3.3 Operation LEDs
The LED numbering is the same as the LED labels on the modem panel: from left to right in
order: LED1 (
blue
, left), LED3 (
green
, center), LED2 (
red
, right).
Factory default LED signals:
LED identifier
Events
LED 1
GSM / GPRS status
•
If there is a SIM and PIN code ok, the LED will turn on
•
If there is no SIM or the SIM PIN is incorrect, the LED
flashes every 1 second.
•
If there is no SIM, the LED flashes every 1 second.
•
• RSSI flashes the LED according to the field strength value
(1 flash lasts for 1 second, followed by a pause)
o
RSSI <= -98
→
1 flashing
o
RSSI> -98 and <= -83
→
2 flashing
o
RSSI> -83 and <= -68
→
3 flashes
o
RSSI> -68
→
4 flashes
LED 3
SIM status / SIM failure or
PIN failure
•
During
network
registration
: led is
active
•
During
network
search
:
blinking once per second
•
When
connected to the network
and the
IP connection
is okay:
blinking twice per second
LED 3
LED 1
LED 2
