There are ten There are five LED indicators on the CTM-500 ONE wireless gateway.
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LED | STATUS | DESCRIPTION | |
|---|---|---|---|
Power |  | (solid) normal powered operation | |
 | (flashing slowly) standby mode | ||
 | (off) Device has no power | GNSS ||
SIM |  | | (solid) valid position fixUsing SIM1 |
| (flashing slowly) no valid position fix | ||
| (off) GNSS disabled | ||
Wi-Fi  | slot 1 selected, no SIM | ||
 | (solid) Wi-Fi enabled | ||
| (off) Wi-Fi disabled | ||
| (solid) pass through mode enabled ETH0 | | (flashing slowly) pass through mode enabled ETH1Using SIM2 |
 | (flashing) slot 2 selected, no SIM | ||
| (off) pass through mode Cellular connection disabled | IPSEC||
Cellular  | | (solid) IPSEC ENABLED, and all tunnels CONNECTED connected - good signal | |
| (flashing slowly) IPSEC ENABLED, not all tunnels are CONNECTED | ||
| (off) IPSEC disabled |  | (solid) cellular connected |
 | (flashing quickly) cellular connecting | ||
 | (flashing slowly) cellular not connected/idle | ||
| (off) cellular connectivity disabled | ||
TECH |  | (solid) 5G | |
| (off) no cellular registration | ||
SIM 1 | | (solid) SIM1 selected and detected) connected - poor signal | |
| (solid) not connected – good signal | ||
| (flashing) not connected – poor signal | ||
Wi-Fi | | (solid) AP enabled – connected device | |
| (flashing slowly) SIM1 selected, NOT detected) AP enabled – no connected devices | ||
| (off) SIM1 not selected | SIM 2AP disabled | |
GNSS  | | (solid) SIM2 selected and detectedvalid position fix | |
| (flashing slowly) SIM2 selected, NOT detected | ||
| (off) SIM2 not selected | ||
Cellular  |  ) no valid position fix | ||
| (solid or flashing) poor signal | ||
 | (solid or flashing) good signal | ||
 | (solid or flashing) excellent signal |
Note: When cellular data is disabled, the following will be OFF: CONNECTION, TECH, SIM 1, SIM 2, and all three cellular lights.
Ethernet Port LEDs
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) dead reckoning mode |