[Public-list] was inverter now DC electronics

[J Bergquist]

Thanks john. I actually already had the manual, but wasn't able to find any
documentation on the mysterious 3rd wire.

Fortunately, when I wired up the instruments using the red as +12V and the
shield as 0V, they appear to work normally (yay!) Why the shield should be
0V as opposed to the yellow wire, I have no idea.

Now, one other question for those of you who might have these kinds of
instruments....is there some way to connect a tillerpilot to the wind and
speed instruments which allows you to set up to steer for a certain wind
direction, as opposed to just using the tillerpilot's internal compass?

I suppose I should probably just get out my tiller pilot and see if it has a
plug for the seatalk bus...

Gosh all these electronics, I wonder how I ever survived without them...

I wonder if I will one day regret having ever installed the darn things.

Later,

JB

On 10/13/06, John Boor <mahseer at kos.net> wrote:
>
> I just went to the raymarine web site to find the answer.  The ST30 series
> of instruments can be powered individually or can be connected as a loop,
> they call this seatalk.  Only one cable connects each instrument together
> so it would appear that the 3rd pin is probably  a data link connection.
> If you want the owners manual it is available as a down load.
>
> John Boor
> MAHSEER #380
>
> > Great. So it sounds like the bottom line is that I can use a modified
> sine
> > wave inverter to power my laptop. Awesome.
> >
> > Thanks for all the contributions everybody! I learned a lot here! Very
> > helpful stuff!
> >
> > On a somewhat related subject...I am installing wind and depth/speed
> > instruments. They came with my boat 4 years ago. They are Raymarine
> ST-30
> > instruments. I am just now installing them. I went to wire them up last
> > night and they have 3-pins on the connector for power. Now, since they
> are
> > DC-powered electronics, why would they need 3 pins? I am a bit confused
> > about this.
> >
> > Kind regards,
> >
> > J Bergquist
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