atcomsystems.ca/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring Cat 5e Shielded Modular Connector

Siemon makes a quality product, so you should feel safe if you're going to use their equipment.

They also sell a lot of product to Europe (I hosted a tour for the Central Bank of the Czech Republic for them once upon a time), so they've done a lot of work on Shielded/Screened material.

If you look at different manufacturers of cable you'll see that all of them arrive at the same result (Cat 5E, Cat 6, whatever) by slightly different means. The EIA/TIA doesn't care HOW you get to Cat X, just that when you get there the product meets the defined specification.

Siemon may find that THEIR CAT 6 product works better if the cable is shielded, or more likely, they may be talking aout Cat 6A, which is a whole other story. On 6A, Alien X-Talk (X-Talk from other cables) is a big issue and I could see where shielding/screening comes in to play.

If you're being asked to bid on this, remember that shielded/screened cable takes longer to term and to certify.

Sam

If it is a secure facility, as in DOD or IC, than shielded may be required to prevent reproducible signal emanations, fiber would be better.

Ahh, Tempest proofing/over engineering. If someone has the ability to compromise low voltage singnaling and the ability to differentiate between one of 75 cables without wrapping an inductive tap on a wire, shielded probably wont slow them down much, but I'm not paying your bills.

From an emmitted RF standpoint, it would make more sense to shield the building. RF power falls off as a square of the distance. You would need less shielding because the building shell is that much farther from the wires. It only takes lead impregnated glass or metallic tinting to stop cell communications, and those are 0.7w and directly adjacent to the device.

So alien X talk is really the only issue with 6a?

What is the minimum number of cable(s) where this becomes an issue? If I bundle my runs in to small groups like 12 per pull and separate them. Will that solve it?

In other words what I am looking for is if there is a solution that will solve this issue by an installation technique instead of throwing money at it - ala shielded cable, jacks, patch panels and patch cords.


C

Igadget I agree, assuming there is separation from other equipment that “could regenerate the signal and propagate it out into the world…”

In this case their reasons are found here Siemon

Interesting… "Screened category 6A cable diameters are generally smaller than 6A UTP cables allowing greater pathway fill/utilization"

Tempest, I used to play that video game all the time.