Psion FAQ

Some questions I answered several times in different forums.

1. How to use GPRS with the Psion netBook
   
2. How to connect a Psion to a Linux/Unix system
   
3. How to open the Series5 (classic and MX) case
   
4. Using JavaPsionLink to connect a Psion to whatever :-)
   

1. How to use GPRS with the Psion netBook
   Contrary to this article I did not use any additional software. I use the Ericsson 520m. My modem settings are:
   

   Connect via:	Infrared
   Initialisation:	ATZ
   Flow control:	Hardware
   Terminal Detect:	On
   Carrier detect:	On
   Modem type:	Mobile

   The Flow control setting 'Hardware' is important. Software does not work (the connection seems to be established, but no data transfer is possible.
   Internet service settings according to your service provider. Dial-in number is essential:
   

   Connection type:	Dial-up
   Standard dial-up number:	*98*1#

   This diap-up number tells the phone to activate the first set of connection settings (replace '1' with the correct number for your setup if you have multiple connections defined on your phone). Therefore it should be clear that the internet connection settingson the phone must already be configured for this to work.
   Take a look at the (german) document at http://www.palmtop-pro.com/tips/tips0109.htm for a detailed explanation of different settings for different service providers.
2. How to connect a Psion to a Linux/Unix system
   Linux configuration:
   • Install pppd.
   • Copy options.ttyS0 to /etc/ppp and edit it for your setup (IP Adresses and DNS Server might need a look).
   • Start PPPd: pppd ttyS0 Substitute any other serial device (rename the options file accordingly)
   Psion configuration:
   • Add a modem with the following parameters:
     

     Name:	Direct cable
     Speed:	115200
     Connect via:	Cable
     Initialization:	(empty)
     Flow control:	Hardware (RTS/CTS)
     Terinal detect:
     Carrier detect:
     Modem type:	Fixed Line

   • Add an Internet connection service:
     

     Name:	Linux
     Connection type:	Direct
     Get IP address from server:
     Get DNS address from server:
     Enable PPP Extensions:

   Then you should be able to connect (e.g. from Mail) using the Modem and Internetconnection defined above.
   The 'proxyarp' option in the PPPd configuration file makes the psion visible in your LAN (as long as the addresses used are in the same range as the LAN). IP forwarding must be enabled (Linux: echo "1" > /proc/sys/net/ipv4/ip_forward, Solaris: ndd -set /dev/ip ip_forwarding 1).
3. How to open the Series5 (classic and MX) case
   Take a look at this guide.
4. Using JavaPsionLink to connect a Psion to whatever :-)
   Compiling it yourself
   1. Download JavaPsionLink
   2. Download the correct javax.comm Implementation:
      
      Solaris & Windows
      Mac
      Got a Linux link to add ? Mailto:webmaster@bsg.at
      
   3. Install javax.comm by following the instructions in the file Readme.html contained in the distribution
   4. Compile JPL:
      export CLASSPATH=.; javac *.java
      Note: LocalDirectoryBrowser is missing in some ZIP distribution files. Get the Mac file, unstuff it and use the compiled file contained in jpl (which can be unpacked with ZIP).
   5. Start JPL:
      java PsionLink
   Using a precompiled version
   1. Download the JAR File (Use right mouse button, Save As)
   2. Start:
      java -jar jpl.jar
   In either case you have to configure the port to use before a connection to the device is possible.