Re: Shielded cable connections - help

Consider this.....

When your main concern is trying to get a
sensitive low level signal from one place
to another, ground only one end of the
shield. This is because any current flowing
in the shield can actually generate more
interference.

When the signal is high power and radiated
signal is the concern, then current flowing
in the shield is not a major problem. In
this case the shield can be used as
connected ground to prevent shock hazards.

At least that is my thinking.....

Cheers,
Steve Stallings
www.pmdx.com

--- In CAD_CAM_EDM_DRO@y..., cnc002@a... wrote:
> I have had a number of problems with shielded cable use in a data
environment
> whenever both ends of the shield are connected. If there is ANY
difference
> in potential between the two ends you end up actually causing the
> interference you are trying to shield the wires in cable from. As
to motors,
> the difference between the two ends of the shield as far as voltage
is
> concerned, would need to be rather large to cause any problems I
would think.
> However, I still think it better to connect only one end of the
shield and,
> to answer your basic question, you would connect it to a good
ground.
>
> Hope this helps some
>
> Regards,
>
> Randy Abernathy
> 4626 Old Stilesboro Road
> Acworth, GA 30101
> Phone / Fax: 770-974-5295
> E-mail: cnc002@a...
> We service, install and repair industrial woodworking machinery
> Specializing in SCM / SCMI CNC Panel Saws and Routers