There are ten LED indicators on the CTM-500 wireless gateway.

LED	STATUS	DESCRIPTION

LED	STATUS	DESCRIPTION
Power		(solid) normal powered operation
		(flashing slowly) standby mode
		(off) Device has no power
GNSS		(solid) valid position fix
		(flashing slowly) no valid position fix
		(off) GNSS disabled
Wi-Fi		(solid) Wi-Fi enabled
Wi-Fi		(off) Wi-Fi disabled
MODE		(solid) pass through mode enabled ETH0
		(flashing slowly) pass through mode enabled ETH1
		(off) pass through mode disabled
IPSEC		(solid) IPSEC ENABLED, and all tunnels CONNECTED
		(flashing slowly) IPSEC ENABLED, not all tunnels are CONNECTED
		(off) IPSEC disabled
CONNECTION (cellular)		(solid) cellular connected
		(flashing quickly) cellular connecting
		(flashing slowly) cellular not connected/idle
		(off) cellular connectivity disabled
TECH		(solid) 5G
		(flashing) 4G
		(off) no cellular registration
SIM 1		(solid) SIM1 selected and detected
		(flashing slowly) SIM1 selected, NOT detected
		(off) SIM1 not selected
SIM 2		(solid) SIM2 selected and detected
		(flashing slowly) SIM2 selected, NOT detected
		(off) SIM2 not selected
Cellular		(solid or flashing) poor signal
		(solid or flashing) good signal
		(solid or flashing) excellent signal