Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site umcp-cs.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!umcp-cs!jim From: jim@umcp-cs.UUCP (Jim Williams) Newsgroups: net.micro Subject: ST520 connector conspiracy? Message-ID: <1211@umcp-cs.UUCP> Date: Tue, 13-Aug-85 17:33:34 EDT Article-I.D.: umcp-cs.1211 Posted: Tue Aug 13 17:33:34 1985 Date-Received: Thu, 15-Aug-85 00:46:02 EDT Distribution: net Organization: U of Maryland, Computer Science Dept., College Park, MD Lines: 24 In looking at my friend's Atari ST/520 I noticed that the Hard Disk / DMA connector is a DB-19 (i.e. just like everyone's favorite terminal connector, but with 19 pins instead of 25). I did not recall that being one of the DB sizes and checked my catalogs. I find DB-9 -15 -25 -37 and -50 (the 50 has 3 rows of pins) in every catalog, but NO DB-19. Did Atari invent it? This machine also has a few zillion-pin DIN style plugs. Are they custom or standard? It appears that Atari wanted to use a different connector for everything, so you couldn't plug something into the wrong socket and fry it. This is fine, but I hope they didn't invent connectors! Several people (not all on the net) have pointed out that the Atari ST/520 and the Amiga are open architectures, unlike the MAC, and are thus potential (hardware) hacker machines. This will be a little less true if they have non-standard (and therefore expensive) connectors. The list of ST/520 connectors sent out by pete@tekig was very useful. Is it too early to ask for a similar list of connector pin-outs for the Amiga?