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VI. LED Signals
Signal
Meaning
Short single flash after
powering on
Indicating that the Device is functioning.
Six half-second signals,
once after power on
Chart plotter presence indicator. This sentence
is produced on first receiving of “Datum” (PGN
129044) or “Magnetic Variation” (PGN 127258)
messages. Usually it happens within 20 seconds after
chart plotter loading.
Repeated very short
(25 milliseconds) signals
Normal operation. It is indicator of periodical
messages sending (see Table 2 in Section III). Interval
between flashes is 500 milliseconds by default, but can
be changed by user.
Three second signal, once
or repeatedly
Programming signals. See Section V for details.
Two second signal, once
or repeatedly
Digital sensor communication problem (in case
of permanent failure, two second signals with a small
intervals).
One second signal with
six second interval
Network problem. No messages was actually sent
or received during the last seven seconds.
Signals during firmware update are described in the next Section.
Summary of Contents for YDBC-05
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