Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!linus!vaxine!wjh12!genrad!decvax!ucbvax!ucbcad!tektronix!hplabs!hpda!fortune!wdl1!jbn From: jbn@wdl1.UUCP Newsgroups: net.micro Subject: Re: Wang PCs and printers Message-ID: <297@wdl1.UUCP> Date: Wed, 30-May-84 21:07:02 EDT Article-I.D.: wdl1.297 Posted: Wed May 30 21:07:02 1984 Date-Received: Wed, 6-Jun-84 02:26:31 EDT Lines: 13 The Wang PC comes with two ports standard on the CPU card, an RS-232 serial port and a Centronics-compatible parallel port. Both work fine with non-Wang peripherals. I did the port of AutoCAD, the drafting package to the Wang PC, and have run printers, plotters, and mice off the machine, none made by Wang. All devices were driven by AutoCAD drivers, though, not by the BIOS. One thing to be wary of; the RS-232 port is really RS-232, and insists that the input levels swing outside the +2 to -2 volt range before anything will happen. Input levels of 0 and +5 will not work; the low level must go down to at least -2v or so, preferably -5. +5 to -5 works fine. Some low-rent peripherals don't have a minus supply, and cause problems. I had problems getting a Logimouse to work on the serial port, but the problem was in our Logimouse adapter, not in the mouse itself.