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    Reading Router LED Colors and Patterns

    The LED colors and patterns give you a quick reading of the router’s status.

    To reduce the router’s power consumption, you can turn off the LEDs by going to System > LEDs > LED Powersaver Mode and clicking ENABLE.

    Initializing Table Of Contents...

    Patterns

    • Solid: Single color, always on
    • Fast flashing: One color on for 0.2 s, then off or another color for 0.2 s
    • Slow Flashing: One color on for 0.25 s, then off or another color for 0.75 s
    • Pulse: One color on for 0.5 s, then a 0.2 s pulse off or another color
    • Chase: All LEDs on for 0.2 seconds in sequence from left to right, continuously

    You can adjust the timing of the Fast Flashing, Slow Flashing and Chase patterns under System > LEDs > LED Pattern.

    GNSS

    Solid Green

    • Satellite fix is available

    Solid Red

    • Searching for a satellite fix

    Fast Flashing Red

    • GNSS antenna is open or shorted.

    Note: Antenna may appear to be connected, but current draw is too high or too low.

    Slow Flashing Red

    • GNSS antenna is disconnected.

    Note: Current draw is below predefined threshold.

    Off

    • GNSS is off or disabled

    WI-FI

    Solid Green (pulse off with activity)

    • Connected in client mode (good signal) with traffic

    Note: If AP has traffic at the same time, LED displays the client status (displaying a connected depot is the priority)

    Slow Flashing Green

    • Wi-Fi client is enabled but not connected, and no AP is enabled

    Solid Yellow (pulse off with activity)

    • Connected in client mode (fair signal) with traffic

    Note: If AP also has traffic at the same time, LED displays the client status (displaying a connected depot is the priority)

    Solid Red (pulse off with activity)

    • Connected in client mode (poor signal) with traffic

    Note: If AP also has traffic at the same time, LED displays the client status (displaying a connected depot is the priority)

    Solid Purple (pulse off with activity)

    • AP with traffic, and Wi-Fi client enabled but no connection or
    • AP with traffic, and Wi-Fi client disabled

    Off

    • No Wi-Fi enabled (no AP, no Wi-Fi client)

    CELLULAR

    The following table shows the thresholds for bar strength mappings that are defined for GSM, WCDMA and LTE service.

    BARS GSM/2G WCDMA/3G LTE/4G and 5G
    RSSI RSSI RRSP SNR
    5 x ≥ -78 x ≥ -76 x ≥ -85 x ≥ 130
    4 -78 > x ≥ -87 -76 > x ≥ -83 -85 > x ≥ -95 130 > x ≥ 50
    3 -87 > x ≥ -93 -83 > x ≥ -93 -95 > x ≥ -105 50 > x ≥ 10
    2 -93 > x ≥ -102 -93 > x ≥ -103 -105 > x ≥ -115 10 > x ≥ -30
    1 -102 > x ≥ -109 -103 > x ≥ -113 -115 > x ≥ -1000 -30 > x ≥ -200
    0 x < -109 x < -113 x < -1000 x < -200

    Solid Green (pulse off with activity)

    • Connected to the network with a good connection (equivalent to 4–5 bars)

    Slow Flashing Green

    • Connecting to the network

    Solid Yellow (pulse off with activity)

    • Connected to a network with a fair connection (equivalent to 2–3 bars)

    Solid Red (pulse off with activity)

    • Connected to a network with a poor connection (equivalent to 1 bar)

    Slow Flashing Red

    • No network connection

    Slow Alternating Flashing Red/Yellow

    Off

    • Cellular radio disabled

    POWER

    Solid Green

    • Router operating normally with ignition on

    Fast Flashing Green

    • Router is rebooting after Reset button pressed for <5 seconds (or reset from AirLink OS)

    Solid Yellow

    • Router is booting or
    • the router is thermally throttled — one or more of CPU, cellular radio, and Wi-Fi radio has exceeded threshold. When operating temperature returns to normal, LED returns to solid green.

    Fast Flashing Yellow

    • Router is rebooting and being reset to factory defaults, after Reset button is pressed for 20 to 40 seconds

    Solid Red

    • Power is present, but the router is not running (ignition is off, router is in standby mode, etc.)

    Note: If the router is in standby mode, the Power LED will be solid red only if the AirLink OS Standby LED setting is enabled (System > MCU > Power Management), otherwise the LED will be Off. (By default, the setting is enabled.)

    Fast Flashing Red

    • Router is rebooting and being reset to the default template, after Reset button is pressed for 5 to 20 seconds

    Slow Flashing Red

    • Router is not operating because the operating temperature range is exceeded (thermal shutdown)

    Fast Alternating Flashing Yellow/Red

    • Reset button held > 40 seconds, canceling the reset action and rebooting normally when released. If pressing the reset button for more than 5 seconds, and you decide that the router should do a regular reboot (not a reset to default template or factory defaults), continue pressing Reset until the LED flashes Yellow and Red.

    Off

    • No power or the router is in standby mode and the AirLink OS Standby LED setting is disabled (System > MCU > Power Management)

    All LEDs

    A yellow LED chase pattern indicates an AirLink OS software update in progress.

    Important: Do not turn off the power while the update is in progress.

    A green LED chase pattern indicates a radio module firmware update or radio module firmware switch in progress. For more information, see Radio Module Firmware Image Management.

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