Lecture Notes for Layers 1 and 2 the NETW-310 Course

How Layer 1 Works - The Physical Layer

Encoding the Data

Coding Data for Wired Media

Multiplexing Data on Wired Media

Modulating, Coding, and Multiplexing Data onto Wireless Media

Selecting and Preparing the Media

Copper Media

Fiber Optic Media

Wireless Media

Terminating Copper Media

Terminating Fiber Optic Media

Testing Copper Media

Testing Fiber Optic Media

Testing Wireless Media

Installing Media and Equipment Inside

Structured Cabling Standards

Installing Structured Cabling

Installing Fiber Optic Media Inside

Installing Wireless Media Inside

Equipment Installation

Installing Media and Equipment Outside

Installing Fiber Optic Media Outside

Installing Towers for Wireless Media Used Outside

Installing Wireless Media Outside

Arranging for Someone to Do the Work For You

Using a RFI, RFP, and RFQ

How Layer 2 Works - The Data Link Layer

Framing the Data

Frames Used to Carry Data from One Place to the Other

Finding Errors in the Data and Controlling the Flow of the Data

Detecting Errors

Controlling Flow