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Path: utzoo!linus!wivax!mckeeman
From: mckeeman@wivax.UUCP
Newsgroups: net.micro
Subject: BSR system
Message-ID: <19382@wivax.UUCP>
Date: Mon, 9-Apr-84 19:58:24 EST
Article-I.D.: wivax.19382
Posted: Mon Apr  9 19:58:24 1984
Date-Received: Tue, 10-Apr-84 07:39:52 EST
Sender: mckeeman@wivax.UUCP
Organization: Wang Institute, Tyngsboro, Ma.  01879
Lines: 14

The BSR system turns on and off 110v switches which reside
in smallish modules that plug into the wall (and other
places).  The signals are pulsed 120KHz on top of the 60
cycle 110v house wiring.  Sears and Radio Shack sell the
BSR system.  DAK industries does too, at cut rate and
questionable quality.

Radio Shack USED TO sell a device that connected a model 1
or 4 to the line.  My local store was unable to get one and
claims it has been discontinued.  Heath does sell a kit
GD-1530 for about $125 which takes in re232 signals and
makes the 120KHz signals.  There are a number of articles
on how the system works.  Try Ciarcia in Radio-electronics
Sept. 1980 pg 47 for starters.