GMT100 User Manual
TRACGMT100UM001
-12 -
Table
: Definition of Device status and LED
Note:
1 - GSM LED cannot be configured.
2 - GPS LED and PWR LED can be configured to turn off after a period of time using the
configuration tool
3 - Fast flashing is about 60ms ON/ 780ms OFF
4 - Slow flashing is about 60ms ON/ 1940ms OFF
LED
Device status
LED status
GSM
(note1)
Device is searching GSM network
Fast flashing
(Note3)
Device has registered to GSM network.
Slow flashing
(Note4)
SIM card needs pin code to unlock.
ON
GPS
(note 2)
GPS chip is powered off
OFF
GPS sends no data or data format error.
Slow flashing
GPS chip is searching GPS info.
Fast flashing
GPS chip has gotten GPS info.
ON
PWR
(note 2)
No external power and b ackup battery volt age is
lower than 3.35V.
OFF
No external power and b ackup battery volt age is
below 3.5V.
Slow flashing
External power in and backup battery is charging Fast flashing
External po wer in and backup ba ttery is fully
charged
ON
