[Elecraft] KAT100 and serial cable question

[Leigh L. Klotz, Jr.]

I've recently built at KAT100 to use with my HFPacker amplifier and K2.

I know not to use a pre-made serial cable to connect the KIO2 to a computer.

However, looking at the schematic for the KAT100 and J3, it looks like a 
regular serial cable would work fine between the KAT100 and the K2, if 
we leave the computer out of the picture.  Has anyone done this? 

Leigh / WA5ZNU