[sci.electronics] X-10 and the CEbus

hpoppe@bierstadt.scd.ucar.edu (Herb Poppe) (01/10/90)

Are X-10 devices compatible with the power line carrier portion of
the CEbus specs?

--
Herb Poppe      NCAR                         INTERNET: hpoppe@ncar.ucar.edu
(303) 497-1296  P.O. Box 3000                   CSNET: hpoppe@ncar.CSNET
		Boulder, CO  80307               UUCP: hpoppe@ncar.UUCP

ridder@elvira.enet.dec.com (Hans Ridder) (01/10/90)

In article <5948@ncar.ucar.edu> hpoppe@bierstadt.scd.ucar.edu (Herb Poppe) writes:
>Are X-10 devices compatible with the power line carrier portion of
>the CEbus specs?

Nope.  Apparently they will *not* even peaceably coexist.  The X-10
transmits about 60 bits/second, and the CEbus/PLbus transmits (if I
remember right) 1000 *one* bits/second. Zeros take longer!

>--
>Herb Poppe      NCAR                         INTERNET: hpoppe@ncar.ucar.edu
>(303) 497-1296  P.O. Box 3000                   CSNET: hpoppe@ncar.CSNET
>		Boulder, CO  80307               UUCP: hpoppe@ncar.UUCP

-hans
========================================================================
  Hans-Gabriel Ridder			Digital Equipment Corporation
  ridder@elvira.enet.dec.com		Customer Support Center
  ...decwrl!elvira.enet!ridder		Colorado Springs, CO

rkh@mtune.ATT.COM (Robert Halloran) (01/10/90)

In article <5948@ncar.ucar.edu> hpoppe@bierstadt.scd.ucar.edu (Herb Poppe) writes:
>Are X-10 devices compatible with the power line carrier portion of
>the CEbus specs?

The Aug/Sept issue of Steve Ciarcia's Circuit Cellar Ink has an article
on pg. 50 about X-10 vs. CEBus.  Put simply, they aren't compatible and
apparently interfere with one another because of their common use of a
120 KHz signal.  The article says that future applications will have to
choose between the two.

						Bob Halloran
=========================================================================
UUCP: att!mtune!rkh				Internet: rkh@mtune.ATT.COM
Disclaimer: If you think AT&T would have ME as a spokesman, you're crazed.
Quote: "Remember, kids, if some weirdo in a blue suit offers you some DOS,
	   JUST SAY NO!!!" 

markz@ssc.UUCP (Mark Zenier) (01/10/90)

In article <5948@ncar.ucar.edu>, hpoppe@bierstadt.scd.ucar.edu (Herb Poppe) writes:
> Are X-10 devices compatible with the power line carrier portion of
> the CEbus specs?

According to an article in Circuit Cellar INK, August/September 1989,
they are "completly incompatible and, indeed, interfere with one another".

Picking the same carrier frequency (120 Khz) was not smart.

markz@ssc.uucp

jn53747@etana.tut.fi (Nousiainen Juha Antti) (01/10/90)

From article <5948@ncar.ucar.edu>, by hpoppe@bierstadt.scd.ucar.edu (Herb Poppe):
> Are X-10 devices compatible with the power line carrier portion of
> the CEbus specs?
> 
> --
> Herb Poppe      NCAR                         INTERNET: hpoppe@ncar.ucar.edu
> (303) 497-1296  P.O. Box 3000                   CSNET: hpoppe@ncar.CSNET
> 		Boulder, CO  80307               UUCP: hpoppe@ncar.UUCP

What is CEbus and where can I find more information?

-----------------------------------------------------------------------
"The sum of the intelligence of the world is constant,
                                            The population is growing."
Juha Nousiainen jn53747@tut.fi

hpoppe@bierstadt.scd.ucar.edu (Herb Poppe) (01/11/90)

In article <371@ssc.UUCP> markz@ssc.UUCP (Mark Zenier) writes:
>In article <5948@ncar.ucar.edu>, hpoppe@bierstadt.scd.ucar.edu (Herb Poppe) writes:
>> Are X-10 devices compatible with the power line carrier portion of
>> the CEbus specs?
>
>According to an article in Circuit Cellar INK, August/September 1989,
>they are "completly incompatible and, indeed, interfere with one another".

I appreciate everyone who responded to this question. Since you've been so
nice, I've decided to reward you with another question! :-)

Are there any CEBus devices on the market yet that provide the
functionality of the typical X-10 devices; for example, an incandescent
lamp switch/dimmer that can be controlled locally or over the house wiring?
If such devices are not yet available, what manufacturers should I
watch for to be early players in the CEBus game?

Thanks.

--
Herb Poppe      NCAR                         INTERNET: hpoppe@ncar.ucar.edu
(303) 497-1296  P.O. Box 3000                   CSNET: hpoppe@ncar.CSNET
		Boulder, CO  80307               UUCP: hpoppe@ncar.UUCP

psfales@cbnewsc.ATT.COM (Peter Fales) (01/11/90)

In article <5948@ncar.ucar.edu>, hpoppe@bierstadt.scd.ucar.edu (Herb Poppe) writes:
> Are X-10 devices compatible with the power line carrier portion of
> the CEbus specs?

No.

-- 
Peter Fales			AT&T, Room 5B-420
N9IYJ            		2000 N. Naperville Rd.
UUCP:	...att!ihlpb!psfales	Naperville, IL 60566
Domain: psfales@ihlpb.att.com	work:	(708) 979-8031

rkh@mtune.ATT.COM (Robert Halloran) (01/11/90)

In article <10692@etana.tut.fi> jn53747@etana.tut.fi (Nousiainen Juha Antti) writes:
>What is CEbus and where can I find more information?

The address of the Electronic Industries Association is: 2001 Eye St NW
							 Washington DC 20006

I have no idea what charges they might ask for the CEBus spec, if any.

						Bob Halloran
=========================================================================
UUCP: att!mtune!rkh				Internet: rkh@mtune.ATT.COM
Disclaimer: If you think AT&T would have ME as a spokesman, you're crazed.
Quote: "Remember, kids, if some weirdo in a blue suit offers you some DOS,
	   JUST SAY NO!!!"