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Article #4888

VT100 compatibility

#4888
From: Mark Tassanari
Date: Mon, 01 Feb 1988 18:33
26 lines
1569 bytes
Greetings Netfolk,

I have a question regarding VT100 compatibility.

My piece of the network consists of VT200 type terminals talking to VAXes via
DECserver 100s.  We recently installed a DECserver 200 as a service node that 
talks to a bank of Sytek LocalNet modems on another network of non-DEC hosts.
When I try to access one of these hosts while in VT100 emulation everything 
works fine.  However, in VT200 mode the communications fall apart, everything
is garbled.  I'm reasonably certain the problem is the between the Sytek, 
which is talking and expecting to hear VT100 characters, and the terminal, 
which is looking for VT200 characters.  The hosts can be ruled out because an 
identical service connected directly to one of the non-Dec hosts works well
in both terminal emulation modes.

Has anyone run into this?  I was of the impression VT200 was a superset of
VT100 emulation.  Since this application is text only it seems to me we ought
to be safe.  What are the differences besides graphics capability?

Regardless, I'm looking for a solution more palatable than reconfiguring the 
terminal as most of the applications other than this use graphics.  Is it 
possible to have the server convert? 

I welcome any suggestions.

Mark Tassinari
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Message-ID: <3163@lll-winken.llnl.gov>
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!lll-winken!markat

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!lll-winken!markat
From: markat@lll-winken.llnl.gov (Mark Tassanari)
Newsgroups: comp.sys.dec
Subject: VT100 compatibility
Message-ID: <3163@lll-winken.llnl.gov>
Date: 1 Feb 88 18:33:33 GMT
Organization: Lawrence Livermore Labs, Livermore CA
Lines: 25