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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><HTML><HEAD><TITLE>VT100.net: Digital VT100 User Guide</TITLE><LINK HREF="vt100-ug.css" TYPE="text/css" REL="stylesheet"><LINK HREF="/favicon.ico" TYPE="image/x-icon" REL="shortcut icon"></HEAD><BODY><DIV CLASS="navbar"><A HREF="http://vt100.net/"><IMG CLASS="button" SRC="vt100.net-logo.png" ALT="VT100.net" HEIGHT="16" WIDTH="102"></A> VT100 User Guide<TABLE WIDTH="100%"><COL SPAN="3" WIDTH="33%"><TBODY><TR><TD ALIGN="LEFT"> </TD><TD ALIGN="CENTER"><A HREF="contents.html">Contents</A></TD><TD ALIGN="RIGHT"><A HREF="chapter2.html">Chapter 2</A></TD></TR></TBODY></TABLE><HR></DIV><H1 ID="S1">Chapter 1<BR>Operator Information</H1><P>The VT100 is a simple device to operate. The terminal (<A HREF="figure1-1.html">Figure 1-1</A>) is basically atypewriter that uses a video screen instead of paper and communicates with acomputer. If you can operate a typewriter, you can operate a VT100.</P><P>Chapter 1 is divided into five parts:</P><OL><LI>Controls and Indicators</LI><LI>Setup Mode</LI><LI>Definition of Each Setup Feature</LI><LI>Self-Testing the VT100</LI><LI>What to do in the Event of a Problem</LI></OL><P><A HREF="#S1.1">Part 1</A> shows all the controls and indicators on the terminal and summarizesthe function of each, thus providing a quick reference for these functions.</P><P><A HREF="#S1.2">Part 2</A> defines the SET-UP mode and briefly summarizes its features.</P><P><A HREF="#S1.3">Part 3</A> describes each feature in detail. Refer to this section if you needfurther information on a feature mentioned in the SET-UP Summary providedin Part 2.</P><P><A HREF="#S1.4">Part 4</A> provides information on self-testing the VT100. It outlines the stepsrequired to start the built-in self-tests and how to interpret the results oncethe tests have been run.</P><P><A HREF="#S1.5">Part 5</A> provides a procedure to follow in case you encounter any problemwith the VT100. Easily recognized failures with simple corrective actions areprovided for each symptom. Check the list on page 18 before calling for service.</P><H2 ID="S1.1">Part 1 -- Keyboard Control and Indicators</H2><P>The VT100 terminal normally performs a two-part function. It is an input device toa computer -- information entered through the keyboard is sent to the computer. Itis simultaneously an output device for the computer -- that is, data coming in fromthe computer is displayed on the video screen. The following controls and indicatorson the VT100 keyboard are illustrated in <A HREF="#F1-2">Figure 1-2</A>.</P><TABLE ID="F1-2" CLASS="figure"><CAPTION>Figure 1-2 VT100 Keyboard</CAPTION><TBODY><TR><TD><IMG SRC="figure1-2a.png" ALT="" HEIGHT="300" WIDTH="972"></TD></TR></TBODY></TABLE><P><IMG SRC="keys/br/setup.png" ALT="" HEIGHT="40" WIDTH="60"> <STRONG>SETUP</STRONG><BR>This key is used in conjunction with other keys to perform specific functions suchas setting tabs, scrolling, and altering terminal characteristics.</P><P><STRONG>ON LINE</STRONG><BR>This indicator lights to show that the VT100 is on-line and ready to transmit orreceive messages.</P><P><STRONG>LOCAL</STRONG><BR>This indicator lights to show that the terminal is off-line and cannot communicatewith the host device. In local mode the keyboard remains active and all characterstyped are placed on the screen.</P><P><STRONG>KEYBOARD LOCKED</STRONG><BR>This indicator lights to show that the keyboard has been turned off. The VT100 isstill able to receive data from the host. This condition can be cleared by enteringand exiting SET-UP mode.</P><P><STRONG>L1--L4</STRONG><BR>These indicators are turned on and off by the host. Consult your local operatingprocedures for the meaning of each indicator. L1--L4 are also used to show self-testerrors.</P><P><IMG SRC="keys/br/arrows.png" ALT="[Up] [Down] [Left] [Right]" HEIGHT="40" WIDTH="172"><BR>Each of these keys causes the VT100 to transmit a code which has a specialmeaning to your system. Consult your local operating procedures for the meaningof these keys. In SET-UP mode the <IMG SRC="keys/br/upsmall.png" ALT="[Up]" HEIGHT="15" WIDTH="15"> and <IMG SRC="keys/br/downsmall.png" ALT="[Down]" HEIGHT="15" WIDTH="15"> keys increase or decrease thebrightness of the display. The <IMG SRC="keys/br/leftsmall.png" ALT="[Left]" HEIGHT="15" WIDTH="15"> and <IMG SRC="keys/br/rightsmall.png" ALT="[Right]" HEIGHT="15" WIDTH="15"> keys move the cursor left and right.</P><P><IMG SRC="keys/br/backspace.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>BACKSPACE</STRONG><BR>This key transmits a backspace code.</P><P><IMG SRC="keys/br/break.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>BREAK</STRONG><BR>This key transmits a break signal.</P><P><IMG SRC="keys/br/pf1-4.png" ALT="" HEIGHT="40" WIDTH="172"> <STRONG>PF1 - PF4</STRONG><BR>Each of these keys causes the VT100 to transmit a code which has a specialmeaning to your system. Consult your local operating procedures for the meaningsof these keys.</P><P><STRONG>Numeric Keypad</STRONG><BR>The numeric keypad enables numbers to be entered in calculator fashion. Each keyin the numeric keypad generates the same character as the corresponding numerickey on the main keyboard. The <SPAN CLASS="keyname">ENTER</SPAN> key corresponds to the <SPAN CLASS="keyname">RETURN</SPAN> key.These keys may also be interpreted by the host computer as special function keys.Consult your local operating procedures for the meanings of these keys.</P><P><IMG SRC="keys/br/delete.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>DELETE</STRONG><BR>This key causes the VT100 to transmit a delete character code to the host system.The deleted character may or may not be erased from the screen.</P><P><IMG SRC="keys/br/return.png" ALT="" HEIGHT="40" WIDTH="60"> <STRONG>RETURN</STRONG><BR>This key transmits either a carriage return (CR) code or a carriage return (CR) andlinefeed (LF) code. This is a SET-UP selectable feature.</P><P><IMG SRC="keys/br/linefeed.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>LINEFEED</STRONG><BR>This key transmits a linefeed code.</P><P><IMG SRC="keys/br/shift1.png" ALT="" HEIGHT="40" WIDTH="94"> <STRONG>SHIFT</STRONG><BR>When pressed, this key enables the uppercase function of all keys. If a key doesnot have an uppercase function the <SPAN CLASS="keyname">SHIFT</SPAN> key will be disregarded.</P><P><IMG SRC="keys/br/0.png" ALT="[0]" HEIGHT="40" WIDTH="40"> <STRONG>RESET</STRONG><BR>When the terminal is in SET-UP mode, this key starts the reset sequence. This hasthe same result as turning the terminal power off and then on.</P><P><IMG SRC="keys/br/9.png" ALT="[9]" HEIGHT="40" WIDTH="40"> <STRONG>80/132 COLUMNS</STRONG><BR>When the terminal is in SET-UP A mode, this key switches the display line sizefrom 80 to 132 characters per line or from 132 to 80 characters per line.</P><P><IMG SRC="keys/br/8.png" ALT="[8]" HEIGHT="40" WIDTH="40"> <STRONG>RECEIVE SPEED</STRONG><BR>When the terminal is in SET-UP B mode, this key steps the terminal through thereceive baud rate settings in ascending order.</P><P><IMG SRC="keys/br/7.png" ALT="[7]" HEIGHT="40" WIDTH="40"> <STRONG>TRANSMIT SPEED</STRONG><BR>When the terminal is in SET-UP B mode, this key steps the terminal through thetransmit baud rate settings in ascending order.</P><P><IMG SRC="keys/br/6.png" ALT="[6]" HEIGHT="40" WIDTH="40"> <STRONG>TOGGLE 1/0</STRONG><BR>When the terminal is in SET-UP B mode, this key turns the selected operationalfeature on or off.</P><TABLE ID="F1-2B" CLASS="figure"><CAPTION>Figure 1-2 VT100 Keyboard (cont.)</CAPTION><TBODY><TR><TD><IMG SRC="figure1-2b.png" ALT="" HEIGHT="300" WIDTH="972"></TD></TR></TBODY></TABLE><P><IMG SRC="keys/br/g.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>BELL G</STRONG><BR>When pressed in combination with the <SPAN CLASS="keyname">CTRL</SPAN> key, this key causes a bell code to besent to the host.</P><P><IMG SRC="keys/br/5.png" ALT="[5]" HEIGHT="40" WIDTH="40"> <STRONG>SET-UP A/B</STRONG><BR>When the terminal is in SET-UP mode, this key switches the terminal from SET-UPA to SET-UP B or from SET-UP B to SET-UP A.</P><P><IMG SRC="keys/br/4.png" ALT="[4]" HEIGHT="40" WIDTH="40"> <STRONG>LINE/LOCAL</STRONG><BR>In SET-UP mode, this key alternately places the VT100 ON LINE or LOCAL to yoursystem. When it is ON LINE, the VT100 communicates with your system. When itis in LOCAL the VT100 is electrically disconnected from your system.</P><P><IMG SRC="keys/br/3.png" ALT="[3]" HEIGHT="40" WIDTH="40"> <STRONG>CLEAR ALL TABS</STRONG><BR>In SET-UP A, this key clears all horizontal tabs set in the VT100.</P><P><IMG SRC="keys/br/2.png" ALT="[2]" HEIGHT="40" WIDTH="40"> <STRONG>SET/CLEAR TAB</STRONG><BR>In SET-UP A, this key sets or clears individual horizontal tabs.</P><P><IMG SRC="keys/br/capslock.png" ALT="" HEIGHT="40" WIDTH="72"> <STRONG>CAPS LOCK</STRONG><BR>This key enables the transmission of uppercase alphabetic characters only. Allnumeric and special symbol keys remain in lowercase.</P><P><IMG SRC="keys/br/noscroll.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>NO SCROLL</STRONG><BR>When first pressed, this key stops the transmission of data from the computer tothe VT100. When pressed a second time, transmission resumes from where it wasstopped. Check your local operating procedures to ensure that your system recognizesthis key.</P><P><IMG SRC="keys/br/ctrl.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>CTRL</STRONG><BR>When pressed in combination with another key, the <SPAN CLASS="keyname">CTRL</SPAN> key causes the VT100to transmit a code which has a special meaning to your system.</P><P><IMG SRC="keys/br/tab.png" ALT="" HEIGHT="40" WIDTH="60"> <STRONG>TAB</STRONG><BR>This key transmits a tab code.</P><P><IMG SRC="keys/br/esc.png" ALT="" HEIGHT="40" WIDTH="40"> <STRONG>ESC</STRONG><BR>This key transmits a code which normally has a special meaning to your system. Inmany applications, it tells your system to treat the next keys pressed as a command.</P><H3 ID="S1.1.1">Monitor Controls</H3><P>The VT100 monitor contains only two controls: the power switch and the powerselector switch, which is used to adapt the terminal to the available ac inputvoltage range (see specifications).</P><H4 ID="S1.1.1.1">Audible Indicators (Tones)</H4><P>There are three audible alarms associated with the VT100: a short tone (click), along tone (bell), and a series of long tones.</P><P><STRONG>Short Tone (Click)</STRONG> -- The short tone is sounded by the terminal whenever a key ispressed, with the following exceptions:</P><UL><LI><SPAN CLASS="keyname">SHIFT</SPAN> or <SPAN CLASS="keyname">CTRL</SPAN> keys do not generate any keyclick because these keys donot transmit any codes but only modify the codes transmitted by otherkeys.</LI><LI>KBD LOCKED indicator is turned on; in which case, the characters typedare lost.</LI><LI>The keyclick feature has been turned off in SET-UP mode.</LI></UL><P><STRONG>Long Tone (Bell)</STRONG> -- The long tone is sounded by the terminal to indicate one of thefollowing conditions:</P><UL><LI>A bell code was received from the computer.</LI><LI>The cursor is eight characters away from the right margin and the marginbell feature is enabled.</LI></UL><P><STRONG>Series of Long Tones</STRONG> -- The terminal will sound the long tone several times inrapid succession to indicate that the nonvolatile memory (NVR) had difficulty inreading or writing the SET-UP features. (When this occurs, check the SET-UPfeatures and then perform the Recall or Save operation again.)</P><H2 ID="S1.2">Part 2 -- Set-Up Mode</H2><P>Unlike most terminals, the VT100 does not use switches or jumpers to individually⌨️ 快捷键说明
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