3 Sep
2006
3 Sep
'06
10:27 p.m.
Roy J. Tellason wrote:
On Sunday 03 September 2006 04:14 pm, jim stephens
wrote:
SCSI Single ended external case from main system. They didn't have
the HVD to cover the noise problems.
I am a long time away from the arguments, but I understand that
the problem was with mixing the pulses in the REQ and ACK in
when one was in the selection phase, and getting bad target
selects, by ringing on the data lines while doing selects. So the
lines with the sharp rise times were put in the middle of the bundle
and wrapped with grounds to keep that from happening..
There is a certified SCSI round cable especially for the round
type cables, like you usually have with DB25 type cables.
It isn't the same as you would use with RS232 or other types
of 25 pin full cables.
Jim
<snip>
What sort of problems would you expect doing this?