[034] Building an Ethernet Network Cable

Network cable Reflection & Notes
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The goal of this lab is to demonstrate that you understand the core concepts involved in how to build a cable. After you view the video of construction of the network cable, answer the following questions.
1. What is the cable model name that we built in the video? Ethernet Network Cable
2. In your own words, describe the layout of the wires in the cable in terms of the color and style?
3. Why do we use Twisted Pair (TP) wires in the cable?

1 answer

  1. Cable Model Name: The cable model name built in the video is an Ethernet Network Cable.

  2. Layout of the Wires: The Ethernet cable consists of four pairs of twisted wires, making a total of eight individual wires. Each pair is typically color-coded:

    • Pair 1: White with Blue (solid blue)
    • Pair 2: White with Orange (solid orange)
    • Pair 3: White with Green (solid green)
    • Pair 4: White with Brown (solid brown)

    The wires are twisted together in pairs to help reduce electromagnetic interference. When arranging the wires for termination, it's important to follow a specific wiring standard, such as T568A or T568B, which dictates the order in which the colored wires are placed in the RJ45 connector.

  3. Use of Twisted Pair (TP) Wires: Twisted Pair wires are used in the cable because their twisted construction helps to minimize interference from external electromagnetic sources (EMI) and crosstalk between the pairs themselves. The twisting also helps maintain consistent impedance, which improves the overall performance and signal integrity of the data transmission. This design makes Twisted Pair cables ideal for high-speed networking applications like Ethernet.