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Keyboard with P21Forth


On Sun, 11 Dec 1994, Jeff Fox wrote:

> VIDEO+SERIAL will vector system output to both video and serial.  This
> will require that bit 0 of output is tied to the rs232 input on the
> other device.  Also ground the rs232 connection.
> So you need three wires to a db25 or db9 to a serial port.

Does this mean, that no 12V-5V converters are required? Can I just 
connect IN0 to TD, OUT0 to RD, and Gnd to SG? 

--
Penio Penev <Penev@venezia.Rockefeller.edu> 1-212-327-7423