Astronomy Site: Meade Advanced Products Users Group Archive: Re: [M]: AUX port specifications?


 

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Subject: Re: [M]: AUX port specifications?
From: R. A. Greiner
Reply To: mapug@shore.net
Date: Tue Oct 27 17:35:17 1998

While you're here, how about checking out the Astronomy Book List ?



Matthew Considine wrote:

> I had asked about this awhile ago and the determination was that there
> wasn't enough power to do it.
>
> Matt
>
> On Tue, 27 Oct 1998, John Ruthroff wrote:
>
> > Hi all:
> >
> > Anyone know offhand what sort of voltage/current the AUX port on an
> > LX200 provides? A quick look at Doc G's site didn't have any specific
> > numbers. I'm giving some thought to using it to power a dew heater I
> > want to build to protect my ETX (used as a guide scope on the LX200) but
> > I suspect there isn't ample power available from that port.
> >
> > I've heard it was originally designed to power encoders...anyone know
> > the story on that?
> >
> > thanks/john
> >
> >

The AUX port was designed to power encoders. It has only 5 volts at some
unknown current rating. I would not try to use this for anything but a small
amount of 5 volt ttl logic or such. (like an encoder circuit for example.)

Doc G <http://www.mailbag.com/users/ragreiner>


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