[5173] in linux-scsi channel archive
Re: Termination questions
daemon@ATHENA.MIT.EDU (D. Lance Robinson)
Thu Nov 19 04:53:27 1998
Date: Wed, 18 Nov 1998 11:48:17 -0700
From: "D. Lance Robinson" <lancer@airways.com>
Reply-To: lancer@airways.com
To: Steven Saner <ssaner@southwind.net>
CC: linux-scsi@vger.rutgers.edu
Steven,
You always need termination at both ends. If the device doesn't
terminate for you, you will have to put either a passive or active
terminator at that end of the cable.
<>< Lance.
Steven Saner wrote:
> My question is, do I
> need a terminator at the opposite end of the cable from the
> controller.
>
> The controller is auto-terminating, so it will take care of its end of
> the bus. According to its documentation, generally the device you are
> connecting it to will have built in termination that can be enabled or
> disabled. The tape drive documentation, however, does not indicate
> that it has internal termination. It suggests that you will need to
> put a terminator on the cable if the tape drive is the only, or last device.
>
> A friend of mine told me that some of the newer cards would not
> require such a terminator and that I should try it without. I have not
> yet done that, but I wondered if someone has experience with this
> and could shed some light on it.
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