21 Apr
2011
21 Apr
'11
1:50 p.m.
On 4/21/11 4:44 PM, Al Kossow wrote:
I suspect that "bus and tag" is very, very different from the "bus
and tag" interface that connects CPUs to peripheral controllers. First
of all, the standardized IBM bus & tag interface doesn't have a radial
cable along with the bus & tag cables.
These
connectors are smaller than b&t, and are a weird mix of pins,
blades,
and coax.
OK, the connectors I was thinking of were like page 1-2 of
TM114-1072-J-1M_Model_114_Tech_Oct73
The 114 calls the two cables DC (radial) and SIGNAL (BUSED). SIGNAL has
bus and tag lines and
the DC cable has the coax. They are similar to the Memorex cables with
AMP connectiors Tom
mentioned. Weren't the cables from the CPU to Controllers
"Channel" cables?
They are "parallel channel" interfaces, which themselves consist of a
single "bus" cable and a single "tag" cable.
-Dave
--
Dave McGuire
Port Charlotte, FL