[Elecraft] Connections for K3S, P3 Revisited

[Byron Peebles]

Let me summarize my tests in hope someone has an idea.

1. I have followed the instructions.
2. I am using the proper cable.
3. As far as I know.

It seems simple.

1. Set K3S CONFIG:RS232 to USB. Connect USB between computer and K3S.  
[CHECK]
2. Connect CBLP3Y to P3 (top+bottom) and K3S RJ-45 Serial. [CHECK]
3. The COM Port assigned and working in Step #1 no longer works.

4. Repeat step #2, only connecting the lower connection to the P3. No joy.
5. Repeat step #2, only connecting the upper connection to the P3. No joy.
6. Repeat step #2, only connecting the RJ-45 and nothing on the P3. COM 
for #1 works.

7. When I use a PC-to-K3S USB and a PC-to-P3 USB those conenctions are 
fine, but the CBLP3Y is an issue.

Is there some magic setting I'm missing?

73, Byron

On 09/25/2015 09:29 PM, Byron Peebles wrote:
> I have had the K3S, KAT500 and KPA500 connected and configured.
> All units are connected to the computer via USB so I can use the 
> appropriate Utility.
>
> Now, when I try to connect the P3 to the K3S there is this behavior.  
> I can only use the USB *or* the RJ45 serial.  Once I connect to the 
> RJ-45 serial, the USB is disconnected at the K3S and I lose access to 
> the COM port(s).
>
> I am guessing there is no value to the RJ-45 port once I decide to use 
> USB, and I should use the USB-DB9 connector to connect the P3 to my PC 
> for the P3 Utility.
>
> I thought I had seen something where the PC connected through the K3S 
> or P3 to the otyher, but I can't find that documented so I think it's 
> recovered childhood memory.
>
> I