文档介绍：Sterlite Optical Technologies Ltd
Fiber Optic Cables : The Future of works
Cable & Broadcast (India) 2005 Milind Chavan
New Delhi, India Chief Manager – Product Development
August 5, 2005 Chavan_ms@
Presentation Outline
work Architecture
Upgrade of works with Fiber Optic Cables
Advancements in Optical Fiber for HFC
Fiber Optic Cable Solutions / Designs for CATV
Networks
Sterlite’s Focus on Product Solutions
Cable & Broadcast (India) 2005, New Delhi August 5, 2005
1
CATV Overview
• What is CATV ?
– Broadcast signal by satellite
– Received by Antenna at earth station
– Transmission munity over guided media using Electronic
equipments
• What is Traditional CATV ?
– Guided media : Coaxial Cable
– Parts : Head End , Trunk Coaxial Cable , Feeder & Amplifier, Drop
coaxial cable
• What are Limitations of Traditional CATV ?
1. More amplifiers are needed : cause distortion to signal &
creates its own noise & non linear distortion
2. only downstream broadcasts to subscriber television sets
3. Bandwidth low 350 Mhz to 550 Mhz
Cable & Broadcast (India) 2005, New Delhi August 5, 2005
Traditional work
Architecture
TREE AND BRANCH ARCHITECTURE
Satellite
Line extender amplifier
Reception
Bridge/Trunk amplifier
Tap
Coax
(3)
Distant and
Local Signals Trunk Cable(3)
Headend (2)
Drop (6)
(3) Cable
Antenna Converter
VCR
TV
Studio (1)
(5) In-house
Local Wiring
Programming
Distribution (4)
Cable & Broadcast (India) 2005, New Delhi August 5, 2005
2
Frequency spectrum used by
Transmission Media
Cable & Broadcast (India) 2005, New Delhi August 5, 2005
work Architecture
Upgrade of works with Fiber Optic Cables
Advancements in Optical Fiber for HFC
Fiber Optic Cable Solutions / Designs for CATV
Networks
Sterlite’s Focus on Product Solutions
Cable & Broadcast (India) 2005, New Delhi August 5, 2005
3
CATV with HFC
• What is work ?
– Guided media: Combination of