Proper Grounding/Lighting Protection

wifiwizard
Member
 
Posts: 8
Joined: Fri Dec 08, 2017 1:27 pm
Has thanked: 0 time
Been thanked: 0 time

Proper Grounding/Lighting Protection

Wed May 02, 2018 2:26 pm

I want to try to confirm proper grounding/lighting protection when using the Netonix Wisp Switch.

We have just started using WS-12-250-DC and ground using the front ground screw. We are also using L-Com rack mounted lighting protection. This model. We have the main Cat5e line from the radio coming down into the enclosure then running into the lighting protection first. We then jumper out of the lighting protection and connect into the switch. We then have an optical fiber going from the switch into the router for further isolation. Both lighting protection and grounding are sharing the same ground bus.

Is this good practice? Is it overkill for California where we never get lighting? Are we doing anything wrong? Thank you for any help.
Attachments
rack.jpg

User avatar
sirhc
Employee
Employee
 
Posts: 7347
Joined: Tue Apr 08, 2014 3:48 pm
Location: Lancaster, PA
Has thanked: 1597 times
Been thanked: 1317 times

Re: Proper Grounding/Lighting Protection

Wed May 02, 2018 2:37 pm

99% of all WISP equipment damage is from ground current (I own a WISP)


Here are some good posts on grounding:
http://forum.netonix.com/viewtopic.php? ... 279#p19279
http://forum.netonix.com/viewtopic.php?f=30&t=1816
http://forum.netonix.com/viewtopic.php?f=30&t=188
http://forum.netonix.com/viewtopic.php? ... =30#p13447
http://forum.netonix.com/viewtopic.php?f=30&t=1429

Read the posts above but the basics are as follow (VERY IMPORTANT):
Tower ground rods must be bonded to electrical service ground rods HEAVY #2 wire.
I always add 1 or 2 “new” ground rods to older existing electrical services.
Also Ethernet surge protectors should not be used with passive POE switches like Netonix and Ubiquiti because they work by clamping all 8 wires together in the vent of a surge which is a dead short and will damage the switch port and or the whole switch.

99% of WISP equipment damage is from ground current NOT ESD or direct strikes.

It's all in the GROUNDING.

READ THE POSTS ABOVE
Take out the Ethernet surge protectors.

I would NOT use Ethernet surge protectors on "passive" POE switches / devices. What they do is clamp all 8 wires together and to earth ground which is a dead short which will fry the Ethernet port in the switch.

http://forum.netonix.com/viewtopic.php? ... ors#p21938
http://forum.netonix.com/viewtopic.php? ... ors#p21629
http://forum.netonix.com/viewtopic.php? ... ors#p20773
Support is handled on the Forums not in Emails and PMs.
Before you ask a question use the Search function to see it has been answered before.
To do an Advanced Search click the magnifying glass in the Search Box.
To upload pictures click the Upload attachment link below the BLUE SUBMIT BUTTON.

Return to General Discussion

Who is online

Users browsing this forum: No registered users and 23 guests