Any time you separate transmitters & receivers by any distance, you have
the "potential" to have grounds at different potentials (I did not
really intend that pun, but it works).
So, often, it is a wise choice to ground at one end, but not the other.
This retains most of the shielding without causing current on the ground
leg(s).
bp
<part15sbs{at}gmail{dot}com>
On 1/22/2018 9:11 AM, Jay Weekley wrote:
Different grounds can cause a problem. Are the house and barn on
different meters?
Christopher Gray wrote:
I have a customer with bizarre issues. I've replaced almost
everything but odd issues keep coming back.
The customer has a 100' run of Ethernet cable from the house to the
barn, and a switch in the barn. I'm wondering if there might be an
issue with different power sources, possibly different grounds
between the router and the switch. The issues are intermittent enough
that I can't ask for them to just disconnect their barn as it is used
for work.
If I install an unpowered gigabit PoE injector in-line with that 100'
run, will that eliminate any issues with different power or different
grounds between different buildings since the buildings would be on
separate sides of the magnetics, or do I need better separation?
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
Virus-free. www.avg.com
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
