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Black Box Explains...10GBASE-T standard.

In June 2006, the IEEE approved the standard for 10 Gigabit/sec Ethernet, or 10GBASE-T (10-GbE). 10-GbE transmission requires a bandwidth of 500 MHz.

The 10-GbE standards.
The cabling industry is developing... more/see it nowtwo different standards that can be used in 10-GbE applications. One is for use with Category 6 (CAT6) cable, and one is for Augmented Category 6 (CAT6a).

Alien Crosstalk.
Before discussing the standards, a definition of Alien Crosstalk is needed.

Alien Crosstalk (ANEXT) is a critical measurement unique to 10-GbE systems. Crosstalk, measured in 10/100/1000BASE-T systems, is the mixing of signals between wire pairs within a cable. Alien Crosstalk is the measurement of the signal coupling between wire pairs in different, adjacent cables.

The amount of ANEXT depends on a number of factors, including the promixity of adjacent cables and connectors, the cable length, cable twist density, and EMI. Patch panels and connecting hardware are also affected by ANEXT.

With ANEXT, the affected cable is called the disturbed or victim cable. The surrounding cables are the disturbers.

10-GbE using CAT6.
The first set of standards defines cabling performance when using Category 6/Class E cabling for 10-GbE applications. The TIA/EIA version will be the Technical Systems Bulletin 155 (TSB 155). ISO/IEC TR 24750 is a technical report to be used for measuring existing Class E systems.

No matter what the cable length is, CAT6 cable must meet 10-GbE electrical and ANEXT specifications up to 500 MHz. However, the CAT6 standard now specifies measurements only to 250 MHz, and it does not have an ANEXT requirement. There is no guarantee CAT6 can support a 10-GbE system. But the TSB provides guidelines for ways to help mitigate ANEXT. One way to lessen or eliminate ANEXT is to use shielded equipment and cables. Another way is to follow installation guidelines, such as using non-adjacent patch panels, separating equipment cords, unbundling horizontal cabling, etc.

10GbE using CAT6a.
The second set of standards will define Augmented Category 6 (CAT6a) and Augmented Class E (Class Ea) cabling. The newer, augmented cabling systems are designed to support 10-GbE over a 100-meter horizontal channel.

The TIA/EIA version is in draft and will be published as ANSI/TIA/EIA-568B.2-AD10. It recognizes both UTP and STP CAT6a systems. It also extends CAT6 electrical parameters such as NEXT, FEXT, return loss, insertion loss, and more to 500 MHz. It specifies near- and far-end Alien Crosstalk (ANEXT, AFEXT) to 500 MHz. It also goes beyond IEEE 802.3an by establishing the electrical requirements for the permanent link and cabling components. The ISO Class Ea standard will be published in a new edition of the 11801 standard.

These standards specify requirements for each component in the channel, such as cable and connecting hardware, as well as for the permanent link and the channel. collapse

  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (Red) PDF Drawing
    PDF Drawing of the EVNSL623 Series
 
  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (Yellow) PDF Drawing
    PDF Drawing of the EVNSL624 Series
 

Product Data Sheets (pdf)...TAA GIgaTrue 3 CAT6 & CAT6A Patch Cables

  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (Beige) PDF Drawing
    PDF Drawing of the EVNSL625 Series
 
  • Pdf Drawing... 
  • GigaTrue%XAE CAT6 Component 550-MHz Patch Cable with Molded Boots (Orange) PDF Drawing
    PDF Drawing for EVNSL679-0003, EVNSL679-0005, EVNSL679-0007, EVNSL679-0010, EVNSL679-0015, and EVNSL69-0020
 

Black Box Explains...What to look for in a channel solution.


Channel solution. You hear the term a lot these days to describe complete copper or fiber cabling systems. But what exactly is a channel solution and what are its benefits?... more/see it now

A definition.
A channel solution is a cabling system from the data center to the desktop where every cable, jack, and patch panel is designed to work together and give you consistent end-to-end performance when compared with the EIA/TIA requirements.

Its benefits.
A channel solution is beneficial because you have some assurance that your cabling components will perform as specified. Without that assurance, one part may not be doing its job, so your entire system may not be performing up to standard, which is a problem — especially if you rely on bandwidth-heavy links for video and voice.

What to look for.
There are a lot of channel solutions advertised on the Internet and elsewhere. So what exactly should you be looking for?

For one, make sure it’s a fully tested, guaranteed channel solution. The facts show an inferior cabling system can cause up to 70 percent of network downtime — even though it usually represents only 5 percent of an initial network investment. So don’t risk widespread failure by skimping on a system that doesn’t offer guaranteed channel performance. You need to make sure the products are engineered to meet or go beyond the key measurements for CAT5e or CAT6 performance.

And, sure, they may be designed to work together, but does the supplier absolutely guarantee how well they perform as part of a channel — end to end? Don’t just rely on what the supplier says. They may claim their products meet CAT5e or CAT6 requirements, but the proof is in the performance. Start by asking if the channel solution is independently tested and certified by a reputable third party. There are a lot of suppliers out there who don’t have the trademarked ETL approval logo, for example.

What ETL Verified means.
The ETL logo certifies that a channel solution has been found to be in compliance with recognized standards. To ensure consistent top quality, Black Box participates in independent third-party testing by InterTek Testing Services/ETL Semko, Inc. Once a quarter, an Intertek inspector visits Black Box and randomly selects cable and cabling products for testing.

The GigaTrue® CAT6 and GigaBase® CAT5e Solid Bulk Cable are ETL Verified at the component level to verify that they conform to the applicable industry standards. The GigaTrue® CAT6 and GigaBase® CAT5e Channels, consisting of bulk cable, patch cable, jacks, patch panels, and wiring blocks, are tested and verified according to industry standards in a LAN environment under InterTek’s Cabling System Channel Verification Program. For the latest test results, contact our FREE Tech Support. collapse


  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (Pink) PDF Drawing
    PDF Drawing of the EVNSL626 Series
 
  • Pdf Drawing... 
  • GigaTrue%XAE CAT6 Component 550-MHz Patch Cable with Molded Boots (Green) PDF Drawing
    PDF Drawing for the EVNSL672-0003, EVNSL672-0005, EVNSL672-0007, EVNSL672-0010, EVNSL672-0015, and EVNSL672-0020
 
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