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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 VT102 User Guide</TITLE>
+<LINK HREF="vt102-ug.css" TYPE="text/css" REL="stylesheet">
+</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> VT102 User Guide<TABLE WIDTH="100%">
+<COL SPAN="3" WIDTH="33%">
+<TBODY>
+<TR>
+<TD ALIGN="LEFT"><A HREF="chapter6.html">Chapter 6</A></TD>
+<TD ALIGN="CENTER"><A HREF="contents.html">Contents</A></TD>
+<TD ALIGN="RIGHT">&nbsp;</TD>
+</TR>
+</TBODY>
+</TABLE>
+<HR></DIV>
+<TABLE ID="T6-14" CLASS="majortable" FRAME="VOID" RULES="GROUPS" CELLSPACING="0" CELLPADDING="4" BORDERCOLOR="#ffffff">
+<CAPTION>Table 6-14 Printer Interface Signals</CAPTION>
+<THEAD>
+<TR VALIGN="BOTTOM">
+<TH>Pin</TH>
+<TH>Name (Mnemonic)</TH>
+<TH>CCITT&nbsp;/ EIA</TH>
+<TH>Description</TH>
+</TR>
+</THEAD>
+<TBODY>
+<TR VALIGN="TOP">
+<TD>1</TD>
+<TD>Protective ground<BR>(PGND)</TD>
+<TD>101/AA</TD>
+<TD>Connects to terminal chassis. Also connects to external ground lead of ac power cord.</TD>
+</TR>
+<TR VALIGN="TOP">
+<TD>2</TD>
+<TD>Transmit data<BR>(TXD)</TD>
+<TD>103/BA</TD>
+<TD>From VT102:<BR>Terminal transmits serial characters on TXD to printer. TXD held in
+mark state when characters are not transmitted.</TD>
+</TR>
+<TR VALIGN="TOP">
+<TD>3</TD>
+<TD>Receive data<BR>(RXD)</TD>
+<TD>104/BB</TD>
+<TD>To VT102:<BR>Terminal receives XON and XOFF control characters on RXD. All other
+characters ignored.</TD>
+</TR>
+<TR VALIGN="TOP">
+<TD>6</TD>
+<TD>Data set ready<BR>(DSR)</TD>
+<TD>107/CC</TD>
+<TD>To VT102:<BR>Terminal receives DTR from printer on DSR. If DTR from printer has not
+been on since power up or reset, terminal ignores all print requests. When DTR from
+printer is on, DSR indicates printer status. If DTR turns off, terminal assumes that
+printer cannot receive characters. If DTR turns on again, print operation completes.</TD>
+</TR>
+<TR VALIGN="TOP">
+<TD COLSPAN="4"><P CLASS="note">NOTE: The printer's DTR has a higher priority than XON/XOFF
+control characters. When the printer's DTR is off, data transmission stops even if the
+printer interface option receives XON. When the printer's DTR goes from off to on, the
+terminal assumes that the XON condition is indicated.</P></TD>
+</TR>
+<TR VALIGN="TOP">
+<TD>7</TD>
+<TD>Signal ground<BR>(SGND)</TD>
+<TD>102/AB</TD>
+<TD>SGND is common ground reference potential for all voltages on interface.</TD>
+</TR>
+<TR VALIGN="TOP">
+<TD>20</TD>
+<TD>Data terminal ready<BR>(DTR)</TD>
+<TD>108.2/CD</TD>
+<TD>From VT102:<BR>DTR is on when terminal is on. Printer usually receives DTR as DSR.
+Printer usually needs DTR before operation can begin.</TD>
+</TR>
+</TBODY>
+</TABLE>
+<DIV CLASS="navbar"><HR>
+<TABLE WIDTH="100%">
+<COL SPAN="3" WIDTH="33%">
+<TBODY>
+<TR>
+<TD ALIGN="LEFT"><A HREF="chapter6.html">Chapter 6</A></TD>
+<TD ALIGN="CENTER"><A HREF="contents.html">Contents</A></TD>
+<TD ALIGN="RIGHT">&nbsp;</TD>
+</TR>
+</TBODY>
+</TABLE>
+<DIV CLASS="navbot">http://vt100.net/docs/vt102-ug/table6-14.html</DIV></DIV>
+</BODY>
+</HTML>