LAWRENCE.Auger%BIONET@SUMEX-AIM.STANFORD.EDU (Ivan Auger) (10/29/86)
The New York Dept. of Health has had a XYPLEX network for a couple of years already. At the time that we bought it, DEC's LAT was a fiction. We are extremely please with its performance. The load in our VAXes caused by transfering files from PC's was solved by this network. It essentially gives you IBM's 3270 like performance for terminal IO. The following is a clarification of your comments on XYPLEX: every one of our VAXES has a host controller board in their UNIBUS, with software that makes the VAX believe it has terminals attached to it (the XYPLEX device names are TTP1:,TTP2:,etc...) Our host controller boards support 32 connections. Then on a coaxial cable laid out throuout our building we have terminal cluster controllers. Each controller supports 8 rs232 devices. We have PC's, termianl, and printers connected to this ports. Our network consists of 4 host vaxes, more than 30 cluster controllers (2 or 3 of these are connected to a SERIES/1 to give us access tour IBM3081). -------