sundance-communications.com/forum Forums Wiring - Telecom Carriers - Trunks & Services Outside Plant OSP Construction Outside Data Protection

Wow. Did you read the specs? It's UL497 rated for PRIMARY protection and it's going at the distant end to protect all the drops that go outside. I have a 100x80 building with a tube going out to a pump house and a single network cable and a 6 pair voice cable. The network cable will feed through a CAT5E protector to the pump house which will feed into the DL1200POE and a switch. 11 other drops will feed out of the same switch through the DL1200POE to card readers. The card readers scare me in that they will be on poles ahd supplied by others, but the 1200 is rated 1-5 nanoseconds at 16 and 62 volts and there will be two protectors and a switch between any device and any other device. The electric panel is 12 inches off the floor and grounded, the panel is 5 feet off the floor and bonded to the electrical panel with #6 wire. Geeze, I hope the 4' ground is O.K. :-)

Just in passing, the CAT5E is 497 rated with just a 3rd wire electrical ground! It comes with a connected equipment warranty.

Just for a parlor trick, I plan on testing the POE port of the surge protector by connecting a Panasonic analog port to the pair. It should work fine, but damp the ring on an incoming call.
It's a pretty impressive demonstration.

Carl

I think you are getting way too caught up in specs and not paying attention to the the required grounding methods and locations of the entrance protectors. All you have to care about is that what you are using is a listed primary protector.

Connected equipment warranties are not worth the ink on the paper its printed on. And no, a 4' ground rod is not legal for anything. Your demonstration is meaningless since it says nothing about your grounding.

-Hal

Sigh,

Picture a 10x10 concrete building that houses pumps, an electrical board, and the remote switch. The electrical board is bonded to earth ground and my DL-1200-POE is bonded to the electrical board lugs with #6 ground. It's the first and only appearance in the building. A single tube runs to an 80x100 building with 2 cables in it, a 4p24 Cat5 OSP cable and a 6pr voice cable. Both cables appear in one location in the big building and it's grounded to the steel building 10 feet away, only because they brought the tube 120 cable feet away from the electrical bond. The floor is poured, the tubes are run. I don't have a choice.

On the card reader end, it is locally powered with 12 volts and fits into a grounded device.
One of those devices may be a WAP which we'll surge protect at the Access point. The vendor for the card readers didn't seem to think the lack of surge protection at the reader was an issue.

Anyway, I feel comfortable with the decision and, as far as I'm concerned, this thread is dead.

Thanks for the advice and discussion all.

Carl

Hey Carl, the last thing I would want to do is stand between and try to pick sides on this one, but the only thing I would like to comment on is with those "connected equipment warranties". Hbiss is truly correct, those aren't worth the paper they are printed on. If you read the fine print on those, it is never practical (often impossible) to satisfy all the conditions needed if you were to ever see the warranty money. I saw one where you had to have part of the product box UPC cut out to send to them. Now when was the last time anyone cut the UPCs out? Maybe off our kids' cereal boxes so money would be donated to their school. But anyways, as long as you have that project grounded and bonded, good luck!

It gets interesting after the real installation showed up. The outside feed really goes to the Electrical room, the floor jacks are 1" leaving the network room, but "T" into a 3/4" inlet/outlet in the floor jack. The electrician saved conduit by running 4 floor jacks into a single 1" tube. I found out the hard way that you can only get SIX Cat5e cables into a tube and 4 back out again, but in a 1" tube you can fill about 10-12 cables I'm on my second bottle of lube and I expect to go through a couple more.

Two inch PVC in the purlins is my friend in this case. You can't even see them from the floor.

The outside is still a mud pit, the storm that rolled across Michigan and Ohio put the project behind by a few days, and the telco has not installed the lines and DSL. Lucky for me that the back of the drywall above the 8' line is open steel studs and will not get covered or treated. It makes the cat21 installation go smoothly with a laser line.

I did all primary protection at the BEP, and secondary protection at the KSU. The DL1200POE is going out in the pump house with a switch. No matter how I slice it, the main building is steel and the pump house is concrete and the card readers are surrounded by grounded devices like turnstiles and poles and water.

I remember that Tripp Lite was very easy to deal with on connected equipment, and Panamax was awful. ITW Linx is trying to shed the MAX image, so maybe they'll be better on connected equipment warranties. Of course, in a perfect world we won't need them :-)

Carl