<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML ><HEAD ><TITLE >System Requirements</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Reliance LG LSP 340 Series WLL Modem Setup HOWTO" HREF="index.html"><LINK REL="PREVIOUS" TITLE="Introduction" HREF="sect_01.html"><LINK REL="NEXT" TITLE="Activating Internet Services on your Handset" HREF="sect_03.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" >Reliance LG LSP 340 Series WLL Modem Setup HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sect_01.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sect_03.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="sect1" ><H1 CLASS="sect1" ><A NAME="sect_02" ></A >2. System Requirements</H1 ><P >You will need a GNU/Linux system with a kernel having PPP support pre-compiled. I have tested that both the 2.4.29 kernel and the 2.6.x series kernel work fine. Performance seems to be better using a 2.6.x kernel. If you see that some kernel modules are missing then configure and recompile the kernel with PPP support.</P ><P >Check with <A HREF="sect_04.html" >Section 4</A > for the configuration of PPP.</P ><P >A connecting serial cable which has on one end an RJ-45 connector which plugs into the phone and on the other end has an RS-232 serial connector which is plugged into the serial port of the PC.</P ><P >I built my cable myself. I used a CAT 5 cable which has four pairs of UTP copper. CAT 5 cable is the same cable which is used for networking your system to a LAN. While you can use any type of cable, CAT 5 will assure a good quality of the signal that is sent over the wire. A typical configuration looks like this:</P ><P >RS-232C Serial Female connector, which is plugged into the PC:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" > ___________________ \ / \ 5 4 3 2 1 / \ 9 8 7 6 / \___________/ </PRE ></FONT ></TD ></TR ></TABLE ><P >Now let's start with the PIN Configuration</P ><P ></P ><UL ><LI ><P >PIN 1 - White Brown cable</P ></LI ><LI ><P >PIN 2 - Blue cable</P ></LI ><LI ><P >PIN 3 - White Green cable</P ></LI ><LI ><P >PIN 4 - Green cable</P ></LI ><LI ><P >PIN 5 - White Blue cable</P ></LI ><LI ><P >PIN 6 - Brown cable</P ></LI ><LI ><P >PIN 7 - White Orange cable</P ></LI ><LI ><P >PIN 8 - Orange cable</P ></LI ><LI ><P >PIN 9 - Leave empty (we are only using 8 pins)</P ></LI ></UL ><DIV CLASS="note" ><P ></P ><TABLE CLASS="note" WIDTH="100%" BORDER="0" ><TR ><TD WIDTH="25" ALIGN="CENTER" VALIGN="TOP" ><IMG SRC="../images/note.gif" HSPACE="5" ALT="Note"></TD ><TH ALIGN="LEFT" VALIGN="CENTER" ><B >Serial connection details</B ></TH ></TR ><TR ><TD > </TD ><TD ALIGN="LEFT" VALIGN="TOP" ><P >Three strings would be enough for a serial connection, but it turned out that the signal is better when you use 5. The other strings are used for extra rigidness and support of the cable.</P ></TD ></TR ></TABLE ></DIV ><P >Now on to the RJ-45 connector, which is plugged into the WLL Phone RJ-45 jack:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" > [8 7 6 5 4 3 2 1] ---- - </PRE ></FONT ></TD ></TR ></TABLE ><P ></P ><UL ><LI ><P >1 - White Orange</P ></LI ><LI ><P >2 - Orange</P ></LI ><LI ><P >3 - White Green</P ></LI ><LI ><P >4 - Blue</P ></LI ><LI ><P >5 - White Blue</P ></LI ><LI ><P >6 - Green</P ></LI ><LI ><P >7 - White Brown</P ></LI ><LI ><P >8 - Brown</P ></LI ></UL ><DIV CLASS="tip" ><P ></P ><TABLE CLASS="tip" WIDTH="100%" BORDER="0" ><TR ><TD WIDTH="25" ALIGN="CENTER" VALIGN="TOP" ><IMG SRC="../images/tip.gif" HSPACE="5" ALT="Tip"></TD ><TH ALIGN="LEFT" VALIGN="CENTER" ><B >How to hold the connector</B ></TH ></TR ><TR ><TD > </TD ><TD ALIGN="LEFT" VALIGN="TOP" ><P >If you are confused as to which way to hold the connector, make sure that you are holding the connector in such a way that its notch pin is facing towards the floor and that the open portion (portion from where the wires enter) is facing away from you.</P ></TD ></TR ></TABLE ></DIV ></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="sect_01.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="sect_03.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Introduction</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Activating Internet Services on your Handset</TD ></TR ></TABLE ></DIV ></BODY ></HTML >