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Path: utzoo!watmath!clyde!bonnie!akgua!sdcsvax!jc
From: jc@sdcsvax.UUCP (John Cornelius)
Newsgroups: net.micro,net.arch,net.dcom
Subject: Re: I/O concensus?
Message-ID: <508@sdcsvax.UUCP>
Date: Sat, 1-Dec-84 14:28:16 EST
Article-I.D.: sdcsvax.508
Posted: Sat Dec  1 14:28:16 1984
Date-Received: Sun, 2-Dec-84 06:08:40 EST
References: <694@sjuvax.UUCP>
Reply-To: jc@sdcsvax.UUCP (John Cornelius)
Distribution: net
Organization: EECS Dept. U.C. San Diego
Lines: 12
Xref: sdcsvax net.micro:8533 net.arch:708 net.dcom:721
Summary: A DMA coupled terminal subsystem (Xyplex)


Xyplex makes a terminal subsystem for VAX that moves the character processing
out onto a coax cable network. Boxes on the network perform all driver
functions associated with characters. Data is transferred from the net to the
VAX in records (usually one line) except when in cbreak mode. Drivers exist for
VMS and UNIX. Records are transferred to the terminal in whatever size they are
presented to the driver via DMA. The system has the additional feature that it
allows up to 256 VAXen or terminal clusters to be connected on the same
network. Terminals on any cluster can access any VAX if desired. Each cluster
has an equivalent of L.sys and ttys so such things can be restricted of need
be.