Ottawa Canada

You can buy null model adapters in both 9 and 25 pin.  Your local
Radio Shack probably has them in stock or can get them for you.

The RS-232-C spec specifies the electrical signals used in a
serial port and NOT the type of connectors used.  And just to
make things interesting, in the back of the spec, they show 22
different wiring schemes for serial ports!

By convention, a DTE or data terminal equipment has a male
connector on it and a DCE or data communication equipment has a
female connector.

So to connect two DTE or DCE you need a null modem adapter or
cable in the circuit somewhere.

Hope I haven't confused everyone hopelessly!

Brian

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