FAQ / Subsea navigation / Question

I’ve noticed 3 LEDs flashing red, orange and green inside the DVL electronics. Is it normal or does it shows some trouble?

It is usually no reason to expose the electronics, but in some occations it is necessary and for OEM systems it is unavoidable. This FAQ is mainly written for DVL OEM systems, but the content applies to the Signatures and DVLs also.

The board stack on the Signature and DVL consists of three boards (+ the sensor board), and two of them have LEDs to indicate their state. 

Stack
Board stack for Signature and DVL

SEC/ INTERFACE BOARDnot in use if serial communication is used.

Yellow LED: ON: 100Mbit/s Ethernet. OFF: 10Mbit/s Ethernet

Orange LED: Ethernet Activity

Red and Green ON: Bootloader mode

Red OFF and Green ON: Normal mode

Red ON and Green OFF: Error 

BBP / PROCESSING BOARD

Red LED: Quick blink when power is added (or reboot). Otherwise OFF.

Continuous red: Error

Green LED: Indicates that the instrument is in command mode. Turns off when the instrument is measuring

Yellow LED: Blink when the instrument pings (similar as the blue LED that is visible from outside if the instrument has a housing. Unlike the blue LED, the yellow cannot be turned off)

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