Path: utzoo!attcan!uunet!cbmvax!vu-vlsi!dsinc!syd
From: syd@dsinc.UUCP (Syd Weinstein)
Newsgroups: sci.electronics
Subject: Re: BSR X10 bridging?
Message-ID: <418@dsinc.UUCP>
Date: 19 Jul 88 21:51:58 GMT
References: <25559@oliveb.olivetti.com>
Reply-To: syd@dsinc.UUCP (Syd Weinstein)
Distribution: na
Organization: Datacomp Systems, Inc., Huntingdon Valley, PA 19006
Lines: 22

In article <25559@oliveb.olivetti.com> gnome@olivey.olivetti.com (Gary) writes:
>I just tried installing a bunch of X-10 modules and
>find that they don't seem to talk across from one
>phase to another.  I mean that the modules on one phase
>of power wiring will not respond to controllers on the
>other phase.

The x10's insert their carrier on top of the AC.
The depend on the transformer being close and not very big to get
the signals to cross phases.  However, as X10 customer assistance
will be glad to tell you, you can do the same thing by bridging
the phases with a capacitor.  Remember that you are dealing with
PP voltages not the RMS's, so use 400V caps, not 250V ones, but
then all you need is a 2uf cap and it will work fine.
Bridge hot to hot with the cap, and do it down side of a circuit breaker
just in case of failures.
I piggybacked mine on a breaker we use for the cloths dryer.
-- 
=====================================================================
Sydney S. Weinstein, CDP, CCP
Datacomp Systems, Inc.				Voice: (215) 947-9900
{allegra,bellcore,bpa,vu-vlsi}!dsinc!syd	FAX:   (215) 938-0235