GUARDTRAX USER & OPERATING MANUAL
NovaTracker 11 Commerce Dr Cranford, NJ 07016 908 272 0114
Doc No: GT-400-003-02DoD
4
3 DETAILED OPERATION
The GuardTrax unit is compatible with the GSM/GPRS voice and data cellular network
and is capable of receiving GPS time and location information. The unit operates on a
time, motion and key entry event driven basis. Compressed data and optionally,
encrypted data is sent, via the GPRS network, to a pre-determined IP addressed, or
alternatively a URL-addressed server. Messages are transmitted in response to time,
motion, and server or key entered events.
3.1 Basic operation
9If the unit detects motion, (i.e. vibration or rocking, or walking) it will transmit a
time event message at regular, programmable intervals.
9While the unit is in-motion, it is fully functional and will actively receive GPS
information. Additionally, it will respond to key presses, transmit messages or
receive commands over the GSM/GPRS network and receive in-coming and
initiate out-going voice calls.
9If no motion is detected during a user programmable period, the unit will send out
a non-motion message and enter a low power non-Motion-sleep mode. While in
non-Motion-sleep, if moved, the unit will wake-up and continue normal operation.
9Additionally, the GuardTrax can enter a very low power Forced-sleep mode. This
mode can be user initiated, by key entry, or automatically when the unit detects a
low battery condition.
If the unit is in non-Motion-sleep, then shake or move it to initiate a Wake-up sequence.
Refer to the GuardTrax Power-Up Sequence for a description of the power up sequence.
If the unit is in Forced-sleep, resulting from a previous key entry sequence, press and
hold any single key to initiate a Wake-up sequence. If the Forced-sleep is the result of a
low battery condition, either replace or fully re-charge the unit’s battery to return to full
operation.
In some instances, if the unit is not recharging, this may be
caused by a faulty battery. In order to remedy this, insert only
the battery into the optional battery charger. If the battery
begins charging (within five (5) minutes), re-insert the battery
back into the unit and return the unit back to its charging
cradle until fully charged. If charging does not resume, call
NovaTracker Customer support.
