S190TG User Manual V1.0
The signals of LEDS are as following:
All LEDs
glow and
roll then
flash
This means that the UNIT is
initializing the software and login the
network
the signal
LEDs
glowing
This means that the UNIT is working.
The number of signal LEDs glowing
indicates the signal strength.
Network
LED
flashing
This means the UNIT is at standby
mode
Network
LED
glowing
This means that the UNIT is in using
and the number is being dialed.
GSM LED
glowing
This means that the GSM line is in
using.
PSTN LED
glowing
No use for S190TG
1-7 LEDs
glowing
This means that the initialization has
failed and the number of LEDs
glowing stands for the code of error.
In this case the error code will be
=13=