1 Jul
2011
1 Jul
'11
9:46 a.m.
On 7/1/11 12:40 PM, Gene Buckle wrote:
Thanks for the info Dave. I wonder why they went that route... Seems
kinda kludgy. :)
Well like I said, 1960s...not many established standards back then
for this sort of stuff.
-Dave
--
Dave McGuire
Port Charlotte, FL
What IS a "Bus and Tag" cable and what about
them makes them difficult
to make?
B&T is the "parallel channel" interface found on most IBM mainframes.
There are two cables, "bus" which carries data, and "tag" which
carries protocol and handshaking information. B&T, if memory serves,
is good for about 4.5Mbps.
The cables are just a pain. This technology dates back to the 1960s,
and it uses big heavy cables about 1" in diameter, and big huge
bizarre connectors.