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'two wire coms [OT]'
1997\10\16@165549 by Eric van Es

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On this subject: did anyone else hear about the nice idea of using powerlines
to connect ppl to the 'net?

News just broke here...

Richard wrote:

{Quote hidden}

--
Eric van Es               | Cape Town, South Africa
.....vanesKILLspamspam@spam@ilink.nis.za | http://www.nis.za/~vanes
LOOKING FOR TEMPORARY / HOLIDAY ACCOMODATION?
http://www.nis.za/~vanes/accom.htm

1997\10\17@001237 by Harold M Hallikainen

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On Thu, 16 Oct 1997 22:50:42 +0200 Eric van Es <vanesspamKILLspamILINK.NIS.ZA>
writes:
>On this subject: did anyone else hear about the nice idea of using
>powerlines
>to connect ppl to the 'net?
>
>News just broke here...
>

       Doesn't sound like much to me.  Power lines are real noisey and
any communications RF on them stops at the local step-down transformer.
So, the low voltage power line could, I suppose, be used as a local drop,
and they could put a router on each pole with a transformer to put info
onto the higher voltage lines higher on the pole.  But, what is the data
capacity of those lines?  So...  I don't think there's much capability
here... but I've been wrong before.

Harold

1997\10\17@082323 by Mike Smith

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-----Original Message-----
From: Eric van Es <.....vanesKILLspamspam.....ILINK.NIS.ZA>
To: EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU <PICLISTspamspam_OUTMITVMA.MIT.EDU>
Date: Friday, 17 October 1997 6:34
Subject: Re: two wire coms [OT]


>On this subject: did anyone else hear about the nice idea of using
powerlines
>to connect ppl to the 'net?
>
>News just broke here...
>


What a great idea!  Hang on a second while I jack into
Cyberspace(tm)(c)......
Fumbles with clipleads on the end of IEC(also tm I guess) mains cable.......
Connects Neutral to wristwatch.... nothing so far.
Picks up Acti....
no carrie
#&D:\pic\pic archive 3Q@*

















MikeS
<@spam@mikesmith_ozKILLspamspamrelaymail.net>

1997\10\17@084925 by Jack Warren

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> On this subject: did anyone else hear about the nice idea of using powerlines
> to connect ppl to the 'net?
>
> News just broke here...
>

Interesting.  How do they get past the pole pig?


Jack Warren

1997\10\17@115634 by Pekka Ritamaki

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At 22:50 16.10.1997 +0200, you wrote:
>On this subject: did anyone else hear about the nice idea of using powerlines
>to connect ppl to the 'net?

Yes I am working powerline communications.
This is Lon-based network at 120KHz carrier. This design monitors
coin-machines ( one hand bandits) and sends info to owner if somebody take
money out or device is broken.
This is not ideal system, there are many difficuties for beginners: Do not
consider this as an idel way to communicate between stations.

I can mention some difficulties:

- How to move signal from on phase to other.
- A new CE-regulation ( European Interface standars)  requires a lot of
capacitors for powerline filtering in each power supply input. These
capacitors eat a small high frequency signal from power line ( as required CE!)
-You can not control what happens a the cutomer power lines after you has
got everything working

Pekka

Pekka Ritamaki PROBYTE Oy Nirvankatu 31
33820 TAMPERE Finland http://www.sci.fi/~pri
Hardware+software+development tools
phone INT +358-3-2661885 fax INT +358-3-2661886

1997\10\17@133553 by Reginald Neale

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>On Thu, 16 Oct 1997 22:50:42 +0200 Eric van Es <KILLspamvanesKILLspamspamILINK.NIS.ZA>
>writes:
>>On this subject: did anyone else hear about the nice idea of using
>>powerlines
>>to connect ppl to the 'net?
>>
>>News just broke here...
>>
>
>        Doesn't sound like much to me.  Power lines are real noisey and
>any communications RF on them stops at the local step-down transformer.
>So, the low voltage power line could, I suppose, be used as a local drop,
>and they could put a router on each pole with a transformer to put info
>onto the higher voltage lines higher on the pole.  But, what is the data
>capacity of those lines?  So...  I don't think there's much capability
>here... but I've been wrong before.
>
>Harold

Wireless to each distribution xfmr might work. Would require striking a
deal with the power company.

Reg

1997\10\17@142039 by Eric van Es

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Dows the pole pig have a more explicit name?

Jack Warren wrote:

> > On this subject: did anyone else hear about the nice idea of using
powerlines
{Quote hidden}

--
Eric van Es               | Cape Town, South Africa
RemoveMEvanesTakeThisOuTspamilink.nis.za | http://www.nis.za/~vanes
LOOKING FOR TEMPORARY / HOLIDAY ACCOMODATION?
http://www.nis.za/~vanes/accom.htm

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