Technical data

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6: Respond messages
This chapter shows you how to read and understand the different response messages sent from GC-101. When GC-101 is in
GPRS/SMS mode it will upload the data to the assigned URL first. However, if GPRS service is not available, it will send the SMS
to the predefined phone number instead. In the case of GPRS-only mode, GC-101 will only send the data by GPRS no matter
there is GPRS service or not. Basically, there’re 7 different situations that trigger the GC-101 to response its position (Auto Report,
Polling, Emergency, Low Power) and are shown in the following pages.
Event Table:
This event table helps you to know what event triggers the response.
Event Descriptions
Auto
When the monitor sends a valid Auto Report command to GC-101, it will send a report including an “Auto”
behind each GPRMC sentence.
SOS
When the user presses the Panic button, it will send the report including an “SOS” event behind each
GPRMC sentence. No configuration is allowed in SOS mode. The SOS mode will only be released by special
commands (Master Reset and Off Panic) and switching it off/on.
LP
When GC-101 detects its battery ‘s voltage is lower than certain level, it will send a message to the 1
st
predefined number. The event is “LP” that means low power. When receive this message, please recharge
the device.
POLL When using the SMS to poll the report, the event will be “poll”.
GFIN Send data when device entering the Geofence area.
GOUT Send data when device exiting the Geofence area.