1. 1
Chapter 2
NET WORK
CABLING

2. 2
•Understand the need for proper network management.
•Able to understand the need for network security and types of
security involved.
•Aware of the differences between the modern and traditional
networking system
•Students to understand the definition and types of Network.

3. 3
•Topologies
•LAN Cable Types

4. 4
TOPOLOGIES
 There are three main local area network (LAN)
topologies:
 Bus
 Star
 Ring
 Other network topologies include:
 Mesh
 Wireless

5. 5
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.

6. 6
THICK AND THIN COAXIAL BUS

7. 7
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.

8. 8
A SIMPLE STAR TOPOLOGY

9. 9
A HIERARCHICAL STAR TOPOLOGY

10. 10
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.

11. 11
A RING NET WORK

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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

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LAN MESH

14. 14
ENTERPRISE MESH

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WIRELESS TOPOLOGY
 Cell-based technology that uses unbounded media
 Two wireless topologies:
 Ad hoc
 Infrastructure

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AD HOC WLAN

17. 17
INFRASTRUCTURE WLAN

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LAN CABLE T YPES
 Three cable types are used in LANs:
 Coaxial
 Twisted pair
 Fiber optic

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COAXIAL CABLE

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21. Chapter 2: NETWORK CABLING 21

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UNSHIELDED T WISTED PAIR (UTP)
CABLE

23. Chapter 2: NETWORK CABLING 23

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UTP CONNECTORS
Cat 5/ RGJ45

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FIBER OPTIC CABLE

26. Chapter 2: NETWORK CABLING 26

27. Chapter 2: NETWORK CABLING 27
Fiber Optics Connectors

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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.