What an amazing conversation.
Where else would anyone go to get such an animated and in depth discussion on
the finest details of the theory and practice of installing thickwire ethernet!
Are we geeks or what :-)
Regards,
Peter Coghlan.
The whole collection went to
Computer Museum of America in Roswell, GA
https://computermuseumofamerica.org/
> the AMP coring tool ... doesn't screw in though ... I don't know if this
> is consistent with the original 3 mbit Ethernet, as I've never worked
> with that.
I was speaking of the gear used on the 3 Mbit. I don't recall the 10 Mbit
stuff at all I have this vague memory that the 3
On 2018-06-26 08:02 PM, Paul Koning via cctalk wrote:
> There clearly is confusion about what terminators are and how they work.
> It's all perfectly straightforward elementary classic E & M, and any halfway
> decent RF theory textbook will make things clear. Even a source as
> elementary as t
> On Jun 26, 2018, at 10:13 PM, Jon Elson via cctalk
> wrote:
>
> On 06/26/2018 06:20 PM, Eric Smith via cctalk wrote:
>> On 06/26/2018 03:15 PM, Grant Taylor via cctalk wrote:
I can only guess that having a terminator too close interferes with or
weakens the signal too much in some
On Tue, Jun 26, 2018 at 8:13 PM, Jon Elson wrote:
> On 06/26/2018 06:20 PM, Eric Smith via cctalk wrote:
>
>> On 06/26/2018 03:15 PM, Grant Taylor via cctalk wrote:
>>
>>> I can only guess that having a terminator too close interferes with or
weakens the signal too much in some way.
>>>
> On Jun 27, 2018, at 12:36 PM, Eric Smith via cctalk
> wrote:
>
> Collision detection was the reason (or at least _a_ reason) why the spacing
> of taps on the 10BASE-5 "thick" Ethernet cable was required to be an exact
> multiple of 2.5m. It was never clear to me why this was not also a
> re
On Wed, Jun 27, 2018 at 10:59 AM, Paul Koning
wrote:
> > On Jun 27, 2018, at 12:36 PM, Eric Smith via cctalk <
> cctalk@classiccmp.org> wrote:
> > Collision detection was the reason (or at least _a_ reason) why the
> spacing
> > of taps on the 10BASE-5 "thick" Ethernet cable was required to be an
> On Jun 27, 2018, at 1:45 PM, Eric Smith wrote:
>
> On Wed, Jun 27, 2018 at 10:59 AM, Paul Koning wrote:
> > On Jun 27, 2018, at 12:36 PM, Eric Smith via cctalk
> > wrote:
> > Collision detection was the reason (or at least _a_ reason) why the spacing
> > of taps on the 10BASE-5 "thick" Et
On Wed, Jun 27, 2018 at 12:39 PM, Paul Koning
wrote:
> This reminds me of a research project done at DEC that at one point was
> discussed as a possible product but didn't happen: an Ethernet segment
> mapping device. It was called "packet voltmeter". The idea was that you'd
> have one at each
On 27/06/18 02:56, Chuck Guzis via cctalk wrote:
So where did the "leave extra line before the terminator" came from?
No idea. But on thickwire the taps were all supposed to be made at
specifically marked positions (for the reason given earlier).
Perhaps someone (incorrectly) thought that t
On 06/27/2018 04:19 PM, Antonio Carlini via cctalk wrote:
> No idea. But on thickwire the taps were all supposed to be made at
> specifically marked positions (for the reason given earlier).
> Perhaps someone (incorrectly) thought that the terminator should also be
> at such a position and so a te
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