K3S RS232 "Y" Connector causing port conflict

[charles-2]

 

One more question Eric.

If I need to block the TX lines from the amplifier to the K3, which pins
should I break off of the male DB-9 connector?

Thanks again for your help.

Charles K5UA

 
______________________________________________________________
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]

[Don Wilhelm-4]

I am not Eric, but the pins are 1, 2, 6, 8 and 9 - those all might have
drivers in the amplifier.

I would suggest that you not break off the pins unless you have a cable
with formed and sealed backshells.  If you can open the backshell, just
cut the wires on the 'backside' of the connector.

73,
Don W3FPR

On 12/15/2015 7:03 PM, [hidden email] wrote:

>  
>
> One more question Eric.
>
> If I need to block the TX lines from the amplifier to the K3, which pins
> should I break off of the male DB-9 connector?
>
> Thanks again for your help.
>
> Charles K5UA
>
>  
> ______________________________________________________________
> 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]
>

______________________________________________________________
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]

[Josh Fiden]

The pins are normally pressed into the connector. If you can open it,
you can usually pull them out. That way you can test non-destructively.

OM2500A only uses RxD, TxD. It does not assert any other lines. RTS &
DTR are wired straight through, I haven't checked DSR & CTS for continuity.

I can stop posting *correct* information about this amplifier at any
time, since it appears to be ignored. I thought it would be useful since
I actually *own* this amp and use it with a K3 and computer. Apparently not!

73,
Josh W6XU

On 12/15/2015 4:18 PM, Don Wilhelm wrote:
> the pins are 1, 2, 6, 8 and 9 - those all might have drivers in the
> amplifier.
>
> I would suggest that you not break off the pins unless you have a
> cable with formed and sealed backshells.  If you can open the
> backshell, just cut the wires on the 'backside' of the connector.

______________________________________________________________
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]

[Don Wilhelm-4]

Josh,

You should not refrain from posting information about this amplifier and
its characteristics.
Perhaps I have monopolized the conversations with basic information
about RS-232 and its characteristics (and limitations), but I know
nothing about that specific amplifier.  I can only talk about RS-232 and
its implications to the K3/K3S.
Since you have experience with that particular amplifier, then your
comments can be valuable.  What did you do to make it work with the K3/K3S?

73,
Don W3FPR

On 12/15/2015 8:44 PM, Josh Fiden wrote:

> The pins are normally pressed into the connector. If you can open it,
> you can usually pull them out. That way you can test non-destructively.
>
> OM2500A only uses RxD, TxD. It does not assert any other lines. RTS &
> DTR are wired straight through, I haven't checked DSR & CTS for
> continuity.
>
> I can stop posting *correct* information about this amplifier at any
> time, since it appears to be ignored. I thought it would be useful
> since I actually *own* this amp and use it with a K3 and computer.
> Apparently not!
>
> 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]