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Black Box Explains...Shielded vs. unshielded cable.

The environment determines whether cable should be shielded or unshielded.

Shielding is the sheath surrounding and protecting the cable wires from electromagnetic leakage and interference. Sources of this electromagnetic activity... more/see it now(EMI)—commonly referred to as noise—include elevator motors, fluorescent lights, generators, air conditioners, and photocopiers. To protect data in areas with high EMI, choose a shielded cable.

Foil is the most basic cable shield, but a copper-braid shield provides more protection. Shielding also protects cables from rodent damage. Use a foil-shielded cable in busy office or retail environments. For industrial environments, you might want to choose a copper-braid shield.

For quiet office environments, choose unshielded cable. collapse

  • Pdf Drawing... 
  • CAT5e 100-MHz Shielded, Stranded Bulk PVC Cable (FTP), Yellow, PDF drawing
    PDF Drawing for EVNSL0172YL-1000 (v1)
 
  • Pdf Drawing... 
  • GigaTrue CAT6 Channel 550-MHz Patch Cable (UTP) with Snagless Boots (Beige) PDF Drawing
    PDF Drawing of the EVNSL645 Series
 

Black Box Explains...Category 6.

Category 6 (CAT6)–Class E has a specified frequency of 250 MHz, significantly improved bandwidth capacity over CAT5e, and easily handles Gigabit Ethernet transmissions. In recent years, it has been the... more/see it nowcable of choice for new structured cabling systems. CAT6 supports 1000BASE-T and, depending on the installation, 10GBASE-T (10-GbE).

10-GbE over CAT6 introduces the problem of Alien Crosstalk (ANEXT), the unwanted coupling of signals between adjacent pairs and cables. Because ANEXT in CAT6 10-GbE networks is so dependent on installation practices, TSB-155 qualifies 10-GbE over CAT6 up to 55 meters and requires it to be 100% tested. To mitigate ANEXT in CAT6, it is recommended that you unbundle the cables and increase the separation between the cables.

You can always contact Black Box Tech Support to answer your cabling questions. Our techs can recommend cable testers and steer you in the right direction when you’re installing new cabling. And the advice is FREE! collapse

  • Pdf Drawing... 
  • TAA GigaTrue 3 CAT6 550-MHz Patch Cable (UTP, Lockable, Slimline, Green) PDF Drawing
    PDF Drawing for the C6PC80-GN-03, C6PC80-GN-05, C6PC80-GN-07, C6PC80-GN-10, C6PC80-GN-15, & C6PC80-GN-20 (Version 1)
 

  • Specification Sheet... 
  • CAT6 250-MHz Shielded, Stranded Bulk Cable (SSTP, PIMF), Gray, Specification Sheet
    Specification Sheet for EVNSL0272GY-1000 (v1)
 

Product Data Sheets (pdf)...GigaBase CAT5e Channel Solution


Product Data Sheets (pdf)...IEEE 1284 to USB Printer Cable Bridge

  • Pdf Drawing... 
  • USB 2.0 Coiled Cable, Type A/B, Male/Male PDF Drawing
    PDF Drawing for USB10-0001, USB10-0002, USB10-0003 (Version 1)
 
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