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NETWORK CABLING

Chapter 2. NETWORK CABLING. TOPOLOGIES. There are three main local area network (LAN) topologies: Bus Star Ring Other network topologies include: Mesh Wireless. BUS TOPOLOGY. The bus topology supports thick and thin coaxial segments. Segments are connected by repeaters.

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NETWORK CABLING

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  1. Chapter 2 NETWORK CABLING

  2. Chapter 2: NETWORK CABLING TOPOLOGIES • There are three main local area network (LAN) topologies: • Bus • Star • Ring • Other network topologies include: • Mesh • Wireless

  3. Chapter 2: NETWORK CABLING BUS TOPOLOGY • The bus topology supports thick and thin coaxial segments. • Segments are connected by repeaters. • The bus topology uses the baseband signaling method. • Signals are broadcast in both directions simultaneously. • Both ends of each segment require termination to avoid reflection. • End systems connect to the segment in a linear manner.

  4. Chapter 2: NETWORK CABLING THICK AND THIN COAXIAL BUS

  5. Chapter 2: NETWORK CABLING STAR TOPOLOGY • The star topology can use coaxial, twisted pair, or fiber optic cable. • A central device (hub) connects hubs and nodes to the network. • Each node connects to its own dedicated port on the hub. • Hubs broadcast transmitted signals to all connected devices. • You can connect multiple hubs to form a hierarchical star topology. • The star topology uses the baseband signaling method.

  6. Chapter 2: NETWORK CABLING A SIMPLE STAR TOPOLOGY

  7. Chapter 2: NETWORK CABLING A HIERARCHICAL STAR TOPOLOGY

  8. Chapter 2: NETWORK CABLING RING TOPOLOGY • The ring topology can use twisted pair or fiber optic cabling. • A central device (hub) connects hubs and nodes to the network. • Each node connects to its own dedicated port on the hub. • You can connect multiple hubs to form a larger ring. • The ring topology uses the baseband signaling method. • Frames are transmitted around the ring from node to hub to node. • Media Access Control (MAC) is used for token passing.

  9. Chapter 2: NETWORK CABLING A RING NETWORK

  10. Chapter 2: NETWORK CABLING MESH TOPOLOGY • Typically uses fiber optic cabling for redundant wide area network (WAN) links • Provides multiple paths to destinations for fault tolerance • Supports baseband and broadband signals • Requires an enormous amount of cable

  11. Chapter 2: NETWORK CABLING LAN MESH

  12. Chapter 2: NETWORK CABLING ENTERPRISE MESH

  13. Chapter 2: NETWORK CABLING WIRELESS TOPOLOGY • Cell-based technology that uses unbounded media • Two wireless topologies: • Ad hoc • Infrastructure

  14. Chapter 2: NETWORK CABLING AD HOC WLAN

  15. Chapter 2: NETWORK CABLING INFRASTRUCTURE WLAN

  16. Chapter 2: NETWORK CABLING LAN CABLE TYPES • Three cable types are used in LANs: • Coaxial • Twisted pair • Fiber optic

  17. Chapter 2: NETWORK CABLING COAXIAL CABLE

  18. Chapter 2: NETWORK CABLING AUI (ATTACHMENT UNIT INTERFACE) CABLE

  19. Chapter 2: NETWORK CABLING THIN ETHERNET HARDWARE

  20. Chapter 2: NETWORK CABLING UNSHIELDED TWISTED PAIR (UTP) CABLE

  21. Chapter 2: NETWORK CABLING UTP CONNECTORS

  22. Chapter 2: NETWORK CABLING UTP CABLE GRADES

  23. Chapter 2: NETWORK CABLING FIBER OPTIC CABLE

  24. Chapter 2: NETWORK CABLING STRAIGHT TIP (ST) CONNECTOR

  25. Wiring within a twisted pair cable is configured as either Straight through, where each wire (or pin) is attached to the same contact point at each end Crossover, where transmit contacts on each end of the cable are connected to the receive contact at the other end Chapter 2: NETWORK CABLING STRAIGHT THROUGH AND CROSSOVER WIRING

  26. Chapter 2: NETWORK CABLING STRAIGHT THROUGH WIRING

  27. Chapter 2: NETWORK CABLING CROSSOVER WIRING

  28. Chapter 2: NETWORK CABLING SUMMARY • The three basic LAN topologies are bus, star, and ring. WLANs are becoming more popular. Mesh networks are not typically used in LANs. • The primary cable types used in LANs are coaxial, twisted pair, and fiber optic.

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