Use a cheap phone sync cable with the serial port
What do i need?
1) We organized some futuredial phone sync cables mentioned at http://www.nslu2-linux.org/wiki/HowTo/AddASerialPort Section "USB-Connection". These phone sync cables are quite cheap at ebay. you can buy any other cable mentioned at that wikipage...the only difference will be the color coding of the cables.
OR: buy some from here: http://cgi.ebay.de/PolarLink-USB-Datenkabel-Siemens-C25_W0QQitemZ220086930396QQihZ012QQcategoryZ111305QQrdZ1QQssPageNameZWD1VQQcmdZViewItem here is the pinout:
Quotation from http://www.nslu2-linux.org/wiki/HowTo/AddASerialPort:
Most of the cheap cables are based on a Prolific PL2303 chipset (PL2303 datasheet ) which is supported under Windows (Driver Download) and Linux. A third party Nokia data cable for a 8000 series phone has been used with no problems. A data cable from the Siemens C25/35/45 works too. The cables from the old models (i.e. C25) costs a 2..3$.
Comment: Find many more pinouts at http://www.nslu2-linux.org/wiki/HowTo/AddASerialPort
2) You will also need an old USB-plug (Female, Type A). I used two from USB-extender-cables and the rest from female-USB-connectors that i directly ordered in a shop.
3) you will also need something as thick as 1 mm. This can be wood, plastic or the latest flyers you collected by going out at the weekend. We used a Eurocard which we broke in Pieces (4 rows * 9 holes)
What to check first
Open the dongle in the middle of the cable to check if the profilic chip is used. You need to check the color coding of the wires. Best would be to just leave the dongle open. In my example here we have the color coding for the FutureDial-Cables. If you have a different one check http://www.nslu2-linux.org/wiki/HowTo/AddASerialPort for the color coding.
Open the phone connector of the cable
Prepare the USB-Plug
If you are using one from an extender cable
Best would be to use a grinder. Do not hesitate to destroy the cables. It is recommended to remove everything so that you can solder the cables from the phonesync-cable directly to the pins.
If you have bought the part directly
Just open the metal-case and use a grinder to make it look like the picture above. You won`t have to remove any glue or cables.
Prepare the phone sync cable
Solder the phone sync cable to the USB-plug
You will have both read and write access if you solder it that way.
In this picture: Green is GND, Yellow is RX (as in "data entering the LSPro") and Orange is TX (as in "data coming from the LSPro"). The not connected terminal is VCC.
Checking the cable/plug
Best with a Voltmeter. To go completely safe test from the pins for the yellow + orange cables on top of the profilic chip. The green one + shield can be tested from the pin on the other side.
You need a Windows driver for the Prolific USB-to-Serial adaptor, available at the Prolific Technology Inc Support Site. The cable will show up as COM4.
Plug the USB connector into your Linux box. Start minicom and set the port to /dev/ttyUSB0 115200 8N1. Power up and you will see a '+' printed.
Cable is confirmed to work...here, hyperterminal is used in WinXp
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