Re: Telephone "in use" light

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Article #16800

#16800

From: Wendy Shaffer
Date: Sun, 10 Jan 1993 03:01

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Regarding the telephone in use light, the Feb issue of Popular Electronics has
a schematic.  Unfortunately, I'm completely unfamiliar with how the telephone lines
work.
The schematic shows two wires going to the telephone line.  One of them is marked with the word "Tip" and a + sign.  The other is marked with "Ring" and 
a minus sign.  Could somebody fill me in on what these mean and how to identify
one from the other.  Thanks
---Wendy
shaffer@minerva.cis.yale.edu

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Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!yale.edu!not-for-mail
From: shaffer-wendy@MINERVA.CIS.YALE.EDU (Wendy Shaffer)
Newsgroups: sci.electronics
Subject: Re: Telephone "in use" light
Date: 9 Jan 1993 22:01:25 -0500
Organization: Yale University Science & Engineering UNIX(tm), New Haven, CT 06520-2158
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