28 Mar
2011
28 Mar
'11
8:50 a.m.
That would be surprising, as the PCB photo shows 53C90Bs on both
sides. Can the 53C90B be coaxed into doing DSSI? If so, I wasn't aware
of it.
-Dave
On 3/27/11 10:16 AM, David Barnes wrote:
Yupper... worked with em years ago on a Vax
4000/700... SCSI to DSSI adapter... I had 7 drives and this unit in a tower box and it
attached to the Vax via DSSI... pretty cool unit.
On Mar 26, 2011, at 3:04 PM, Mr Ian Primus wrote:
--
Dave McGuire
Port Charlotte, FL
So, in a recent pile-o-stuff, I acquired this
SCSI box. The box itself is a generic two bay SCSI enclosure, but inside is mounted some
kind of bus interface devices. It's a single circuit board, on a frame that mounts in
a half height 5 1/4" bay. The face has a little two line LCD, and some buttons and
lights. The board itself is made by CMD. Seems to be model CSB-2200/SDS.
The board has what appears to be a SCSI input, and two SCSI outputs. The board contains
three NCR 53C90B SCSI chips. Powering the device up, it announces itself as SCEA/S on the
LCD.
Now, from fiddling with the thing, and looking at what it contains, it *appears* to be
some sort of SCSI-SCSI bridge, communicating with two separate busses, and allowing one
external bus to use them. But I don't know. Searching on the model number have failed
to turn up a manual. Searches for SCEA/S invariably turns up articles about various
lawsuits that Sony Computer Entertainment of America have filed against their customers
for using devices they purchased in ways that Sony doesn't like.
So. Any ideas? I took some pictures:
http://i.imgur.com/o9X6s.jpg
http://i.imgur.com/TzV67.jpg
http://i.imgur.com/SQN0b.jpg
-Ian
David Barnes
davebarnes AT roadrunner DOT com
OpenVMS , Tru64 , Solaris , Linux , OS X , SGI Irix
'Making a movie is like asking a question, and when you finish, the movie itself is
the answer.' - Francis Ford Coppola
