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Black Box Explains...Digital Visual Interface (DVI) cables.

The Digital Visual Interface (DVI) standard is based on transition-minimized differential signaling (TMDS). In a typical single-line digital signal, voltage is raised to a high level and decreased to a... more/see it nowlow level to create transitions that convey data. To minimize the number of transitions needed to transfer data, TMDS uses a pair of signal wires. When one wire goes to a high-voltage state, the other goes to a low-voltage state. This balance increases the data-transfer rate and improves accuracy.

There are different types of DVI connectors: DVI-D, DVI-I, DVI-A, DFP, and EVC. DVI-D is a digital-only connector.

DVI-D is a digital-only connector. DVI-I supports both digital and analog RGB connections. Some manufacturers are offering the DVI-I connector type on their products instead of separate analog and digital connectors. DVI-A is used to carry an analog DVI signal to a VGA device, such as a display. DFP, like DVI-D, was an early digital-only connector used on some displays; it’s being phased out. EVC (also known as P&D) is similar to DVI-I only it’s slightly larger in size. It also handles digital and analog connections, and it’s used primarily on projectors. collapse

  • Pdf Drawing... 
  • GigaTrue%XAE CAT6 Component 550-MHz Patch Cable with Molded Boots (White) PDF Drawing
    PDF Drawing for EVNSL680-0003, EVNSL680-0005, EVNSL680-0007, EVNSL680-0010, EVNSL680-0015, and EVNSL680-0020

  • Pdf Drawing... 
  • Single-Mode, 9.0-Micron Duplex Fiber Optic Cable PDF Drawing
    PDF Drawing for EFN310-LCLC Series (1)
  • Specification Sheet... 
  • GigaTrue 550 CAT6, 550-MHz Stranded Bulk Cable, 4-Pair, PVC, 24 AWG, Green, 1000-ft. (304.8-m)

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

  • Specification Sheet... 
  • CAT6 250-MHz Shielded, Stranded Bulk Cable (SSTP, PIMF), Violet, Specification Sheet
    Specification Sheet for EVNSL0272VI-1000 (v1)
  • Specification Sheet... 
  • CAT6 400-MHz Shielded Solid Bulk Cable (F/UTP) (Plenum, Gray) Spec Sheet
    Specification Sheet for EVNSL0612A-1000
  • Pdf Drawing... 
  • GigaTrue CAT6 Channel Patch Cable with Basic Connectors (White) PDF Drawing
    PDF Drawing of the EVNSL630 Series
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