Speaking serial out RJ-45 jack

Richard Esplin richard at esplins.org
Fri Mar 27 18:46:29 MDT 2009


Thank you for the clarification.

Richard

On Friday 27 March 2009 17:48:40 Nicholas Leippe <nick at leippe.com> wrote:
> On Fri Mar 27 2009 17:35:47 Richard Esplin wrote:
> > I need to talk to a Cisco 2600. It has an RJ-45 jack on it, and it comes
> > with an RJ-45 to D9 cable. My laptop does not have a D9 serial port.
> >
> > I know that I can buy a USB to serial dongle.
> >
> > However, in theory I can just tell my computer to speak serial out my
> > ethernet port.
>
> No, in theory and in practice, you can't. They are totally different
> electrical specifications.
>
> > I understand that I can get software that lets me transmit serial over
> > ethernet to another machine which will then send it out the serial port.
> > That isn't exactly what I want.
>
> I'm not sure of to what you're referring here, but like you said, it's not
> relevant.
>
> > Any ideas?
>
> You need an actual serial port. A USB serial port device will do it.
<snip>




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