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diff --git a/DOCS/vt102-ug/table6-8.html b/DOCS/vt102-ug/table6-8.html new file mode 100644 index 0000000..a20d65c --- /dev/null +++ b/DOCS/vt102-ug/table6-8.html @@ -0,0 +1,165 @@ +<!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"> </TD> +</TR> +</TBODY> +</TABLE> +<HR></DIV> +<TABLE ID="T6-8" CLASS="majortable" FRAME="VOID" RULES="GROUPS" CELLSPACING="0" CELLPADDING="4" BORDERCOLOR="#ffffff"> +<CAPTION>Table 6-8 Half-Duplex with Supervisory Control (HDX A) Signals</CAPTION> +<THEAD> +<TR VALIGN="BOTTOM"> +<TH>Pin</TH> +<TH>Name (Mnemonic)</TH> +<TH>CCITT / EIA</TH> +<TH>Switch</TH> +<TH>Description</TH> +</TR> +</THEAD> +<TBODY> +<TR VALIGN="TOP"> +<TD>1</TD> +<TD>Protective ground<BR>(PGND)</TD> +<TD>101/AA</TD> +<TD>-</TD> +<TD>Connects to terminal chassis. Also connects to external ground through third wire of +power cord.</TD> +</TR> +<TR VALIGN="TOP"> +<TD>2</TD> +<TD>Transmit data<BR>(TXD)</TD> +<TD>103/BA</TD> +<TD>S6</TD> +<TD>From VT102:<BR>When switch S6 is on (closed), signals on TXD are serial characters +and breaks generated by the terminal. TXD is in mark state when no characters are +transmitted.</TD> +</TR> +<TR VALIGN="TOP"> +<TD COLSPAN="5"><P CLASS="note">NOTE: When S6 is on (closed), switch S7 must be off (open).</P></TD> +</TR> +<TR VALIGN="TOP"> +<TD>3</TD> +<TD>Received data<BR>(RXD)</TD> +<TD>104/BB</TD> +<TD>-</TD> +<TD>To VT102:<BR>RXD receives serial characters from the computer.</TD> +</TR> +<TR VALIGN="TOP"> +<TD>4</TD> +<TD>Request to send<BR>(RTS)</TD> +<TD>105/CA</TD> +<TD>S1</TD> +<TD>From VT102:<BR>When switch S1 is on (closed), RTS is on if terminal is ready to +transmit characters and off if terminal is receiving characters.</TD> +</TR> +<TR VALIGN="TOP"> +<TD>5</TD> +<TD>Clear to send<BR>(CTS)</TD> +<TD>106/CB</TD> +<TD>S2</TD> +<TD>To VT102:<BR>When switch S2 is on (closed), CTS indicates when modem is ready to +transmit data to the computer. When on, modem is ready to transmit data and CTS indicator +is on. When off, modem is not ready to transmit data and CTS indicator is off.</TD> +</TR> +<TR VALIGN="TOP"> +<TD COLSPAN="5"><P CLASS="note">NOTE: When S2 is on (closed), switch S3 must be off (open).</P></TD> +</TR> +<TR VALIGN="TOP"> +<TD>6</TD> +<TD>Data set ready<BR>(DSR)</TD> +<TD>107/CC</TD> +<TD>-</TD> +<TD>From VT102:<BR>When DSR is on: +<UL> +<LI>DSR indicator is on</LI> +<LI>Modem connects to a communication line</LI> +<LI>Modem is ready to use modem control signals.</LI> +</UL> +When DSR is off: +<UL> +<LI>DSR indicator is off</LI> +<LI>Terminal performs a disconnect.</LI> +</UL></TD> +</TR> +<TR VALIGN="TOP"> +<TD>7</TD> +<TD>Signal ground<BR>(SGND)</TD> +<TD>102/AB</TD> +<TD>-</TD> +<TD>SGND is common ground reference potential for all connector signals except protective +ground. SGND connects to protective ground conductor.</TD> +</TR> +<TR VALIGN="TOP"> +<TD>8</TD> +<TD>Receive line signal detector<BR>(RLSD)</TD> +<TD>109/CF</TD> +<TD>-</TD> +<TD>To VT102:<BR>Also called carrier detect, RLSD is on when communication line signals +are good enough to receive data from computer. When off, terminal is transmitting data +to computer or modem is disconnected from communication line; data received is ignored.</TD> +</TR> +<TR VALIGN="TOP"> +<TD>12</TD> +<TD>Secondary receive line signal detector<BR>(SRLSD)</TD> +<TD>122/SCF</TD> +<TD>S4</TD> +<TD>To VT102:<BR>Also called secondary carrier detect, SRLSD is on when transmitting data +to computer. When off, terminal is receiving data from computer or modem is disconnected +from communication line.</TD> +</TR> +<TR VALIGN="TOP"> +<TD>19</TD> +<TD>Secondary request to send<BR>(SRTS)</TD> +<TD>120/SCA</TD> +<TD>S8</TD> +<TD>From VT102:<BR>When switch S8 is on (closed), SRTS is on if terminal is ready to +receive characters and off if terminal is transmitting characters.</TD> +</TR> +<TR VALIGN="TOP"> +<TD COLSPAN="5"><P CLASS="note">NOTE: Switch S5 must be off (open).</P></TD> +</TR> +<TR VALIGN="TOP"> +<TD>20</TD> +<TD>Data terminal ready<BR>(DTR)</TD> +<TD>108.2/CD</TD> +<TD>-</TD> +<TD>From VT102:<BR>DTR is on when terminal is on-line and off when terminal is +off-line or performing a disconnect. When on, modem can usually answer calls +(modem auto answer option). When off, modem usually disconnects and does not +answer calls.</TD> +</TR> +<TR VALIGN="TOP"> +<TD>23</TD> +<TD>Speed select<BR>(SPSD)</TD> +<TD>111/CH</TD> +<TD>S10</TD> +<TD>From VT102:<BR>SPSD is on when receive speed SET-UP feature selection is greater +than 600 baud. SPSD is off when speed is 600 baud or less.</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"> </TD> +</TR> +</TBODY> +</TABLE> +<DIV CLASS="navbot">http://vt100.net/docs/vt102-ug/table6-8.html</DIV></DIV> +</BODY> +</HTML> |