Fwd: SCSI Terminal Server question
jws at jwsss.com
Sun Apr 19 15:46:34 CDT 2015
Pin 11 is the DIFFSENSE signal. It will not be grounded on an SE
cable. an SE cable should have it ganged with all the other grounds to
make HVD shut down so as not to damage the negative side of the diff
drivers, which go into grounds on the SE side, as well as not harming SE
circuits with HVD signals
Also on SE pins 1-11, 15-25 are all grounds. On the HVD, 1,26,14,39, 25
and 50 are all grounds. The rest should not be commoned to those signals.
-------- Forwarded Message --------
Subject: SCSI Terminal Server question
Date: Sat, 18 Apr 2015 15:48:50 -0400 (EDT)
From: Cory Smelosky <b4 at gewt.net>
Reply-To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
To: cctech at classiccmp.org
I have a Digi STS 1032 SCSI terminal server here, thought I'd ask if
anyone knows before I pull out the multimeter and fight with using a
magnifier to count the pins and measure.
50-pin external SCSI, anyone know if this is an HVD SCSI device?
http://gewt.net Personal stuff
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