25 Jul
2024
25 Jul
'24
5:57 a.m.
On Thu, 25 Jul 2024, Nigel Johnson Ham wrote:
I have never dealt with a massbus controller but have
installed many 9762s on
Emulex controllers. One thing that the device that DEC put into the drive was
to do with sector and index. The bog standard drive comes with them on the A
cable, but in order to have multiple drives you have to move them on to the B
cable, which is where the controllers look for them. It is a tricky w/w job
on the card cage backplane of the drive. I no longer have the procedure.
Thanks for the hint. I will compare both the standard SMD pinout and the
"SMD" side of the adapter.
I've seen that some modern drives have jumpers to select on which cable to
put the I/S signals.
IIRC the transfer rate is 9.6608 MHz - but I may be
worng on that, it has
been a few years!
Just the standard SMD drive speed and not the later SMD-E.
Christian