T373A & T373B User Manual
2.5 Function Interface Definition
Description of function:
Index Description
1
OBD status indicator LED(Orange)
2
GPS status indicator LED(Green)
3
3G/WCDMA status indicator LED(Red)
4
Bluetooth status indicator LED(Blue or White)
5
GPS antenna(25mm*25mm)
6
Micro USIM card holder
7
Micro USB port
Definition of Device status LED:
LED
Device Status
LED Display
3G/WCDMA
(Red)
Module power off
100ms ON, 6s OFF
Searching Cell network
1s ON, 1s OFF
Registered to Cell network
500ms ON, 500ms OFF
Connected to server
100ms ON, 100ms OFF
Sending 3G/GPRS data
Always ON
GPS
(Green)
Module power off
100ms ON, 6s OFF
Searching GPS info
1s ON, 1s OFF
2D fixed
500ms ON, 500ms OFF
3D fixed
100ms ON, 100ms OFF
OBD
(Orange)
OBD unconnected
OFF
OBD connected
Flashing
Bluetooth
(Blue/White)
Power off
OFF
Connected
Always ON
1
2
3
4
5
6
7
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