K3S RS232 "Y" Connector causing port conflict

[charles-2]

 

How easy this would have been if Elecraft had made it possible for the
K3S to communicate with the computer through the USB port _AND_
communicate to the amplifier through the RS232 Port at the same time. As
I understand it, you can use the RS232 port, or the USB port, but not
both.

Thanks everyone.

Charles

 
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[Eric Swartz - WA6HHQ]

Hi Charles,

When the K3S is using the USB comm port for talking bi-directionally  to the
computer, is is also echoing the K3S reply data out the RS232 port for
Amplifiers, Steppir antenna controllers etc to listen to for band and frequency
information.

73,

Eric
/elecraft.com/

On 12/14/2015 2:24 PM, [hidden email] wrote:

>  
>
> How easy this would have been if Elecraft had made it possible for the
> K3S to communicate with the computer through the USB port _AND_
> communicate to the amplifier through the RS232 Port at the same time. As
> I understand it, you can use the RS232 port, or the USB port, but not
> both.
>
> Thanks everyone.
>
> Charles
>
>  
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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[Josh Fiden]

Charles,

At this point, it seems like a silly question. BUT... have you tried
connecting it as the manufacturer (OM-POWER) suggests? If so, what happened?

So far we know that you have tried using some Y-splitter on the RS-232
line. It didn't work, and Don provided a clear and detailed explanation
why that was the case.

Serial data is echoed bidirectionally through the OM2500A. There is no
"listen only" mode that I'm aware of. RTS and DTR are hardwired straight
through.

73,
Josh W6XU
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[Eric Swartz - WA6HHQ]

If you need to block the TX lines from the amp to the K3 (or from the amp to the
P3's computer connection if that is also in the system) making a custom cable or
taking a M-F 9 pin adapter with the proper pins broken off can make it easy.)

The key thing to remember with RS-232 is that while you can usually have
multiple devices listening to a path, only one can transmit.

73,

Eric
/elecraft.com/

On 12/14/2015 5:13 PM, Josh Fiden wrote:

> Charles,
>
> At this point, it seems like a silly question. BUT... have you tried
> connecting it as the manufacturer (OM-POWER) suggests? If so, what happened?
>
> So far we know that you have tried using some Y-splitter on the RS-232 line.
> It didn't work, and Don provided a clear and detailed explanation why that was
> the case.
>
> Serial data is echoed bidirectionally through the OM2500A. There is no "listen
> only" mode that I'm aware of. RTS and DTR are hardwired straight through.
>
> 73,
> Josh W6XU
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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