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- Newsgroups: fj.mail-lists.apollo
- Path: sparky!uunet!stanford.edu!sun-barr!sh.wide!wnoc-tyo-news!etl.go.jp!daemon
- From: nwnexus!lampi@uunet.uu.net (Michael Lampi)
- Subject: Re: Need info on old DSP90 card
- Message-ID: <1992Dec28.082841.15120@etl.go.jp>
- Sender: apollo-request@srvr1.engin.umich.edu
- Organization: Northwest Nexus Inc. (206) 455-3505
- References: <MSX=mC-@engin.umich.edu>
- Distribution: fj
- Date: Thu, 24 Dec 1992 06:32:41 GMT
- Return-Path: <apollo-list-errors@srvr1.engin.umich.edu>
- Approved: kato@etl.go.jp
- Lines: 28
-
- afgun@engin.umich.edu (Andrew F Gunnesch) writes:
-
- >I was going through some old boards in my drawer here and came across
- >one that has me stumped: It's made by systech, and is labelled as
- >MTI 900/1600 50-000004-9. The numbers lead me to believe that it is
- >an old tape controller card. It has a single 50-pin connector at the
- >top along with 10 LEDs, a 5-pin socket labelled J2, and a normal/diag
- >switch. It also has 4 separate 8 switch DIPs on-board. Anybody know
- >what this beast is? The 800/1600 led me to believe low density tape
- >controller, but it's not a Pertec interface (needs 2 cables, not 1).
- >Help!
- >--
-
- Sounds like you hit a real treasure trove! This choice jewel is a
- Multibus board that should have associated with it a black rack-mount
- style panel chock full o'DB-25 connectors. This panel should have
- either 8 or 16 such connectors, and a ribbon cable hanging out one
- end. The cable plugs into the Multibus board. There is a round power
- cable that plugs into the J2 connector. The LEDs display a nifty
- pattern when everything is properly connected and the board has gone
- through its self-test.
-
- Ok, so what is it? It is a serial port multiplexer. This was the same
- board that Danford first used for its SEU products on DSP-80's, etc.
- --
- Michael Lampi lampi@mdlcorp.com
- MDL Corporation 15301 NE 90th Street, Redmond, WA 98052
- (206) 861-6700 (206) 861-6767 FAX
-