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  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (Green) PDF Drawing
    PDF Drawing of the EVNSL622 Series
 

Product Data Sheets (pdf)...CAT6/CAT6a High-Density Data Center Patch Cables

  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (Yellow) PDF Drawing
    PDF Drawing of the EVNSL624 Series
 
  • Pdf Drawing... 
  • GigaBase 350 CAT5e Patch Cable with Basic Connectors (Pink) PDF Drawing
    PDF Drawing for the EVNSL56 Series
 
  • Pdf Drawing... 
  • GigaBase 350 CAT5e Patch Cable with Snagless Boots (White) PDF Drawing
    PDF Drawing for the EVNSL90 series.
 

Black Box Explains...Alien crosstalk.

Alien crosstalk (ANEXT) is a critical and unique measurement in 10-GbE systems. Crosstalk, used in 10/100/1000BASE-T systems, measures the mixing of signals between wire pairs within a cable. Alien Crosstalk,... more/see it nowin 10-GbE systems, 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 Alien Crosstalk.

With Alien Crosstalk, the affected cable is called the disturbed or victim cable. The surrounding cables are the disturber cables. collapse

  • Pdf Drawing... 
  • GigaTrue%XAE CAT6 Component 550-MHz Patch Cable with Molded Boots (Pink) PDF Drawing
    PDF Drawing for the EVNSL676-0003, EVNSL676-0005, EVNSL676-0006, EVNSL676-0007, EVNSL676-0010, EVNSL676-0015, and EVNSL676-0020
 
  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (Pink) PDF Drawing
    PDF Drawing of the EVNSL626 Series
 
  • Manual... 
  • GigaTrue 3 CAT6 and CAT6A 550-MHz Patch Cable (Lockable, Slimline) User Manual
    User Manual for the C6PC80 and C6APC80S Series (Version 2)
 

Black Box Explains... Crosstalk.

One of the most important cable measurements is Near-End Crosstalk (NEXT). It’s signal interference from one pair that adversely affects another pair on the same end.

Not only can crosstalk... more/see it nowoccur between adjacent wire pairs (“pair-to-pair NEXT“), but all other pairs in a UTP cable can also contribute their own levels of both near-end and far-end crosstalk, multiplying the adverse effects of this interference onto a transmitting or receiving wire pair.

Because such compounded levels of interference can prove crippling in high-speed networks, some cable manufacturers have begun listing Power Sum NEXT (PS-NEXT), FEXT, ELFEXT, and PS-ELFEXT ratings for their CAT5e and CAT6 cables. Here are explanations of the different types of measurements:

NEXT measures an unwanted signal transmitted from one pair to another on the near end.

PS-NEXT (Power Sum crosstalk) is a more rigorous crosstalk measurement that includes the total sum of all interference that can possibly occur between one pair and all the adjacent pairs in the same cable sheath. It measures the unwanted signals from multiple pairs at the near end onto another pair at the near end.

FEXT (Far-End crosstalk) measures an unwanted signal from a pair transmitting on the near end onto a pair at the far end. This measurement takes full-duplex operation into account where signals are generated simultaneously on both ends.

ELFEXT (Equal-Level Far-End Crosstalk) measures the FEXT in relation to the received signal level measured on that same pair. It basically measures interference without the effects of attenuation—the equal level.

PS-ELFEXT (Power Sum Equal-Level Far-End Crosstalk), an increasingly common measurement, measures the total sum of all intereference from pairs on the far end to a pair on the near end without the effects of attenuation. collapse

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