Simplest hardware node

Simplest hardware node
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Subject Author Date
Simplest hardware node bmearns 11-24-2005
`--> Please Holly5712-26-2005
Posted by bmearns on November 24, 2005, 1:17 am
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I'm looking for the simplest possible hardare implementation that I can
connect via cat5 ethernet cable to my router that my router will
recognize as a node on the network, and be willing to send it data,
even if that data is simply dropped on the floor, so to speak.

Is it possible to just use a power supply and ground to set certain
pins on the cable a constant high or low?

Any help is greatly appreciated. Thanks.


Posted by glen herrmannsfeldt on November 24, 2005, 1:54 am
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bmearns wrote:

> I'm looking for the simplest possible hardare implementation that I can
> connect via cat5 ethernet cable to my router that my router will
> recognize as a node on the network, and be willing to send it data,
> even if that data is simply dropped on the floor, so to speak.

> Is it possible to just use a power supply and ground to set certain
> pins on the cable a constant high or low?

Oh, that's what you mean.

A 10baseT transceiver and a power supply should do it.

-- glen


Posted by James Knott on November 24, 2005, 6:55 am
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glen herrmannsfeldt wrote:

> bmearns wrote:
>
>> I'm looking for the simplest possible hardare implementation that I can
>> connect via cat5 ethernet cable to my router that my router will
>> recognize as a node on the network, and be willing to send it data,
>> even if that data is simply dropped on the floor, so to speak.
>
>> Is it possible to just use a power supply and ground to set certain
>> pins on the cable a constant high or low?
>
> Oh, that's what you mean.
>
> A 10baseT transceiver and a power supply should do it.
>
> -- glen

Or a cheap hub or switch. They might be more readily available.

BTW, please don't request an e-mail reply for a question posted in the
newsgroup. If you can't be bothered to check back here, we can't be
bothered to reply.


Posted by bmearns on November 24, 2005, 9:22 am
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Thanks for both response;

I'm actually looking to expand this project slightly, do you know of
anything even simpler (in terms of hardware, not effort) that I could
do, say with a bread board?


>"If you can't be bothered to check back here, we can't be
bothered to reply."

That's a good point, James thank you, I won't do that anymore.


Posted by Gerard Bok on November 24, 2005, 1:59 pm
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On Thu, 24 Nov 2005 06:55:29 -0500, James Knott

>glen herrmannsfeldt wrote:
>
>> bmearns wrote:
>>
>>> I'm looking for the simplest possible hardare implementation that I can
>>> connect via cat5 ethernet cable to my router that my router will
>>> recognize as a node on the network, and be willing to send it data,
>>> even if that data is simply dropped on the floor, so to speak.
>>
>>> Is it possible to just use a power supply and ground to set certain
>>> pins on the cable a constant high or low?
>>
>> Oh, that's what you mean.
>>
>> A 10baseT transceiver and a power supply should do it.
>>
>> -- glen
>
>Or a cheap hub or switch. They might be more readily available.

Are you sure a router would actually dump data to a hub or switch
without any other connection ?

I would expect some ARP requests --at most--, but no payload :-)

--
Kind regards,
Gerard Bok

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