You are assuming that protector and protection are same.
Protectors are only effective when they connect but a few
meters to protection. Some protection systems - not all -
require protectors. But all protection systems require one
essential component - the single point earth ground.
To sell protectors that don't protect from the typically
destructive type of transient, the manufacturer must avoid all
mention about earthing. Therein lies one key symptom of an
ineffective protector.
In the meantime, good reason why a cable must first drop
down to connect less than 3 meters to earth ground before
rising back up to enter a building. Cable must first connect
to protection before entering the building. Some previous
posts provide more details:
"Opinions on Surge Protectors?" on 7 Jul 2003 in the
newsgroup alt.certification.a-plus at
http://tinyurl.com/l3m9
"Power Surge" on 29 Sept 2003 in the newsgroup
alt.comp.hardware at
http://tinyurl.com/p1rk
Zebedee wrote:
> I have an external modem and I have a UPS.
> The problem I have is that I'd like to feed the modem cable
> through the UPS as it has a phone-line surge protector built in.
> But I seem to need a double-ended cable with a strange plug. I
> don't know what that strange plug is called. It's the same one
> that plugs into the back of every modem that I've ever seen. It's
> not an RJ45 and it's not the same as the one that plugs into the
> phone socket in the wall. Any ideas? If I knew what it was
> called, I could probably buy one!