Question about Dynex 7' Cat 6 Network Cable - Gray

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We are been told to use cat 6 on a project

We are been told to use screened cat 6 on a project could you please tell me all the negatives about using screened

please note the network is not run near power cables so no risk of emi

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If i m writing .........' i told to the students not to run in the rain' am i wrong????????????????

Posted on May 04, 2009

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Shielded cabling, of one type or another, has been the preferred cabling infrastructure in many global markets for many years. Cables described as foil screened unshielded twisted-pair (F/UTP) and fully shielded cables with an overall braid screen plus individual foil shielded twisted pairs (S/FTP) are now gaining popularity in markets where unshielded twisted-pair (UTP) cabling has traditionally been the most common solution.
This rise in adoption is tied to the publication of the IEEE standard known as 802.3an 10GBASE-T and this emerging application's sensitivity to noise from adjacent cabling. This noise from adjacent cabling is known as alien crosstalk. Screened and fully shielded 10 Gb/s cabling systems, such as category 6A F/UTP and category 7 S/FTP, are all but immune to the alien crosstalk that presents problems for category 6A UTP cabling. These cabling systems can help reduce the size and cost of pathway spaces due to their smaller diameters.
Even as cabling installers and their clients increasingly enjoy these benefits, confusion surrounding the bonding and grounding of screened and shielded systems has caused some to avoid them. This concern is unfounded, as advances in screened and shielded cabling systems have simplified bonding and grounding methods tremendously. Today, the installation and bonding and grounding/earthing of F/UTP and S/FTP cabling systems requires little additional effort and expertise over UTP installations.

Posted on Jan 10, 2009

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I have been on many sites with Cat 5 systems. What I cannot understand is why are the sockets numbered oddly i.e 1--6 2--7 3--8 etc. Instead of 1--2 3--4 5--6 etc.


Not sure if I understand your question.
Cat 5 (and higher) cables consist of four twisted pairs. The idea is, that disturbances by magnetic fields compensate each other this way. I suppose that the arrangement of the wire on the plugs and jack come from good ols analogue days, where the telephone-call was only on two wires (=one pair). To keep it as undisturbed as possible, the center of the plug (pins 4 and 5 on a rj45) was used. The next pair was spread over them and therefore used pins 3 and 6. Pair three was put on pin 1 and 2, and pai four on pins 7 and 8.
hth, Karl

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Hello,

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http://www.monoprice.com/products/department.asp?c_id=105

Amazon.com also has good network cables for low cost.

I hope this helps

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The future is all about high-speed data transmissions, and as more and more things are getting connected to a person's home network (Blu-Ray players, etc.) you're going to be glad that you did...

Everything is getting "smart" these days, there are even internet enabled refrigerators; while not common-place today, who knows what the next 20- to 30-years will bring...

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Cat5e is suitable for 10/100/1000baseT ethernet for 100 meters, when properly installed.
Cat 6 is also good for 10 gig ethernet for 37 meters, but that is pretty short, unless just in a server room.
There is no Cat 6e, but Cat 6A will be good for 10/100/1000/10GbaseT ethernet for 100 meters.
Unshielded Twisted Pair has no ground shield around the wires. It is the standard in the US, where most network standards were defined. There are extensions to the standards to allow for the more common in Europe, Shielded Twisted Pair.
Some Cat-6 cables are too large and may be difficult to attach to 8P8C connectors without a special modular piece and are technically not standard compliant. If components of the various cable standards are intermixed, the performance of the signal path will be limited to that of the lowest category. The maximum allowed length of a Cat-6 cable is 100 meters (330 ft) when used for 10/100/1000baseT and 37 meters (120 ft) when used for 10GbaseT. This applies for UTP cables only. Shielded Cat 6 and Cat 7 cables are capable of 100m.....sodeep

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2 Answers

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The maximum allowed length of a Cat-6 cable is 100 meters (330 ft) when used for 10/100/1000baseT and 37 meters (120 ft) when used for 10GbaseT

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1 Answer

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