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'[EE]: X-10 OEM module'
2000\10\07@195147 by Shawn Yates

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Hello all,

   I am investigating using a PLC (power line carrier) to send data around a building.  I looked at X-10, but it seems to be limited to on and off.  I looked at the devices (TW523) at x10.com.  There is something about an extended data code, but it specificaly says that the OEM receiver can not receive those.

   Does anyone know of an off the shelf OEM module that I can use to send data over the power wires withing a building?  I can modify my data format and speed on a whim, so anything is fine.  The total length of the data is about 3 bytes, but again thats flexable.  
Thanks for any input,

Shawn

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2000\10\07@232005 by Gordon Varney

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Shawn,
    I believe that you are over looking the obvious in the TW523. This
module is generic and all it does is place a pulse on the AC line to be
received by ???. The TW523 is a transceiver, therefore if one TW523 were to
place a series of data pulse on the AC line, then another TW523 will be able
to receive these pulses. The important thing to remember it that X-10
modules wont be able to decode the data if not in an X-10 format, but I
believe that all you want to do is send data packet to another location. The
TW523 has a data in, data out and a zero crossing signal line.  Use the zero
crossing line to synchronize the data and send the data in a similar data
method as X-10 (same pulse width and timing) but send as many bits in any
order as needed to get the data to the other TW523. Decode it using your
microcontroller and don't worry if X-10 modules can decode it or not. I
believe that this will work for you with no problems.

Gordon Varney


{Original Message removed}

2000\10\07@232506 by Jinx

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> Does anyone know of an off the shelf OEM module that I can use
> to send data over the power wires withing a building?  I can modify
> my data format and speed on a whim, so anything is fine. The total
> length of the data is about 3 bytes, but again thats flexable.

> Thanks for any input,

> Shawn

Have you considered modifying a baby monitor ? I looked at
this a while ago and it seemed feasible. My potential customer
disappeared so it never got finished, but I did get as far as
picking up a NZ$40 set from an electronics retailer and doing
some exploratory surgery on it

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2000\10\08@122647 by Dan Michaels

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Shawn Yates wrote:
..........
>    Does anyone know of an off the shelf OEM module that I can use to send
data over the power wires withing a building?  I can modify my data format
and speed on a whim, so anything is fine.  The total length of the data is
about 3 bytes, but again thats flexable.
>
>Thanks for any input,
>


Might try:

http://208.249.120.241/reviews/index.htm

[note wraparound]
www.smartcomputing.com/editorial/article.asp?article=articles%2Farchive
%2Fg0806%2F15g06%2F15g06%2Easp

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2000\10\08@125423 by Dan Michaels
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Shawn Yates wrote:
..........
>    Does anyone know of an off the shelf OEM module that I can use to send
data over the power wires withing a building?  I can modify my data format
and speed on a whim, so anything is fine.  The total length of the data is
about 3 bytes, but again thats flexable.
>
>Thanks for any input,
>


Also try:

www.smartcomputing.com/editorial/sTOC.asp?guid=gttv6t10&type=4&vol=8&
iss=6

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2000\10\08@155122 by Craig Lee

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If you simply want to communicate PC-PC or PC-PRINTER, you can use the
intelogis passport product.  You get two power bars, two 25pin cables,
two pc modules, and a printer module all for $59US or less!!  This give
you about a 128kbps powerline network with about a 750 ft range.

http://www.intelogis.com

We bought one and we like it!!

Craig

> {Original Message removed}

2000\10\08@170031 by Dan Michaels

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Craig Lee wrote:
>If you simply want to communicate PC-PC or PC-PRINTER, you can use the
>intelogis passport product.  You get two power bars, two 25pin cables,
>two pc modules, and a printer module all for $59US or less!!  This give
>you about a 128kbps powerline network with about a 750 ft range.
>
>http://www.intelogis.com
>
>We bought one and we like it!!
>

Hi Craig,

After about 10 minutes searching around the intelogis site, I "finally"
found some technical info on this product buried down about 6 levels,
and contained in a pdf file - and then it was more FAQ than spec-table
[lord, I hate people who design their sites this way].

They indicate it should go to 350 Kbps - ever get this much? Also,
have you any feel for noise problems and reliability of this type
of communications? They also mention a unit that can do 10 Mbps.
Do you know any more about that?

- danM

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2000\10\09@093013 by Shawn Yates

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Who makes that TW523?

Thanks for the input, that sound like just what i want.

Shawn

-----Original Message-----
From: Gordon Varney [varneyspamspam_OUTCLAS.NET]
Sent: Saturday, October 07, 2000 11:08 PM
To: @spam@PICLISTKILLspamspamMITVMA.MIT.EDU
Subject: Re: [EE]: X-10 OEM module


Shawn,
    I believe that you are over looking the obvious in the TW523. This
module is generic and all it does is place a pulse on the AC line to be
received by ???. The TW523 is a transceiver, therefore if one TW523 were to
place a series of data pulse on the AC line, then another TW523 will be able
to receive these pulses. The important thing to remember it that X-10
modules wont be able to decode the data if not in an X-10 format, but I
believe that all you want to do is send data packet to another location. The
TW523 has a data in, data out and a zero crossing signal line.  Use the zero
crossing line to synchronize the data and send the data in a similar data
method as X-10 (same pulse width and timing) but send as many bits in any
order as needed to get the data to the other TW523. Decode it using your
microcontroller and don't worry if X-10 modules can decode it or not. I
believe that this will work for you with no problems.

Gordon Varney


----- Original Message -----
From: "Shawn Yates" <KILLspamsyatesKILLspamspamCARETECHNOLOGIES.COM>
To: <RemoveMEPICLISTTakeThisOuTspamMITVMA.MIT.EDU>
Sent: Saturday, October 07, 2000 6:48 PM
Subject: [EE]: X-10 OEM module


Hello all,

   I am investigating using a PLC (power line carrier) to send data around
a building.  I looked at X-10, but it seems to be limited to on and off.  I
looked at the devices (TW523) at x10.com.  There is something about an
extended data code, but it specificaly says that the OEM receiver can not
receive those.

   Does anyone know of an off the shelf OEM module that I can use to send
data over the power wires withing a building?  I can modify my data format
and speed on a whim, so anything is fine.  The total length of the data is
about 3 bytes, but again thats flexable.

Thanks for any input,

Shawn

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2000\10\09@093426 by Shawn Yates

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Never mind, I found it.

Actually I had looked at that.  I read the tech notes and they mentioned
that the TW523 will not receive extended data because there is no gap
between the codes or something to that effect.  I will reread the specs.

Thanks again.

Shawn


{Original Message removed}

2000\10\09@095538 by Severson, Rob

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Take a look at http://www.hth.com for a power line device.

{Quote hidden}

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2000\10\09@100616 by Shawn Yates

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If I have to build a board myself, I am thinking about using this chip
http://www.metricom-corp.com/spec1.html


Thanks again

Shawn
-----Original Message-----
From: Severson, Rob [RemoveMEseversonEraseMEspamEraseMEJGED.COM]
Sent: Monday, October 09, 2000 10:09 AM
To: RemoveMEPICLISTspam_OUTspamKILLspamMITVMA.MIT.EDU
Subject: Re: [EE]: X-10 OEM module


Take a look at http://www.hth.com for a power line device.

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2000\10\09@103736 by M. Adam Davis

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The folks who developed the free SNAP protocol also sell a power line modem,
which should be exactly what you're after.  They are, however, situated in
Europe, and it may be that they don't sell 60Hz 120VAC stuff, but it's worth a
check.

http://www.hth.com/plm-24/

Much better than X-10 anything.

-Adam

Shawn Yates wrote:
{Quote hidden}

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