Re: SCSI terminator placement question

[shack@onyx.southwind.net (Randy Shackelford)]

In article <931723522.046.68@news.remarQ.com>,
Jason Whorton <jason@microxl.com> wrote:
>Hello.  I have recently connected an Apple High Speed SCSI Card, 25-pin to
>50-pin cable, 50-pin pass through terminator and Apple HD80SC to my beige,
>enhanced IIe.  I am not sure where the terminator exactly goes.  The Apple
>High Speed SCSI card manual shows two hard drives connected to a IIgs and
>the terminator is on the second 50-pin connector on the back of the final
>hard drive.  The System Cable (25-pin to 50-pin cable) manual says to put
>the terminator BETWEEN the System Cable and the hard drive.  Should I put it
>BETWEEN the cable and hard drive or on the second connector on the back of
>the hard drive?  It has booted both ways, but I don't know if it could be
>damaged by having it connected wrong.  I appreciate any advice.

You want it at the end. Since the HS SCSI has its own termination in the
form of resistors just like hard disk terminator blocks, you don't need
a terminator at the beginning of the chain. The old SCSI cards don't have
their own so ostensibly you need one there too. Having termination in the
"right" plaaces isn't as crucial as people try to make you think. It's not
a bad idea to follow the rules but you won't zap anything. The other day I
put an external hard disk on one of the Macs sitting around and some time
later I noticed that I forgot a terminator. Only by seeing it without one
did I notice. It worked the same either way.
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