GAT-Pro User Manual
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TTW-GAT-Pro-UM002
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3.7. Device Status LED
Table 5.
Definition of Device status and LED
LED
Device status
LED status
GSM
(Green)
Device is searching GSM network.
Fast flashing
(Note1)
Device has registered to GSM network.
Slow flashing
(Note2)
SIM card needs pin code to unlock.
ON
GPS
(Blue)
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
(Red)
Battery voltage is lower than 0%.
OFF
Battery voltage is below 10%.
Slow flashing
Battery voltage is more than 10%.
ON
1 - Fast flashing is about 60ms ON/ 780ms OFF
2 - Slow flashing is about 60ms ON/ 1940ms OFF
Note:
1. In Battery mode, all LEDs are only enabled at the first 5 minutes after power on the device, and then will be
shut down all the time.
