Path: utzoo!telecom-request
Date: Fri, 5 Apr 91 11:25:44 GMT
From: Ashley Salisbury <ans@cs.city.ac.uk>
Newsgroups: comp.dcom.telecom
Subject: Two Wire to In and Out Line Signals
Reply-To: Ashley Salisbury <ans@city.cs.ac.uk>
Message-ID: <telecom11.271.9@eecs.nwu.edu>
Organization: City University, London
Sender: Telecom@eecs.nwu.edu
Approved: Telecom@eecs.nwu.edu
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 11, Issue 271, Message 9 of 12
Lines: 15

Does anyone have details of a simple circuit to convert from a
standard two wire telephone current loop circuit to a pair of
connections for signal in and signal out ... hopefully with a
reasonable degree of feed through cancellation ... ie removal of the
injected signal from the signal out from the line. No, I am not
worrying about line protection, or echo cancellation just the
conversion.


Thanks in advance,


Ashley Saulsbury