Path: utzoo!telecom-request
Date: 29 Apr 91 14:01:39 GMT
From: Ruediger Vermoehlen <ruediger@informatik.rwth-aachen.de>
Newsgroups: comp.dcom.telecom
Subject: US Phone Connectors
Message-ID: <telecom11.317.8@eecs.nwu.edu>
Organization: RBI - RWTH Aachen
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X-Telecom-Digest: Volume 11, Issue 317, Message 8 of 13
Lines: 16

Hi NETers!

I have a question about the pin assignment of US phone jacks and the
purpose of some pins. In a user manual of a modem, I found a diagram
of a so called 'RJ12/13' modular jack with lines referred to as R, T,
A, and A1. The function of R and T is obvious (analog input/output),
while the function of the other two puzzles me. I would appreciate any
information anybody can give me about these lines. Please reply by
mail. Thanks in advance,


Ruediger Vermoehlen
ruediger@informatik.rwth-aachen.de    ruediger@rwthinf.uucp
ruediger%rwthinf.uucp@uunet.uu.net    ...!uunet!mcsun!unido!rwthinf!ruediger