Cable Systems

1
Cable Systems

• An introduction

2
Technology of Cable Television

• Headend
• Trunk cable
• Distribution (or feeder) cable
• Drop cable
• Terminal equipment (consumer electronics)
• Coaxial cable

3
Early System Architecture

• Simple
• Problems
• Amplifiers
• Signal degradation
• Quality

4
System Architecture(See p. 120)

• Headend
• Trunk
• Feeder Feeder Feeder
• Drop Drop Drop Drop Drop Drop Drop Drop
• TV/VCR/Converter TV/VCR/Converter
  TV/VCR/Converter TV/VCR/Converter

5
New Developments

• Fiber optics
• Better quality
• Higher bandwidth
• Customization
• Analog to digital
• Scramble to encryption