> On Jun 28, 2023, at 1:00 AM, Grant Taylor via cctalk <[email protected]>
> wrote:
>
> Tony's email makes me ask more questions than I have (smart alack) answers
> to. Maybe ~> hopefully I can ~> will learn something.
>
> On 6/27/23 10:26 PM, Tony Duell wrote:
>> For a few inches, which would be enough here I think, I've used an IDC DA15
>> plug and socket crimped onto the normal ribbon cable. Technically it's wrong
>> but the reflections on that length of cable won't matter.
>
> Isn't 10Base<something> quite resilient? Especially at these distances?
Very definitely. The Ethernet spec gives a 50 meter limit for the AUI cable
length, and describes it as a controlled impedance cable with shielded twisted
pairs. But I agree with Tony that for short lengths a plain ribbon cable would
do just fine. And "short" I would define as "electrically short" -- much less
than a wavelength, so one meter is likely still ok if you need that much.
> Though I don't know if AUI is considered 10Base<anything> in and of itself.
> Doesn't it become 10Base5 / 10Base2 / 10Base-T based on what transceiver is
> on the other side of / attached to the other end of the AUI cable?
Correct. The AUI cable is defined for 10 Mb/s Ethernet, and the transceiver at
the far end attaches it to 10Base5 or 2 or T or even "broad" (Ethernet over
cable TV).
paul
