Re: What is this?

["Simon Biber" <simon@basilisk2.cjb.net>]

Thanks, that's interesting. I have a Mac Plus which could use this, but
without the software it's not very useful right? Anyway my SCSI port works
fine, I use it for the original 40MB hard disk :-)

Simon.

>    What it is is a card to test the SCSI port on the early Mac Plus.  It
was
> used in conjunction with the diagnostics supplied to the dealers back
then.
> There is a short cable that plugs from the "To Mouse Conn" to the mouse
port on
> a Plus, the mouse plugs into the port labeled "To Mouse Unit", and there
was a
> DB25M/M short cable that plugged in the SCSI Port on the Mac to the SCSI
Conn
> on the card.  I believe they also called this a SCSI Loopback Card.
>
> Raymond