AC switches ground connected to PoE pins 7,8?

[wisphopefull]

So I just ordered my first Netonix switch (WS-10-250-AC) and it's on the way and was wondering if the Netonix AC switches AC ground pin is also connected to pins7,8?

I discovered almost 3 years ago on UBNT forum that ToughSwitch 8 Pro had the ground pin connected to pins 7,8 (negative) , but not the PoE adapters.

eejimm:

the AC neutral pin on the 8-port TS-Pro is connected to pins 7,8 and the RJ-45 ground

[Dave]

our AC ground is not tied to our POE ground...

[wisphopefull]

our AC ground is not tied to our POE ground...

When you say PoE ground you mean the RJ45 shield?

If so I asked Chris that before and he said the RJ45 shield is connected and grounded through AC cord ground (same as Toughswitch Pro)
viewtopic.php?f=6&t=1189&p=8866#p8866

[Dave]

When you say PoE ground you mean the RJ45 shield?

The AC ground is connected to the RJ45 connector shield, which is not the same as the POE power ground pins 7 & 8.

[wisphopefull]

Thanks Dave

[wisphopefull]

by the way is the grounding lug on the case connected to the AC ground or pins 7,8?

[Dave]

ac ground

[sirhc]

On AC switch models the lug is more for added safety in case the user is touching the chassis when an ESD or strike occurs but with the DC models it is imperative that you hook it up and that the ground in your box is bonded to the tower ground. You should also have a dedicated ground run to your radios that is less resistance and shorter path to earth ground than your Ethernet cables.

Do not use wire or connectors that are too large as you may pull the lug from the chassis.
10 AWG is really too big, 12 AWG and a crimp end is preferred


Read these posts on grounding practices:
viewtopic.php?f=30&t=188
viewtopic.php?f=30&t=1429