Query: Adding a cassette port: TDD emulation

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Article #15300

#15300

From: William Randy Day
Date: Tue, 20 Jan 1987 22:22

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Believe it or not, I have a need to add cassette ports to IBM XT that
mimic the cassette ports on the original IBM PCs. I am trying to use
XTs as TDDs (telecommunication devices for the deaf) and have some
software that uses the PC's cassette port to modulate the signal sent
to the phone.

Does anyone know how I could add cassette ports to XTs or have a feel
for how expensive and how hard this modification would be?

Thanks in advance,

Randy Day.
UUCP: {decvax|ihnp4}!uw-beaver!uw-june!randy
ARPA: randy@larry.cs.washington.edu
CSNET: randy%washington@relay.cs.net

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!ames!ucbcad!ucbvax!decvax!tektronix!uw-beaver!uw-june!randy
From: randy@uw-june.UUCP (William Randy Day)
Newsgroups: comp.sys.ibm.pc
Subject: Query: Adding a cassette port: TDD emulation
Message-ID: <1858@uw-june.UUCP>
Date: Tue, 20-Jan-87 17:22:49 EST
Article-I.D.: uw-june.1858
Posted: Tue Jan 20 17:22:49 1987
Date-Received: Wed, 21-Jan-87 22:08:45 EST
Organization: U of Washington, CSCI, Seattle
Lines: 16
Keywords: cassette port, tdd, modem