Finding an RS-232 port on the K3

[PHILIP GRAITCER]

I have a K3, that has been upgraded with the addition of a KIO3B. I have a USB cable going from the K3 to my computer, and the RS-232 RJ45 jack has the Elecraft Y-type cable going from it to both connections on the P3.

I have a Microbit AS-1289, web based antenna switch with an RS-232 output. The manufacturer says that if I connect up this output to the K3 RS-232 port, the antenna switch will automatically follow the transceiver bandswitching. That would eliminate my need for manually switching the switch on the web. (I am in the process of remoting the station using remotehams.)

Has anyone on the list had experience creating a Y cable for the RS-232? Or is there some other solution? I had thought about using the AUX connector on the K3 for the band change signals, however, the manufacturer says what I need is an RS-232.


Phil, W3HZZ



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[Don Wilhelm]

Phil,

A "Y" cable on the RS-232 path will do that for you.
The real physical connection place for the "Y" cable depends on whether
you have the P3 or not.

If you do NOT have the P3, you may not need the "Y" cable - Plug the
cable from your Microbit to the RJ-45 to DB-9 dongle that comes with the
KIOXB (you may need a gender changer).

If you DO have the P3. connect the "Y" cable to the "PC" DB9 on the P3
and connect the Mircobit cable into one side of the "Y" cable, and plug
the CBLP3Y cable that normally would connect to the P3 PC connector into
the other side of the "Y" cable.

73,
Don W3FPR

On 5/21/2017 1:03 PM, PHILIP GRAITCER wrote:
> I have a K3, that has been upgraded with the addition of a KIO3B. I have a USB cable going from the K3 to my computer, and the RS-232 RJ45 jack has the Elecraft Y-type cable going from it to both connections on the P3.
>
> I have a Microbit AS-1289, web based antenna switch with an RS-232 output. The manufacturer says that if I connect up this output to the K3 RS-232 port, the antenna switch will automatically follow the transceiver bandswitching. That would eliminate my need for manually switching the switch on the web. (I am in the process of remoting the station using remotehams.)
>
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