Physical Layer of OSI Model

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Issue:

Technology

 

Written by:

Jessica R

 

Date added:

January 27, 2014

 

Level:

University

 

Grade:

B

 

No of pages / words:

5 / 1358

 

Was viewed:

390 times

 

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Essay content:

This layer also includes the physical topology (physical lay out) of the network such as: Bus, Star, Ring or Mesh. The Physical Layer includes these devices: Network Interface Cards (NICs), Transceivers, Hubs, Multistation Access Units (MAUs), Repeaters and Cables. It is at this layer that frames received from the Data Link layer are converted to bits for transmission over the network media to the receiving machines Physical Layer...
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This includes the layout of pins, voltages, and cable specifications. The major functions and services performed by the Physical Layer are: establishment and termination of a connection to a communications medium, participation in the process whereby the communication resources are effectively shared among multiple users, modulation, or conversion between the representation of digital data in user equipment and the corresponding signals transmitted over a communications channel...
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