Page 8
4 LED DISPLAY
Blue LED (LED1)
- Indicates the level of the GSM signal from 1 to 5 LED flashes (1 is weak signal, 5 is
excellent signal)
Red LED (LED2)
- LED 2 is used to indicate ongoing traffic on the GSM interface.
Yellow LED (LED3)
- Short flashing indicates that the GSM module is ON, but it is not yet connected on the GSM
network. After connection, yellow led is flashing with short pulse ON and a long pulse OFF.
To Next Page
