9602-LP User Guide Version A
Document Number: 451-92750-001A
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Figure 9: Normal Tracking “Callable (Yes)” Option
During Normal Tracking and
Callable
is set to
No
, the 9602-LP automatically transmits GPS
reports at a preset interval ranging from continuous to one report every seven days. All
internal circuits of the 9602-LP are turned OFF in between reports, including the GPS
receiver, GPS antenna’s LNA, Iridium RF board, DC-DC converters, and serial interfaces. The
only active components are the microcontroller and the motion sensor. The 9602-LP draws
the lowest current in between reports of around 60 μA at 5 VDC. The 9602-LP will not
respond to any entered commands, including the +++. The +++ command works only
while the tracker is waiting for GPS acquisition or is transmitting a report. An updated
operating profile sent to the 9602-LP from a command center remains at the Iridium
gateway until the 9602-LP wakes up and retrieves it. Any of the four input pins (S0 through
S3) on the multi-interface connector (DB-15 connector) can be selected to trigger
immediate transmission of GPS report(s) when a rising edge or a falling edge of a
TTL/CMOS input signal is detected. Once the last GPS report is sent, the 9602-LP goes back
to Normal Tracking.