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MonnitLink International Cell Gateway LEDs

Keywords: Troubleshooting, Gateway Use, Cellular Gateway, Cell


Troubleshooting tips for understanding Monnitlink International Cell Gateway lights, what they mean and what you can do to correct any issues.


X-Any Color A,G,R,O

Fx-Flashing (on for x seconds, off for x seconds)

G,G.5,G - Communicating to the server. The first light (Left) is solid green, the second light (middle) blinks for half a second indicating the communication to the server, and the third light (Left) will be solid.

Internal Test
A,A,A - Check low level init, APN init
A,A,R - APN Failed to talk

APN Com passed
A,A,G - Internal Memory check
A,R,G - Internal Memory Failed

Memory Check Passed
A,G,G - Communication to Cellular Module
R,G,G - Cell module failed to respond

Cell Module Communication Established
G,G,G - 2 seconds Boot Mode Passed Successfully
If button is held down during this 2 seconds gateway enters Offline Test mode

Offline Factory Test Mode (for testing devices that are not activated on a cellular network)
R,R,R - until button is released,
If it entered this state and you didn't press the button or
if it never leaves all red then it's a hardware button failure

GFR,GFR,GFR - flashes green to indicate button released then returns to red
Not recommended for use in the field. Power cycle to restart boot sequences
See Fulfilment Documentation

Boot Sequence
R,O,O - Waiting to connect to cell tower
No tower in range, check that antenna is snug
RF1,O,O - Obtaining cellular registration
RF.5,O,O - Negotiating to cell tower

G,O,O - Cellular connection to tower
GF2,O,O - Obtaining IP Address, initializing data session
GF1,O,O - DNS Resolving
G,RF.5,O - Communicating to server
G,G,RF.5 - Network reforming
G,G,G - Run Mode

Run Mode
G,G,G - all systems online and previous server communication successful
GF.5,X,X - AGPS/GPS being acquired
G,R,G - All systems online and previous server communication failed
GF.5,R,G - Last Server communication failed and cellular data link is attempting to reestablish.
R,R,G - Last Server communication failed and cellular data link was not active.
R,G,G - Cellular service unavailable no communication timer not lapsed yet (last communication with server successful)
G,G,RF.5 - Network reforming
G,GF.5,G - Communicating to server, previous server communication successful
G,RF.5,G - Communicating to server, previous server communication failed
G,G,GF.5 - Communication with sensor.
RF1,X,G - Obtaining cellular registration
RF.5,X,G - Negotiating to cell tower
GF2,X,G - Obtaining IP Address, initializing data session
GF1,X,G - DNS Resolving

Code Error
RF.5,RF.5,RF.5 (two flashes then off for 2 seconds, repeat)

SMS Message Lights
FG,FG,FG - 20 Seconds - On reception of successful SMS configuration message
X,X,X - No reaction on no reception of valid text

Error Cases
FR,FR,FR - 1 second - Cell Modem failed to start
FR,FR,FR - 2 seconds - Failed to extract identifiers from cell modem
FR,FR,FR - 3 to 4 seconds - Error writing operating parameters to modem
FR,FR,FR - 10 Seconds - SIM locked or SIM failure, Network locked, Illegal MS or ME, AKA not configured not set up correctly, or bad geographical location