Cat 6e vs Cat 6a

Question

I have a matrix 200 *10 having values between 100 and 150 and I want to have values of between [0 1] that's it.

I know one way of doing is to divide it by max value but I want to know any other way i.e built in function of matlab or any other mathematical formula which shifts all values to less than one. Kindly do not mention sigmoid function as I have tried.

Thanks

Solution 1

As you deduced, 6e is a marketing term that was used before the formal adoption of 6a. To correct the term, lets call it enhanced Category 6. The "things" in question that have been modified generally have to do with the physical characteristics i.e. number of twists per inch, separation of pairs and the existence/type of shielding on the cable.

The question isn't really whether 6 vs enhanced 6 vs 6a will -support- 10GBaseT, but rather at what distance. Cat6 is officially rated to go to 55M (including patches) while 6a is good for the full 100 meters/328 feet. This isn't to say, of course, that a 75M run of cat6 won't work - just that it's outside of TIA spec.

Here's the thing, though - if the 5e / enhanced 6 / 6A wasn't correctly terminated on compliant patch panels/connectors/jacks then none of this actually matters all that much. Enhanced 6 should exceed 6 and may be equal to 6A, but the lack of an official spec at the time basically means that you need to base your design on the results of certification with a cable tester capable of measuring to these kinds of speeds. If you can hit 500MHz at the right crosstalk and such (as per 6A) then you're good. If not, then your cable vendor owes you a re-run.

Solution 2

Cat 6a cable is supposed to provide a bandwidth of 500MHz. Some cable analyzers will be able to report on that.

Cat 5e can support full duplex gigabit operations, so in the vast majority of applications even cat 6 is unnecessary at present, but I guess requirements are requirements...

Comments

[SpacemanSpiff]

To hell with it, use DAC/TwinAx cables or fiber.

[SpacemanSpiff]

Or more seriously... just like the argument of Cat5e vs Cat6 for 1Gb iSCSI, are you actually experiencing an issue or just building it to some kind of specification?

[Jack]

@SpacemanSpiff I'm building a new house and want some Cat 6a installed if the house is going to to last for decades.

[SpacemanSpiff]

viva la fiber! :D

[John Gardeniers]

Because you're asking about your new house this is off topic. However, I would use current spec and disregard the future. If/when it becomes desirable to replace the cable with something newer or different just use your old cables to pull the new ones in.

[Tom O'Connor]

While this is technically off-topic (in the topic of a house), it's very on-topic if we ignore the house thing.

[rnxrx]

Not necessarily the case. The rating of the cable is the -minimum- spec. The measured NEXT (for example) of a cat6 cable might exceed that of a cat6a because of particular environmental conditions or manufacturing differences but it doesn't mean that the cable itself is actually 6a. The ratings on the jacket are confirmed by a cable tester, not the other way around.

[Philip]

I only see one option, but you said there were two??

[Shane]

You are right but here dimension is actually changed i.e 5*3 are now changed to any row or column vector which isn't required and also values are not less than one which I need values in between [0 1]

[Shane]

Yes, bro it works thanks

[bremen_matt]

It was unclear from your wording... As I read it... you want to know the values in the matrix which are less than the maximum value. Did P0W's solution solve your problem? If not, please update the question to make it clear what the goal is.

[Shane]

I have updated.

[Jeter-work]

Please edit and explicitly reference whatever 'these' is.

[Jeter-work]

In '20, Cat5e still has a place...if you use a lot of low bandwitdth with POE.

[Jeter-work]

Comparing copper to fiber, you have to balance the cost of the wiring and the cost of the terminations. With the price of copper, bulk ethernet is more expensive than bulk fiber. However, it only takes moderate practice and training and inexpensive tools to terminate copper, while terminating fiber requires specialized (relatively expensive) tools, and really needs some paid training.

[J. M. Becker]

@Xalorous You are right, forgot about POE. ... but for a house, streaming media devices and LAN party would take the priority.

[Jeter-work]

@J.M.Becker I have a house under contract. I assumed they'd be using Cat6. Then I saw a video talking about which kind to use in your house. Then I checked. Builder is using Cat5. For the price of the house, and the difference in cost of the cable, there's no reason to not use Cat7. I just hope that they're using Cat5e.

[J. M. Becker]

@Xalorous, Yea for a home, it just doesn't make sense to not use something better that 5e... yea, they won't be using regular 5, I don't even think you can buy it these days.