Question

Difficulty: MediumNetwork Cable Types and Connectors

A network technician is preparing to terminate custom Category 6A Shielded Twisted Pair (STP) Ethernet patch cables following the ANSI/TIA-568B (T568B) wiring standard for a factory floor environment with high electromagnetic interference (EMI). Which of the following statements correctly describe the cabling and pinout specifications required for this deployment? (Select TWO.)

  1. Pins 1 and 2 must be wired with the White/Orange and Orange conductors respectively.Answer
  2. The cable's grounding shield and drain wire must be properly connected to shielded RJ45 connectors to mitigate environmental EMI.Answer
  3. C
    Pins 1 and 2 must be wired with the White/Green and Green conductors respectively to complete the T568B pinout order.
  4. D
    Pins 4 and 5 must be swapped with Pins 7 and 8 at one end of the cable to enable 10Gbps transmission speeds.

Answer

The T568B wiring standard requires Pin 1 to be White/Orange and Pin 2 to be Orange. Furthermore, deploying Shielded Twisted Pair (STP) in high EMI environments requires connecting the foil shield and drain wire to shielded RJ45 connectors.
The T568B wiring color scheme places the orange pair on pins 1 (White/Orange) and 2 (Orange). When installing Shielded Twisted Pair (STP) in environments subject to electromagnetic noise, properly terminating the internal shielding layer to conductive RJ45 connectors ensures continuous grounding protection against signal degradation.

Step-by-Step Solution

1
Identify the conductor color order for the T568B standard
T568B orders pairs as follows: Pin 1 (White/Orange), Pin 2 (Orange), Pin 3 (White/Green), Pin 4 (Blue), Pin 5 (White/Blue), Pin 6 (Green), Pin 7 (White/Brown), Pin 8 (Brown).
Correct pin mapping ensures straight-through connectivity and proper pair twisting alignment for noise cancellation.
2
Evaluate the shielding requirement for high-EMI industrial environments
STP cable utilizes metallic shielding that must be terminated to shielded connectors to ground interference effectively.
Without grounded shielded connectors, the cable shield behaves as an antenna, failing to reduce EMI.

Key Concept

T568B Pinout Standards and STP Shield Termination
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