<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML ><HEAD ><TITLE >Null Modem Cable Connection</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Linux Infrared HOWTO" HREF="index.html"><LINK REL="UP" TITLE="Specific Connections and IrDA - Protocols" HREF="infrared-howto-c-specific-connections.html"><LINK REL="PREVIOUS" TITLE="Connection via Serial Cable" HREF="infrared-howto-s-serial-cable-connection.html"><LINK REL="NEXT" TITLE="Peer-to-Peer Mode / Direct Mode" HREF="infrared-howto-s-peer-to-peer.html"></HEAD ><BODY CLASS="sect1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Linux Infrared HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="infrared-howto-s-serial-cable-connection.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 3. Specific Connections and IrDA - Protocols</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="infrared-howto-s-peer-to-peer.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="sect1" ><H1 CLASS="sect1" ><A NAME="infrared-howto-s-null-modem" ></A >3.18. Null Modem Cable Connection</H1 ><P > You may set up a connection without IrDA capable hardware, using a serial null modem cable. Just attach the IrDA ports to the serial ports, .e.g. <B CLASS="command" >irattach /dev/ttyS0 -s</B > on both machines. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="infrared-howto-s-serial-cable-connection.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="infrared-howto-s-peer-to-peer.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Connection via Serial Cable</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="infrared-howto-c-specific-connections.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Peer-to-Peer Mode / Direct Mode</TD ></TR ></TABLE ></DIV ></BODY ></HTML >