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Black Box Explains...Token Ring Cabling

The original Token Ring specifications called for shielded twisted-pair (STP) cable using either a DB9 connector or a unique square connector called the IBM data connector. Later, Token Ring was... more/see it nowadapted to use conventional unshielded twisted-pair (UTP) cable with RJ-45 connectors. The most common kinds of Token Ring cabling in use to day are Type 1 and Type 6 STP as well as Type 3 UTP.

Type 1 shielded twisted-pair (STP) cable is the original wiring for Token Ring. In Type 1 cabling, each wire is constructed of 22 AWG solid copper. Type 1 cable is not as flexible as Type 6 cable and is generally used for long runs in areas where twists and turns are less likely, such as in walls or conduits.

Type 6 Token Ring cable is a lighter, more pliable version of Type 1 cable. It’s constructed of two stranded 26 AWG copper pairs that are surrounded by an overall braided shield. Type 6 cable is commonly used in offices and open areas, and its flexible construction enables it to negotiate multiple twists and turns.

Type 3 or UTP Token Ring cabling uses the same twisted-pair CAT3, CAT5, or CAT5e cabling with RJ-45 connectors as 10BASE-T Ethernet does. Attaching older Type 1 Token Ring to UTP Token Ring requires a balun or adapter. collapse

  • Pdf Drawing... 
  • CAT5e 100-MHz Shielded, Stranded Bulk PVC Cable (FTP), Gray, PDF Drawing
    PDF Drawing for the EVNSL0172GY-1000 (Version 1)
 

Product Data Sheets (pdf)...Ultra2 LVD SCSI Cables and Terminators


Product Data Sheets (pdf)...Multicolor Fiber Optic Patch Cables


Black Box Explains...Augmented Category 6 (CAT6A).


Augmented Category 6 (CAT6a)–Class Ea was ratified in February 2008. This standard calls for 10-Gigabit Ethernet data transmission over a 4-pair copper cabling system up to 100 meters. CAT6a extends... more/see it nowCAT6 electrical specifications from 250 MHz to 500 MHz. It introduces the ANEXT requirement. It also replaces the term Equal Level Far-End Crosstalk (ELFEXT) with Attenuation to Crosstalk Ratio, Far-End (ACRF) to mesh with ISO terminology. CAT6a provides improved insertion loss over CAT6. It is a good choice for noisy environments with lots of EMI. CAT6a is also well-suited for use with PoE+.

CAT6a UTP cable is significantly larger than CAT6 cable. It features larger conductors, usually 22 AWG, and is designed with more space between the pairs to minimize ANEXT. The outside diameter of CAT6a cable averages 0.29–0.35" compared to 0.21–0.24" for CAT6 cable. This reduces number of cables you can fit in a conduit. At a 40% fill ratio, you can run three CAT6a cables in a 3/4" conduit vs. five CAT6 cables.

There are two types of CAT6a cable, UTP and F/UTP.

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  • Specification Sheet... 
  • GigaTrue 550 CAT6, 550-MHz Stranded Bulk Cable, 4-Pair, PVC, 24 AWG, Purple, 1000-ft. (304.8-m)
 

Product Data Sheets (pdf)...Fiber Optic Cable (Distribution-Style) with Pulling Eye

  • Specification Sheet... 
  • CAT6 400-MHz Shielded Solid Bulk Cable (F/UTP) (Plenum, White) Spec Sheet
    Specification Sheet for EVNSL0615A-1000
 

Product Data Sheets (pdf)...FDDI Multimode, 62.5-Micron Patch Cable

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