Christopher Intemann wrote:

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> Hi,

> thanks for the hint, however, I'm in fact a bit more confused now:-)

> Couldn't I use such a thing:

> http://cgi.ebay.de/SERIAL-RS232-DB9-9-PIN-FEMALE-TO-RJ45-FEMALE-ADAPTOR_...

Yes
> In addition, I would then only need a RJ45 serial cable. Or an ordinary

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> telephone cable with 4 wires, right?

Yes
Let me put it this way.
din 9 pin to your laptop, or what ever.
RJ45 plug at the other end.
Plus what ever you want in between to plug the two together. (;>