2 Mar
2012
2 Mar
'12
1:06 p.m.
On 03/02/2012 11:16 AM, Mouse wrote:
Yes, I've done that trick in a pinch. I'm looking to avoid having to
order connectors and take the time (even the 5mins) to make cables
though, as I'm in a really busy time right now and just want to get a
few things on the network.
One thing I want short ones for is to "dangle" a 10baseT transcievers
I could also
use a handful of short AUI cables.
Depending on what "short" means here, you may be able to make your own
with a pair of DA15s and some 15-pin ribbon cable. It doesn't have the
right transmission-line characteristics, but for sufficiently short
cables that doesn't matter in practice. (I once experimented; I had to
get up to something like three metres before I started getting a
significant level of errors.)
It seems to be difficult, at least for me, to find out just sort sort
of signals, in the electrical sense, run over AUI. But at 10Mb, bits
are roughly 50 feet long (at these frequencies, signals in copper
travel largely by skin effect at somewhere between .4 and .8
lightspeed, depending on the details of the cable), so it's no surprise
that you can get away with a lot at cable lengths of only a foot or so. from the front AUI connector on a BA213; for that I
only need 2-3
inches. When I plug transceivers directly into those AUI ports, they
protrude such that I can't close the doors.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA