[Elecraft] Connections for K3S, P3 Revisited WORKAROUND

[Byron Peebles]

I found a workaround by using the Elecraft RJ-45-to-Serial cable and a 
separate PC-to-P3 USB-to-serial.
I am uncertain how to test the RJ-45-to-Serial cable, but at least it no 
longer "breaks" my K3S to PC USB.

Data Terminal Mode in the P3 seems like a secret, but I'm hunting for it 
now.  73, Byron

On 09/26/2015 03:28 PM, Byron Peebles wrote:
> 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.
>>