"Mark Willis" <[EMAIL PROTECTED]> wrote:
> ARCNet uses 91 ohm cable, it runs one cable from the hub to each
> netcard;
There were a few options on cabling. I recall 75 Ohm cable being another
option, popular since it was common in video applications. OK, it seemed
like a good idea at the time! Other options were UTP and direct to an ACTIVE
hub and up to 7 (8?) stations connected to coax via Tee connectors, with the
last terminated appropriately.
> Any unused Hub port needs a terminator, I think (It's been a
> WHILE since I did ARCNet!)
Yes, on a passive hub they were all supposed to be terminated. Thank GOD I
never had to deal with THAT option much!
> [...]
> Also, I have some Ethernet cards that I really SHOULD sell off, some day
> when I get to it, Ethernet's faster than ARCNet, about 4 times. (If you
> mostly use Ethernet as a Floppy surrogate, who cares? <G>)
Man, it's fun recalling all this stuff! The secret to ARCnet was that, while
the base speed was much lower (2.5 vs 10Mbps) on paper, the token-passing
bus used made it well suited for sustained heavy loads. In many classrooms,
30 stations on an Ethernet segment would bog to a crawl, while good ol'
ARCnet kept chugging slowly but surely. Of course, this was before 10Base-T
and switched, but still...
- Bob
(Thankful Springsteen's "Glory Days" doesn't bring back memories like
THIS!)
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