Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!decvax!ittatc!dcdwest!sdcsvax!ucbvax!telecom From: embick%tetra@NOSC.ARPA (Edward M. Embick) Newsgroups: mod.telecom Subject: Tip, ring & sleeve Message-ID: <8602050503.AA04170@ucbvax.berkeley.edu> Date: Mon, 3-Feb-86 21:11:12 EST Article-I.D.: ucbvax.8602050503.AA04170 Posted: Mon Feb 3 21:11:12 1986 Date-Received: Thu, 6-Feb-86 02:31:50 EST Sender: bloom@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 33 Approved: telecom@xx.lcs.mit.edu >re >>another good one is the original meaning of the tip and ring lines. >>funny thing about >ring<, is that it has nothing to do with the ringer in the >>phone. the story i got from a telecommunications guru was there once was >>a little plug, looked a lot like a coax plug, and the middle (the tip) was >>called tip, and the outside (the ring) was called ring. >Give me a break. Of course tip and ring have nothing to do with the ringer. >The standard "PHONE" plug has two conducters one on the tip and the other >on the sleeve or "ring." The "ring" side is more descriptive of the jack >where the contact actually is a ring. (ron@Brl) I believe if you examine the standard "classic" phone plug you'll find it has three contacts on it. When I worked for Western Electric many many years ago, much of the cabling we installed had several groups of 3 wires in it. These wires were referred to by the group designator and tip, ring, or sleeve to identify the leads corresponding to the phone plug contacts. ______________________ ___ ___ ___________| | / || || | | \___||___||___________| | ^Tip ^Ring ^Sleeve |______________________| [Elmo- thanks to all who submitted on this. This msg had the best illustration] ------------------------------------------------------------------------------ Ed Embick (the more paths I make, the more paths they break! waaaaaaa....) Computer Sciences Corp. embick@noscvax.UUCP or 4045 Hancock St. {akgua,allegra,decvax,ihnp4,ucbvax}!sdcsvax!noscvax!embick San Diego, CA 92110 MILNET: EMBICK@NOSC (619) 225-8401 x516