We do just that.  We have a cable that has 2 18 guage stranded conductors
for power and 2 stranded 22 guage conductors for data.  Works fine.

-----Original Message-----
From: Micro Eng [mailto:micro_eng@HOTMAIL.COM]
Sent: Friday, April 05, 2002 10:07 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]:RS485 supply


Speaking of CAT5....how much current at 5V can you push thru it?

>From: Mitch Miller <mitch@MDMILLER.COM>
>Reply-To: pic microcontroller discussion list <PICLIST@MITVMA.MIT.EDU>
>To: PICLIST@MITVMA.MIT.EDU
>Subject: Re: [PIC]:RS485 supply
>Date: Fri, 5 Apr 2002 07:34:48 -0600
>
>David,
>
>Are you using Cat5 cable, by chance?  Just curious how much current you're
>running through your bus, and how large the wire is.  Seems like Cat5
>wouldn't carry much current w/o significant loss.
>
>-- Mitch
>
>P.S.  You're mailer is sending a REPLY-TO header making it less-friendly
>to reply to your messages.
>
>
>On Fri, 5 Apr 2002, Orbit Communications wrote:
>
> > Delhaye,
> >
> > We run the power next to the bus wires within the same cable without
> > problem.
> >
> > We use a dual twisted pair.
> >
> >
> > Best Regards
> >
> > David Huisman
> > -----------------------------------------------------------------------
> > ORBIT COMMUNICATIONS
> > Reliable Wireless Solutions (Telemetry, Control, Monitoring ...)
> > Website : http://www.orbitcoms.com
> > PO Box 3469 Tuggerah
> > NSW 2259, AUSTRALIA
> > Phone: 61-2-4393-3627
> > Fax  : 61-2-4393-3685
> > Mobile: 61-413-715-986
> > ----- Original Message -----
> > From: "Delhaye Marijn" <maryn.delhaye@SKYNET.BE>
> > To: <PICLIST@MITVMA.MIT.EDU>
> > Sent: Friday, April 05, 2002 6:32 PM
> > Subject: [PIC]:RS485 supply
> >
> >
> > Hello , I got an RS485 bus with a different number of devices(PIC16F877)
> > connected on the bus . Now is my question , how must i supply these
>devices
> > . Is it possible to put next to the buswires 2 cables with ground and 5
>V .
> > Isn't there a problem with disturtion from other devices ? The distance
>of
> > the buswire is something about 700 m . Thanks for helping me ! Ciao
> >
> > --
> > http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
> >
> >
> >
> >
> >
> >
> > ---
> > Outgoing mail is certified Virus Free.
> > Checked by AVG anti-virus system (http://www.grisoft.com).
> > Version: 6.0.338 / Virus Database: 189 - Release Date: 14-Mar-02
> >
> > --
> > http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
> >
> >
>
>--
>http://www.piclist.com#nomail Going offline? Don't AutoReply us!
>email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
>
>


_________________________________________________________________
Join the world s largest e-mail service with MSN Hotmail.
http://www.hotmail.com

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body