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Overview Of CAT7 Cable

CAT7 Cable

Overview of CAT7 Cable:

    Category 7 cable is the 7th generation or Class F of twisted pair cable for Ethernet. CAT7 cable is specifically designed for crosstalk and system noise specifications than Class E. CAT7 is able to deliver transmission speeds up to 600 MHz, making it ideal for 10 Gigabit networks.

   CAT7 cable features additional shielding, protecting individual wire pairs, as well as foil shielding over the cable as a whole. The twisting of the wire pairs and the number of turns per unit length further increases the RF shielding, protecting the CAT7 from crosstalk.

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    CAT7 cable allows for 10 G Ethernet over 100m of copper cable. CAT7 cable can be terminated with G45 connectors. It is quality manufactured to meet and exceed product certifications such as ANSI/TIA 568 B.2-1, ISO/IEC 2nd Edition 11801 Class F Specifications.

    Although 10 G Ethernet can be run with CAT6A cable, network integrity is best maintained with lower crosstalk. At high transmission speeds, elimination of interference is even more critical. 


CAT7A Cable

    CAT7A, or Augmented Class F is the latest officially recognized standard for networking cable ratified by the ISO/IEC in 2010. It is the highest caliber of twisted pair copper cable to be officially supported by a performance standard to date. CAT7A is defined for data transmission frequencies up to 1,000MHz. Simulation results indicate that 40 G Ethernet may be possible at 50 meters, and 100 G Ethernet at around 15 meters.

    CAT7A cable is commonly terminated with GG45 connectors, which are backwards compatible with RJ45 connectors used on CAT6 cable. The GG45 connector features four additional conductors, supporting speeds up to 600MHz on CAT 7, and up to 1,000MHz on CAT7A.

    The crosstalk characteristics of CAT7 and CAT7A cable enable them to support much higher frequency signals than CAT5E and CAT6. Although fiber optic cable also delivers high performance data transfer capabilities, fiber optic cable is not as flexible as twisted pair copper. Fiber optic cable also requires expensive equipment and expertise to install properly.

CAT7A Shielded Ethernet Cable - This shielded four pair, eight conductor foil twisted pair 23 AWG cable is ideal for both indoor and outdoor applications. It has a low smoke zero halogen (LSZH) jacket making it safe for both indoor and outdoor use. The individually shielded twisted pairs allow for excellent attenuation and crosstalk characteristics.



CAT7 Vs CAT7A Cable

    Our CAT7 and CAT7A cable exhibit very similar characteristics, and both are viable options for high performance data center applications. This significant difference between the two cables is the diameter. CAT7A cable is slightly thicker than CAT7 due to a slightly higher level of shielding. The extra shielding reduces EMI, and provides for network speeds up to 1,000MHz.

 

Reference:

 Nielsen, Allan (2008), AMP NETCONNECT Guide to ISO/IEC 11801 2nd Edition Including Amendment 1 (PDF), Schaffhausen, Switzerland: Tyco Electronics, p. 11, Archived from the original on February 3, 2014, retrieved March 11, 2012

 

 Flatman, Alan (2013-05-16). "ISO/IEC TR 11801-99-1: Guidance on 40GBASE-T Cabling -a tutorial-" (PDF). Retrieved 2014-01-26.

 

 Rick C. Hodgin (November 14, 2007). "UPDATE: Cat 7 copper theorized to transmit 100 Gbit/s in excess of 100 meters (328 ft) using future modems". TGDaily blog. Archived from the originalon August 3, 2009. Retrieved July 9, 2011.



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