Overview of the functions and states of the indication LEDs
LED
OFF
ON
Flashing
SIM
LTE service (daemon) is not active
(disabled or not installed)
SIM is OK
Slow - No sim inserted (or SIM corrupted)
Fast - wrong PIN
NET
Not registered to LTE network
Registered to network
—
SIG
No signal
Excellent signal
Signal quality - faster ∼ better
INT
No WAN access
Unit online, backup active
(or single interface only)
Slow - connected via the primary WAN interface, backup inactive
Fast - connected via backup WAN interface
Note:
All LEDs flashing — LTE module is restarting.
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