<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html lang="en-us" xml:lang="en-us"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="security" content="public" /> <meta name="Robots" content="index,follow" /> <meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' /> <meta name="DC.Type" content="concept" /> <meta name="DC.Title" content="VT220 workstation operating modes" /> <meta name="abstract" content="This topic lists several operating modes that are supported while the system negotiates the VT220 workstation type." /> <meta name="description" content="This topic lists several operating modes that are supported while the system negotiates the VT220 workstation type." /> <meta name="DC.Relation" scheme="URI" content="rzaiwcvtmap.htm" /> <meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" /> <meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" /> <meta name="DC.Format" content="XHTML" /> <meta name="DC.Identifier" content="rzaiwvt220opmode" /> <meta name="DC.Language" content="en-us" /> <!-- All rights reserved. Licensed Materials Property of IBM --> <!-- US Government Users Restricted Rights --> <!-- Use, duplication or disclosure restricted by --> <!-- GSA ADP Schedule Contract with IBM Corp. --> <link rel="stylesheet" type="text/css" href="./ibmdita.css" /> <link rel="stylesheet" type="text/css" href="./ic.css" /> <title>VT220 workstation operating modes</title> </head> <body id="rzaiwvt220opmode"><a name="rzaiwvt220opmode"><!-- --></a> <!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script> <h1 class="topictitle1">VT220 workstation operating modes</h1> <div><p>This topic lists several operating modes that are supported while the system negotiates the VT220 workstation type.</p> <p>These operating modes are as follows: </p> <ul><li>VT200 mode with 7-bit controls is the default mode and uses the standard ANSI functions. This mode provides the full range of VT220 capabilities in an 8-bit communications environment with 7-bit controls. This mode supports the DEC multinational character set or national replacement character (NRC) sets, depending on the character set mode selected.</li> <li>VT200 mode with 8-bit controls uses the standard ANSI functions and provides the full range of VT220 capabilities in an 8-bit communications environment with 8-bit controls. This mode supports the DEC multinational character set or NRC sets, depending on the character set mode selected.</li> <li>VT100 mode uses standard ANSI functions. This mode restricts the use of the keyboard to VT100 keys. All data has a 7-bit restriction, and only ASCII, NRC, or special graphics characters generate.</li> <li>VT52 mode uses DEC private functions (not ANSI). This mode restricts the use of the keyboard to VT52 keys.</li> </ul> <p>If VT220 mode is negotiated, then an initial operating mode for Telnet client is selected using the ASCII operating mode (ASCOPRMOD) parameter of the start TCP/IP Telnet (STRTCPTELN) or TELNET command.</p> </div> <div> <div class="familylinks"> <div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiwcvtmap.htm" title="VTxxx key values provide keyboard mapping for support of VTxxx emulation.">VTxxx key values</a></div> </div> </div> </body> </html>