downloads the binary code from the ftp location indicated in the message.
Prepared: R. Straz Date: July 25, 2007 Page 41 of
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