System Industries Controllers

[mat at hou5e.UUCP]

I was speaking with a friend last night about this stuff as we were
standing next to his 11/45 with SI disks and RK05s and he told me that
he had talked about this with someone previously at DEC.  The story is
that many of the older DEC UNIBUS devices weren't designed to the proper
tolerances, or with enough buffering, or whatever.  Note that it is
almost always the RK05s or TU10s that choke -- systems with two or more
foriegn controllers usually don't show problems with the foriegn units
but with the DEC units.

						Mark Terribile
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