topic Re: Outdoor WAP 1542 grounding necessary or recommended in Wireless

Outdoor WAP 1542 grounding necessary or recommended

adeebtaqui — Tue, 30 May 2023 17:03:51 GMT

Kindly advise if attached Outdoor AP installation by our installation team which I recently found to be done without grounding of WAP is correct or not.

We had few cases of WAP to loose POE physical connection to switch and onsite cable team found some patch cord or outlet burnt/damaged and replaced them and WAP was back online.

As per below best practice video and install guide grounding is needed.

Pls advise if this grounding needs to be done for attached installation type on external side outdoor wall of warehouse.

https://www.cisco.com/c/en/us/td/docs/wireless/access_point/outdoor/video/ap-best-practices.html

https://www.cisco.com/c/en/us/td/docs/wireless/access_point/1540/installation/guide/1540hig/ch2.html#99030

Re: Outdoor WAP 1542 grounding necessary or recommended

Flavio Miranda — Tue, 30 May 2023 17:45:45 GMT

I´d say it is recommended. But, if that structure behind the AP is metal, I´d say that could be grounded.

Re: Outdoor WAP 1542 grounding necessary or recommended

Leo Laohoo — Wed, 31 May 2023 00:19:39 GMT

If the AP is outdoors, ground it.

We have a lot of dead 1560 because the installers refuse to install the ground. Whenever there is a severe thunderstorm the EMP will fry the components inside.

Re: Outdoor WAP 1542 grounding necessary or recommended

Rich R — Wed, 31 May 2023 05:52:07 GMT

Those coiled cables in your photos - they will act as antenna amplifying any signal and possibly increasing risk of lightning strike - use correct length patch leads without coils!
Can't see clearly - are those outdoor rated sockets? I hope not regular RJ45?

Re: Outdoor WAP 1542 grounding necessary or recommended

adeebtaqui — Wed, 31 May 2023 11:02:31 GMT

The socket and patch cord are not outdoor rated.

Re: Outdoor WAP 1542 grounding necessary or recommended

adeebtaqui — Wed, 31 May 2023 11:07:43 GMT

@Flavio Miranda @Leo Laohoo @Rich R

The socket/outlet and patch cord are not outdoor rated.

One of our local wireless experts advised that if outdoor WAp 1542 is having POE from switch then grounding switch would be enough and its not a must for grounding each outdoor WAP.

Kindly advise what is the best way on this and if ground is not necessary.

Or Need someone with expertise on electrical grounding to advise on this

Re: Outdoor WAP 1542 grounding necessary or recommended

Leo Laohoo — Thu, 01 Jun 2023 04:40:03 GMT

@adeebtaqui wrote:
Kindly advise what is the best way on this and if ground is not necessary.

We are saying, unanimously, ground the AP. What more are you asking for?

If you do not want to ground the APs, then don't. However, make sure to have valid Service Contract to RMA the APs when they get fried after a thunderstorm.

Re: Outdoor WAP 1542 grounding necessary or recommended

Flavio Miranda — Wed, 31 May 2023 11:20:10 GMT

No need for Electrical expert advise. Just go to the Access Point installation guide and see this:

https://www.cisco.com/c/en/us/td/docs/wireless/access_point/1540/installation/guide/1540hig/ch2.html#99030

Section "Grounding the Access Point"

Grounding is like Insurance, better have than not.

By the way, this AP is wrongly installed if they are in vertical fashion as it seems in the picture. AP with omni-directional antenna should be installed horizontally above the coverage area.

Re: Outdoor WAP 1542 grounding necessary or recommended

Rich R — Wed, 31 May 2023 11:27:24 GMT

> The socket and patch cord are not outdoor rated.

Well that's just asking for trouble! Water WILL get into the connections and cause short circuits and signal degradation.

Re: Outdoor WAP 1542 grounding necessary or recommended

eglinsky2012 — Wed, 31 May 2023 13:38:41 GMT

Agreed, the indoor-rated socket and patch cord are not good. Move the jack inside and send an outdoor-rated patch cable through the wall to the AP and use the gland that comes with the AP to keep the water away from the port per the instructions. We like to leave a slight droop in the cable so the cable is the lowest point and water drips off the cable instead of (potentially) seeping through the gland or building penetration.