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GSM/3G LED states
LED
Color
Light characteristics
Description
GSM/ 3G
green
off
-
constantly on
Connected to a server, TCP/IP active
single flash
Connecting to a server If double flash does
not change into continuously on: No data
card OR Antenna faulty
double flash
Initialization status of GSM/3G engine If
double flash does not change into
continuously on: Antenna faulty
triple flash
Reset status of GSM/3G engine
blinking
Idle status of GSM/3G engine, the device is
ready to connect to a server. If blinking
does not change into continuously on:
Device not registered OR Online Mode
Handling not set to “always connect to
server”
red
off
No TCP/IP data over the air receiving/
sending
constantly on
Fatal GSM/3G error (i.e. no SIM card
inserted)
flashing irregularly
TCP/IP data over the air receiving/sending
first green,
then red
green single flash
then red constantly on
Code repeated: GPRS provider settings not
correct, e.g. APN
green double flash
then red constantly on
Wrong PIN If this code is repeated: No
SIM / SIM faulty OR GSM module faulty
GPS LED states
(Models with GPS functionality only)
LED
Color
Light characteristics
Description
GPS
green
Off
GPS is disabled
constantly on
Valid GPS data available
double flash
No valid GPS data available
red
off
GPS antenna OK
constantly on
GPS antenna error (missing or short
circuited)
Technical Information
WS 403 Remote Solution
Indicator elements
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©
Danfoss | March 2016
L1426375 | BC00000241en-US0203