sundance-communications.com/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring lighting fuse 110 block

We are currently installing a VOIP system in our main office and I have some
structured cabling concerns..

How do we prevent lighting (voltage) to not pass thru our internal cabling? Is there
a 110 block which is fused? (Fused means a 110 block with power fuse to
prevent abrupt power surge)

Here is the set up..

Phone Company block(Analog line)--> 110 block --> 110 block --> patch panel - connect to FXO card(inside telephone computer server)

OR

Phone Company block(Analog line)--> 110 block --> patch panel - connect to FXO card(inside telephone computer server)

"-->" means cross connect

Can anyone help?

Welcome to the forum.

I assume that "lighting" is a typo and that you are concerned about lightning.

The sort of protection you are looking for is provided by a device known in the industry as a protector - it is not actually a fuse, although it may contain internal parts that are fusible for reasons that are way beyond the scope of your question. To do its job properly, it must be bonded to the building electrical system ground. Here in the U.S., telephone service providers are required to install protection on all phone lines - I realize that this may not be the case in all countries, however.

See if you can find out whether your service provider installs protectors. If not, (or if you have already determined that they do not), then you should install at least primary protectors on the phone lines at the point where they enter the premises. Such protectors should be available locally or from an on-line vendor.

For safety reasons, and for the protectors to provide any benefit at all, they must be bonded to the building's electrical system ground. If you have never installed such bonding, it would be best to hire a local electrician to install it for you.

"Primary" protectors will provide the protection required to prevent shock and fire hazards in the event of a lightning strike or other surge. They will not necessarily protect sensitive electronics from damage. For this you will need "secondary" protection, which can be in the form of an outlet strip/surge protector with phone line protection built in. The quality of these units varies widely, and there are many people on here who will only use certain models. Please note that the secondary protection is installed in addition to the properly bonded primary protection - the secondary protection is optional, the primary is not.

Also, I forgot to mention that you should consult your local codes concerning things like grounding and bonding - the advice given above may not be in compliance with the laws outside the U.S.

Jim
**************************************************
"I don't want to hear the lizard story, Sergeant!"
"Sir! Yes, sir!"

We use these on the incoming CO lines as well as all the station runs on our Toshiba CTX:

https://powercom-oneac.com/line-protectors.html

See the 6 series!

I am a big fan of these ITW Linx Protectors.

Tower Max 8CO

I have not had any problems with these. They power strip adapters are polarity sensitive so you want to make sure the plug is wired properly.

You will want to cross connect the lines in and then out of the protector before wiring them into the phone system.