ACC-Cable Ground?

[Martin-2]

Elecrafters,
i'm in the process of making a cable for the K3's ACC-socket.
I 'm not sure how to correctly connect to ground.

There is a Pin labeled ground, should i solder it to the shield?
Should i solder the shield to the shell of the plug?
If yes, both ends?

Martin

--

73, DM4iM
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[Jim Brown-10]

On Fri, 26 Mar 2010 13:13:39 +0100, DM4iM wrote:

>I 'm not sure how to correctly connect to ground.

The proper termination of a cable shield is ALWAYS the chassis. It's
possible to solder to DB15 and DB9 shells, but it can be a bit
tricky. You must first find a point where a wire to the shell will
allow the connector cover to fit (usually at a corner), tin that
point (and perhaps scrape non-solderable coating from it) and leave
some solder on it, shape the shield wire carefully to fit with the
connector cover, then solder it.

73,

Jim Brown K9YC



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[Joe Subich, W4TV-4]

With the ACC connector one needs to connect the shield/common
to both pins 5/12 and the shell.  Pins 5/12 are not connected
to the "frame ground" on the D-Sub board according to the
January 2010 schematics.  

73,

   ... Joe, W4TV
 

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Jim Brown
> Sent: Friday, March 26, 2010 12:11 PM
> To: elecraft
> Subject: Re: [Elecraft] ACC-Cable Ground?
>
>
> On Fri, 26 Mar 2010 13:13:39 +0100, DM4iM wrote:
>
> >I 'm not sure how to correctly connect to ground.
>
> The proper termination of a cable shield is ALWAYS the chassis. It's
> possible to solder to DB15 and DB9 shells, but it can be a bit
> tricky. You must first find a point where a wire to the shell will
> allow the connector cover to fit (usually at a corner), tin that
> point (and perhaps scrape non-solderable coating from it) and leave
> some solder on it, shape the shield wire carefully to fit with the
> connector cover, then solder it.
>
> 73,
>
> Jim Brown K9YC
>
>
>
> ______________________________________________________________
> 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

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[Jim Brown-10]

On Fri, 26 Mar 2010 17:37:57 -0400, Joe Subich, W4TV wrote:

>With the ACC connector one needs to connect the shield/common
>to both pins 5/12 and the shell.

Not necessary -- the circuitry that drives those pins IS referenced to the
chassis, so from a LF signal point of view, connections to pins 5/12 is un-
necessary, and can actually set up a mild pin 1 problem.

73,

Jim K9YC



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