On Nov 26, 12:49, CLASSICCMP_at_trailing-edge.com wrote:
> Subject: RE: Need DTC brand Qbus SCSI board info
> >No LSI chips on board; only two ROM chips (82S123N's with paper labels
"LSH
> >1" and LSD0" typed on them) plus others are typical 74xxx-series chips
(LS,
> >S and 7400-series) except bus I/F chips are the typical DS8641N's.
> >It is suspected to be SCSI as there is a 50-pin pin connector on the
> >ejector end and a tag on the antistatic bag has "Probably SCSI" written
on
> >it by what is apparently a DEC dealer/reseller in Pittsburgh.
>
> 50-pin connectors might hint that it could be SCSI, but it could be
> a lot of other things too. 8-inch SA800-type floppy is the most obvious.
>
> DTC also sourced some boards which were controllers for SA1000-type
> and SA4000-type hard drives.
It could also be a QIC tape controller; I've seen dual-height versions of
those from about that era.
I doubt it would be SCSI in discrete logic (no LSI) in that small a space.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Received on Thu Nov 26 1998 - 14:15:46 GMT