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From: amc@whuts.UUCP (Andy Cohill)
Newsgroups: net.analog
Subject: coupling transformer
Message-ID: <230@whuts.UUCP>
Date: Thu, 15-Aug-85 11:06:19 EDT
Article-I.D.: whuts.230
Posted: Thu Aug 15 11:06:19 1985
Date-Received: Tue, 20-Aug-85 01:47:11 EDT
Distribution: net
Organization: AT&T Bell Laboratories
Lines: 16

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I am building a 'smart' RS-232 interface for the BSR house
controller accessories. I am having trouble locating a coupling
transformer to take the 121 kHz signal and modulate it onto the 60
Hz AC line. Can anyone provide any pointers to the transformer or a
company that makes that sort of thing?
 
I am already familiar with Steve Ciarcia's articles on the subject
in Byte. I don't like the way he does things. Too easy to leak 120
volts into your computer.
 
thanks,
         Andy Cohill
         {allegra|ihnp4}houxm!whuxl!whuts!amc
          201/467-7140