[Elecraft] K3S USB RS232 P3 Conundrum

[tom at k5rc.com]

Just put my first K3S on line, replacing a K3. For the moment, I am using
the E980297 cable to go to the P3 and then the P3 to the computer. 
I also have a Y at the computer with a cable going to the CAT input to the
Acom 2000A amplifier. Acom says they get serial data from pins 1 and 5, but
the logging program is what talks to the Acom. I have not figured out the
ramifications of this, but I am temporarily not using the K3CAT feature with
the Acom as it has not been reliable.
 
So, If I wanted to use the USB interface to take advantage of the sound
board options, I could use the CBLP3Y for the P3. But how can I communicate
with the Acom?
Gotta figure this out before I have three K3S talking to three Acom 2000A's
and three P3's!
 
Tom Taormina, K5RC
Comstock Memorial Station, W7RN
Storey County ARES, KS7AA
www.w7rn.com <http://www.w7rn.com>