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Cabling Standards Flashcards

7 cards from real VDV practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Cabling Standards flashcards as text

  1. What is the maximum recommended distance between cable support points for horizontal UTP cable runs per TIA-569?

    Answer: 0.9 meters (3 ft)

    TIA-569 recommends cable supports at no more than 0.9 meter (3 ft) intervals for horizontal UTP to prevent sagging and stress.

  2. In a TIA-568 structured cabling system, what is the purpose of the Intermediate Cross-Connect (IC)?

    Answer: To interconnect backbone cabling between the main and horizontal cross-connects

    The IC provides an optional third-level connection point between the MC (Main Cross-Connect) and HC (Horizontal Cross-Connect) in large campus backbones.

  3. Which parameter specifically measures the difference between the crosstalk introduced at the far end from multiple disturbing pairs?

    Answer: PS-FEXT

    PS-FEXT (Power Sum Far-End Crosstalk) combines the crosstalk contributions from multiple disturbing pairs at the far end of the cable.

  4. What is the minimum separation between AC power conduit and telecommunications conduit when running parallel per TIA-569?

    Answer: 6 inches (150 mm)

    TIA-569 requires a minimum 150 mm (6 inch) separation between power and telecommunications conduits running in parallel to reduce EMI.

  5. According to ANSI/TIA-568, which Cat cable category first introduced augmented specifications to support 10GBase-T at full 100-meter channel length?

    Answer: Cat6A

    Cat6A (Augmented Category 6) was specifically designed to support 10GBase-T Ethernet at 100-meter channel distances.

  6. What type of connector is specified by TIA-568 as the standard 8-position modular connector for UTP data cabling?

    Answer: RJ-45 (8P8C)

    TIA-568 specifies the 8P8C modular plug/jack (commonly called RJ-45) as the standard connector for horizontal UTP data cabling.

  7. When performing optical fiber end-face inspection per TIA-526, a scratched or contaminated connector will most directly affect which measurement?

    Answer: Optical Return Loss and Insertion Loss

    Contaminated fiber end-faces increase insertion loss and degrade optical return loss, causing link failures.