[8516] in linux-scsi channel archive
Re: Fast Wide vs Ultra Wide
daemon@ATHENA.MIT.EDU (Drew Eckhardt)
Mon Apr 3 17:25:17 2000
Message-Id: <200004032105.PAA08221@chopper.Poohsticks.ORG>
To: linux-scsi@vger.rutgers.edu
In-reply-to: Your message of "Mon, 03 Apr 2000 14:20:24 MDT."
<Pine.LNX.4.10.10004031416050.3256-100000@localhost.localdomain>
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Content-ID: <8218.954795915.1@chopper.Poohsticks.ORG>
Date: Mon, 03 Apr 2000 15:05:15 -0600
From: Drew Eckhardt <drew@Poohsticks.Org>
In message <Pine.LNX.4.10.10004031416050.3256-100000@localhost.localdomain>, sm
arlowe@ihs.com writes:
>Note that all terminators are definitely NOT created equal, so just having
>one is no guarantee either. I've found that when shopping for terminators,
>the expensive ones really do work a lot better.
For single-ended SCSI, you have passive termination (a resistor
network between power, ground, and the signal lines), active
termination (a resistor network between the signal lines and
a voltage regulator), and forced perfect termination (I believe
this is individual active circuits on each of the signal lines).
Active terminators are more likely to work than passive, and forced
perfect an even better bet.
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