Article View: sci.electronics
Article #6461Re: Mac to Phone connections...
From: Axello de Roestello
Date: Thu, 27 Aug 1992 16:06
Date: Thu, 27 Aug 1992 16:06
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rubin@cis.ohio-state.edu (Daniel Rubin) writes:
>Hi all... I want to connect my Mac to my phone. I am going to connect the
>speaker of the Mac to the mic of the phone and the speaker from the phone to
>the Mac's mic...
>I know that the levels do not match. The speakers are very high and the mics
Don't do it!!!
Not only do the levels not match, the phone line can have 60 volts across its
wires and will fry your Mac when it is ringing. You have to use a transformer
to isolate your Mac from the phone line. It's a nice project but you must
be more comfortable with electronics before you do it if you don't want to
lose your Mac.
Axel
--
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!sun4nl!fwi.uva.nl!gene.fwi.uva.nl!aroest From: aroest@fwi.uva.nl (Axello de Roestello) Subject: Re: Mac to Phone connections... Message-ID: <1992Aug27.160630.615@fwi.uva.nl> Sender: news@fwi.uva.nl Nntp-Posting-Host: gene.fwi.uva.nl Organization: FWI, University of Amsterdam References: <1992Aug25.004143.18308@cis.ohio-state.edu> Date: Thu, 27 Aug 1992 16:06:30 GMT Lines: 21