Article View: comp.sys.sun
Article #10347Keyboard cables too short
From: Doug Faunt
Date: Wed, 18 Jan 1989 02:25
Date: Wed, 18 Jan 1989 02:25
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We're running a SUN-2 monitor and keyboard at 70 feet using three sheilded pairs in a cable, one for the keyboard and mouse and another for the video. The monitor and video board are ECL which was necessary for that long a run, but the mouse and keyboard are TTL levels. If you want to build your own "amplifier" it'd just require a +5 volt supply at the KB/mouse end and a non-inverting line driver IC.
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arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!ncis.llnl.gov!ncis!helios.ee.lbl.gov!pasteur!ucbvax!husc6!rice!sun-spots-requestShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!ncis.llnl.gov!ncis!helios.ee.lbl.gov!pasteur!ucbvax!husc6!rice!sun-spots-request From: faunt@cisco.com (Doug Faunt) Newsgroups: comp.sys.sun Subject: Keyboard cables too short Message-ID: <8901122226.AA15352@rice.edu> Date: 18 Jan 89 02:25:11 GMT Sender: usenet@rice.edu Organization: Sun-Spots Lines: 6 Approved: Sun-Spots@rice.edu Original-Date: Thu, 12 Jan 89 14:28:33 PST X-Sun-Spots-Digest: Volume 7, Issue 108, message 7 of 16