Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site minn-ua.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!ihnp4!stolaf!umn-cs!minn-ua!tim From: tim@minn-ua.UUCP (Tim Giebelhaus) Newsgroups: net.dcom Subject: Re: 56Kbit telephone lines? - (nf) Message-ID: <981@minn-ua.UUCP> Date: Wed, 15-Feb-84 13:30:45 EST Article-I.D.: minn-ua.981 Posted: Wed Feb 15 13:30:45 1984 Date-Received: Sat, 18-Feb-84 01:05:53 EST References: <2532@fortune.UUCP> Organization: Univ. of Minn. Computer Center, Minneapolis Lines: 23 I can't stand it anymore. I thought some one more knowlegable than me would reply. Anyway, 56 Kb can run several terminals at 9600 baud or better. The U of M's computer is not on campus, it is a few miles away. What some places in the U of M are doing is running a 56Kb line from the computer to the terminals. A mux makes it so several terminals can be run on the same line. The mux also takes care of the probelm of the sync. I have heard that the lines come in both varieties, though. It is about $1000 for installation of the line, and about $300 a month to rent the line. The Mux equipment is around $5000. It is a good deal considering all the modems and single lines you can do away with. A normal business phone is about $50 a month and how much to install. The best you can do on it is 1200 baud (normally). You can run 6 terminals at 9600 baud for about the same price. I have heard that you can get up to 32 9600 baud terminals on one 56Kb line. If you're like me, you did some quick math and said 32 terinals at 9600 baud? It works like this: not all the terminals are doing I/O at the same time. In fact, most the time, the line is just sitting idle waiting for you to type something. Even when you do type, you are not typing at 960 charicters per second. If everyone was getting graphics output at the same time, it would probably be slower. It would probably be a good idea to do some statistical analisis of your use to find out how many terimals you actually can use.