[Elecraft] KIO2 and serial keying

[HEMBREE at asu.edu]

Fred - kt5x wrote:
"The KIO2 uses pin 2 and pin 3 for RXD and TXD communication with the radio, 
and pin 5 for the ground connection.

1) Can I use pin 7, on the KIO2 labeled RF but appears that nothing is 
connected to it, to drive transistor keying of the radio instead of the 
parallel port?  

2) Will N1MM recognize the same com port for keying that it is using to talk 
to the radio?"

I've done what you're talking about with CT but not N1MM.  

I just checked the configuration menu in N1MM and found that you can only use 
pin 4 for CW, but you can use either pin 4 or 7 for PTT.  From the config menu 
it appears that you can use the same serial port for communication with the 
radio and keying/PTT.  Try it out and see what happens.

73
Gary, N7IR
K2 1078, 2154, 3463