Over the past couple of years I've been getting more calls and inquires
regarding Cat6A copper networking. I agree that Cat6A is cool but let's
dig a bit more into the cable and connectivity before we talk about
who's mostly installing it.
The Cat6A standard is performing 10 Gigabit Ethernet (10GBASE-T) up to
500MHZ and at a maximum distance of 328ft. Cat6A is also backward
compatible with Cat6 and Cat5e performance applications. (Don't forget
that Cat6 will do 10G up to 180 feet).
Here's a quick look at Cat6A vs. Cat6
When comparing Cat6A cables from one brand to the other I'm always
comfortable with the standard 500MHZ rating. You might find Cat6A cables
with a higher MHZ rating, typically those cables are more interested in
appearing as a "faster speed" cable. This is a common selling point by
low end quality cable manufactures trying to appear as a faster cable
for less cost and I've also seen it with high end cable manufactures
trying to get the consumer to pay more for the same product.
If you do see a higher MHZ rating keep in mind there is no standard for a
higher MHZ rated Cat6A cable. The standard for for Cat6A is defined by
TIA (Telecommunications Industry Association) as 568-C.2 replacing
568-B.2-10 and it defines this standard as a performance requirement for
Cat6A channels, permanent links and components at 500MHZ. The ISO
(International Standards Organization) has it listed as 11801 Class EA,
the equivalent standard outside North America.
500MHZ is the standard, so if you do find a different MHZ rating you're
paying for something that has no defined standard so your paying more
for less. I've had to go over the MHZ rating for years on Cat5e big E
and little E all thanks to manufactures confusing the market. Stop
please!
There will also be some other things to think about, like how Cat6A
cable is sold on reels. You'll need some reel handling equipment. If
your going to pull this cable once ever, you can make a reel stand with a
couple of ladders and a pole. I know it's not pretty but I've seen it
many times on job sites.
The weight of this cable is also an issue with shipping cost, going
through UPS can be expensive. Moving these cables around at your
installation can be also be a chore due to the weight. Bend with the
knees.
The diameter of the cable could also present a problem. The above video
shows a first generation Cat6A cable and that cable typically has a
outside diameter of .330" and Cat6 has a typical outside diameter of
.230" and there is a very noticeable difference. A second generation
Cat6A cable has been out for a little while now and has a outside
diameter of .300" and that has helped ease the installation process and
saving cost on certain types of materials such as conduits, horizontal,
vertical cable management, J-hooks and cable runways.
You also need to think about the bend radius. To maintain Cat6A
performance the minumum bend radius should be 4x the outside diameter
for UTP and shielded. This radius is larger than Cat6 and Cat5e. The
cable pulling tension must not exceed 25 pounds of force. Don't forget
threaded rods, stronger anchors are also needed to support the heavier
cable.
You'll also find that on the connectivity side of things it could get
very expensive. Here's a look at possibly the top line of Cat6A insert
jacks by Commscope, an overview of the jack then how to terminate.
As you can tell the Commscope Systimax jack is awesome but can cost up
to $17 each but then again it is a top dog and the test results prove
it.
Another quality insert jack to maybe consider is by Signamax. Here's an overview on it and how to terminate it.
The Signamax jack can run up to $7 each, better priced than the
Commscope brand but still a noticeable higher difference in cost
compared to their Cat6 and Cat5e offering.
Another common question I get asked about is what about shielded? I
think shielded jacks and cable are not necessary for most applications.
I've commonly sold shielded products for Television and Radio station
installations, for a home or even your common commercial installation I
think is overkill. Alright, we can check out a shielded jack anyways.
So we have jacks and cable, let's talk about patch panels. Most of the
patch panels I've seen from brand to brand seem to not have a noticeable
difference. Still using a 110 blade for punching down and still taking
up the same amount of rackspace for the ports. You know, 24 port is 1U
48 port is 2U and so on.
So we've talked about cable, jacks, patch panels but what about patch
cords? So far I've been moving 26awg patch cords and they are stranded
for flexibility.
The patch cables in the above video shows that it does in fact have a
small outside diameter of around 0.24 and that goes a long way when
patching panels to routers. Patch cord pricing is not all that bad
compared to a quality American made Cat6 or Cat5e patch cable. Cable
manufactures seem to only be offering bulk Cat6A stranded cable for
assemblies in a shielded version. I understand, it's cheaper to carry
just a shielded cable then both.
The Cat6A market is still very fresh and trying to gain traction. It
might be growing slowly into the market over the past few years due to
the economy or due to the emergence of fiber optic cable for 10G
applications.
Here's an example of a 10G fiber optic cable
Many new switches from Cisco and Hewlett Packard have a 10G option when
used with the appropriate SFP modules and with fiber pushing 10G much
further than copper, fiber optics have been much more popular in campus
environments. Data centers do seem to be the one area that is using a
good mix of 10G fiber and copper.
I understand everyone wants the latest and greatest but I'm not sure if
Cat6A will successfully escape the data center. Maybe it'll just stay
there and die.
Source :discountlowvoltage
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10/09/2013
Cat6A cable and connectors comparison and overiew
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