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GPS
30
GPS
This autonomous GPS feature enables the terminal to send location reports.
Not only can the reports be sent to meet customer requirements, but they can also be triggered by
events occurring through terminal us, such as emergency call initiation and power on/off and so
forth.
The GPS menus define the parameters that are used by and when these events (such as selecting
DMO) are triggered.
Other situations are:
•
On Request.
•
Specific events.
•
Triggered after a time interval.
•
Triggered at specific distance intervals.
The reports are sent using a proprietary protocol, via the SDS transport layer, that also flags error
conditions.
The user's involvement with the operation of this feature is minimal, although the terminal does
provide indications of the operational status of the GPS feature.
The GPS feature can be enabled/disabled via the CPS and its event times/responses can be
configured in the GPS menu options. Configuration can also be done 'Over the Air' and this new
information will overwrite the CPS configuration.
All data requests and configuration commands received over the air are authenticated by checking
the ISSI of the sender of the source file, if the ISSI is wrong, the file will be rejected.
Note: Under the worst possible scenario of non emergency use, this feature will drain the battery by
up to 10%.
March 2009
Chapter 3 - MTP850 Ex/MTP810 Ex Product Information Manual
3-143
6866588D21-D
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