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Ch 8 - Chapter 8 OSI Physical Layer
Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Role of the Physical Layer ,[object Object],[object Object],Ch 8 -
Purpose of the Physical Layer ,[object Object],[object Object],[object Object],Ch 8 -
Physical Layer Elements ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Physical Layer Operation ,[object Object],[object Object],Ch 8 -
Physical Layer Standards ,[object Object],[object Object],[object Object],Ch 8 -
Physical Layer Technologies ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Functions of the Physical Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Signals ,[object Object],[object Object],[object Object],Ch 8 -
Signaling Methods ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Non Return to Zero (NRZ) Signaling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Manchester Coding ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Encoding ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Signal Patterns ,[object Object],Ch 8 -
Code Groups ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Advantages of Using Code Groups ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Advantages of Using Code Groups (cont’d) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Code Symbol ,[object Object],Ch 8 -
Data Carrying Capacity ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Data Carrying Capacity (cont’d) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
*Data Carrying Capacity (cont’d) Ch 8 -
Physical Media Characteristics ,[object Object],Ch 8 -
Copper Media ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
External Signal Interference ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Limiting Interference ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Unshielded Twisted Pair ( UTP ) ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
UTP Cabling Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
UTP Cable Types Ch 8 -
Coaxial Cables ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Coaxial Cable Connectors ,[object Object],Ch 8 -
Shielded Twisted-Pair (STP) Cable ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Copper Media Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Fiber Media ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Optical Fiber Implementation Issues ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Optical Fiber Construction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Single Mode Optical Fiber ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Multimode Optical Fiber ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Wireless Media ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Types of Wireless Networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Types of Wireless Networks (cont’d) ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Wireless LAN Devices ,[object Object],[object Object],[object Object],[object Object],Ch 8 -
Wireless LAN Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Wireless LAN Standards (cont’d) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Copper Media Connectors Ch 8 -
Correct Connector Termination ,[object Object],[object Object],[object Object],Ch 8 -
Fiber Media Connectors ,[object Object],[object Object],[object Object],[object Object],[object Object],Ch 8 -
Fiber Media Connectors ,[object Object],[object Object],Ch 8 -
Type of Cables Ch 8 - OTDR Optical time-domain reflector : Check Fiber Optic cable
Devices Name Ch 8 -

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Chapter8

Hinweis der Redaktion

  1. This chapter introduces the general functions of the Physical layer as well as the standards and protocols that manage the transmission of data across local media.
  2. The International Organization for Standardization (ISO) The Institute of Electrical and Electronics Engineers (IEEE) The American National Standards Institute (ANSI) The International Telecommunication Union (ITU) The Electronics Industry Alliance/Telecommunications Industry Association (EIA/TIA) National telecommunications authorities such as the Federal Communication Commission (FCC) in the USA
  3. The figure depicts some of the purposes of signaling patterns.
  4. Data transfer can be measured in three ways: bandwidth, throughput and goodput
  5. As an example, consider two hosts on a LAN transferring a file. The bandwidth of the LAN is 100 Mbps. Due to the sharing and media overhead the throughput between the computers is only 60 Mbps. With the overhead of the encapsulation process of the TCP/IP stack, the actual rate of the data received by the destination computer, goodput, is only 40Mbps.
  6. The susceptibility of copper cables to electronic noise can be limited by any one of the above methods.
  7. The allocation of these addresses inside the networks should be planned and documented.
  8. There are benefits to using a layered model to describe network protocols and operations.
  9. The ISO 8877 specified RJ-45 connector is used for a range of Physical layer specifications, one of which is Ethernet. Another specification, EIA-TIA 568, describes the wire color codes to pin assignments (pinouts) for Ethernet straight-through and crossover cables.