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Re: What is this?
- Subject: Re: What is this?
- From: quadrajet1@aol.com (Quadrajet1)
- Date: 11 Oct 2000 05:02:02 GMT
- Newsgroups: comp.sys.apple2
- Organization: AOL http://www.aol.com
- References: <iGRE5.15604$aD2.66883@news-server.bigpond.net.au>
- Xref: supernews.google.com comp.sys.apple2:2340
>See pictures at
>http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=464908865
>
>I don't think the author got it right, it's not an expansion card bacause
>there's no edge connector. It's got feet to stand on its own. The three
>connectors appear to go to a mouse port and provide a pass-through, as well
>as a scsi connector. Perhaps this was to provide a SCSI interface to a IIc
>or early Mac?
>
>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