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GND connectsion for Power Over Ethernet (PoE) Reference

Posted: Mon Mar 12, 2012 7:24 am
by markadamdonkers
Hello. We want to leverage Netburner's Power Over Ethernet (PoE) reference design found at http://www.netburner.com/power_over_ethernet.html with our MOD5270.

My question is, are the "ETH_GND" and "GND" nets to be treated as separate grounds or can they be connected?

Thanks for any assistance.

~ Mark

Re: GND connectsion for Power Over Ethernet (PoE) Reference

Posted: Mon Mar 12, 2012 10:42 am
by pbreed
The are connected internally on the MOD5270-200
Connecting them externally will cause a ground loop.

Re: GND connectsion for Power Over Ethernet (PoE) Reference

Posted: Mon Mar 12, 2012 12:36 pm
by markadamdonkers
Thank you for the reply.