System Planning Corporation GTLITEV3 Manuale Utente

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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 
 
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