|
Originally Posted by KapVu
|
|
How did you get the serial input to connect directly into the dock station? I want something similiar but not with all the usb and audio. I was looking how to get the serial input and power at the same time. Can you give more detail on that?
|
At PDA bottom connector you have USB CLIENT, SERIAL, VGA OUT and POWER IN.
See the pinout:
You can buy an adapter with POWER IN and SERIAL from Dell o from third party like this:
http://www.gomadic.com/brand-dell-ac...cessories.html
The problem begins when when you want to use three or all four PDA bottom ports. There is no adapter out there. Probably Aximizer is the only one! :approve:
You must also know that RS232 port is only partially implemented. SIgnals are TTL LOW levels and do not meet RS232 standards. Port must be complemented with an external circuit. Dell adaptor has circuit inside the connector, I have no idea about other adaptors. Also that circuit must be powered, I have no idea how Dell adaptor solvs it. You also must know that Dell adaptor only wired signals TX & RX, no CTS nor RTS. Aximizer cirtuit is self-powered when 5v or 12v are applied, it also has RTS/CTS signals. See the schematic at the link at first post.