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Network Connectors and Cables

The video presents network connectors and cables that are often used in networking.

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Network Connectors and Cables

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  1. ExamGuides.com A+ Core Exam Notes Network Connectors and Cables

  2. Characteristics of connectors and cabling. Thin co-axial and thick co-axial cables have conductive grounding sheath surrounding the center conductor. Therefore, the electromagnetic interference(EMI) is significantly less. Fiber optic cabling is immune to crosstalk and other electrical interference because optical fiber does not conduct electricity and uses light signals in a glass fiber, rather than electrical signals along a metallic conductor to transmit data. So it cannot produce a magnetic field and thus is immune to EMI. SCULPTURE & ART EXHIBITION In twisted pair cable, the noise introduced into the twisted pair wire is canceled as the electrical signals pass through the wire. However, it is not possible to reduce the electrical interference totally in a TP wire .Instead of transferring data over copper wires, these cables contain optical fibers that transmit data via light, rather thanpulses of electricity. Each optical fiber is individually coated with plastic layers and contained in a protective tube, making it extremely resistant to external interference. Twisted Pair cable Types: STP stands for Shielded Twisted Pair and UTP stands for Unshielded Twisted Pair. Shielded Twisted Pair (STP): STP cables reduce electrical noise and electromagnetic radiation. In other words, they help to keep the signal steady, and reduce interference with other devices. Given below is a diagram showing a typical shielded twisted pair cable ON NOW

  3. Unshielded Twisted Pair (UTP): UTP cables do not have shielding to reduce interference. They are designed to cancel electromagnetic interference with the way the pairs are twisted inside the cable. Unshielded twisted cables are most widely used for office LANs, though recently wireless LANs are more widely used. Unshielded cables are lightweight, thin and flexible. They are also versatile and inexpensive. A typical UTP cable cross section is shown in the figure below:

  4. Comparison between STP and UTP: 1. Physical: The only difference between the STP and UTP cable is the additionalshielding material used in STP cables. The shielding covers the full length of thecable and protects it from any external interference. 2. Cost: Due to the additional material used in a STP cable, it costs more than theUTP cable. 3. Considerations: While using STP cable will yield maximum bandwidth despiteexternal conditions, the shielding makes the cable heavier and more difficult tobend. 4. Use: UTP cable typically is used in homes and offices. Some large businesses alsouse the cable because it is cheaper. Large companies that require maximumbandwidth typically use STP cable. STP cable is used outside to better deal with theelements and equipment that may degrade bandwidth quality.

  5. Check out Tutorialsweb.com for more such articles on networking and hardware.

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