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- How Do Fiber Optics and Cable Television Work
Fiber Optics knowledge
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- How to Use the Fiber Optic Cleaver?
- What are Fixed Attenuators & Variable Attenuators?
- Deployable Fiber Optic Systems for Harsh Mining Environments
- Developing Miniature Fiber Optic Cable Has Become the Trend
- Fiber Optic Cleaning Procedures
- 6 Steps to Selecting a Fiber Optic Cable
- Signal Attenuation Introduction
- How Fiber Transmission Works?
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Except products belongs to Bargain Shop section, all products are warranted by SOPTO only to purchasers for resale or for use in business or original equipment manufacturer, against defects in workmanship or materials under normal use (consumables, normal tear and wear excluded) for one year after date of purchase from SOPTO, unless otherwise stated...
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Applications
Fiber Optis can be used in so many fields:
Data Storage Equipment
Interconnects,Networking
Gigabit Ethernet
FTTx, HDTV,CATV
Aerospace & Avionics
Data Transfer Tests
Network Equipment
Broadcast Automotive
Electronics,Sensing
Oil & Gas, Imaging
Outside Plant,Central Office
Harsh Environment
Data Transmission
Illumination,Institutions
Ship to Shore,Education
Simulation,Military,Space
Unmanned Aerial Vehicles
Semiconductor Equipment
Diagnostics & Troubleshooting
Premise Networks Carrier Networks
Independent Telecommunication Providers
SOPTO Products
- Fiber Optic Transceiver Module
- High Speed Cable
- Fiber Optical Cable
- Fiber Optical Patch Cords
- Splitter CWDM DWDM
- PON Solution
- FTTH Box ODF Closure
- PCI-E Network Card
- Network Cables
- Fiber Optical Adapter
- Fiber Optical Attenuator
- Fiber Media Converter
- PDH Multiplexers
- Protocol Converter
- Digital Video Multiplexer
- Fiber Optical Tools
- Compatible
Performance Feature
Fiber Optics knowledge
Recommended
How Do Fiber Optics and Cable Television Work?
Fiber optical cable and the old common (RF or coaxial) cable are two different cable system technologies that can be used to distribute various services to end users-homes. In general, they differ only in technical (electrical or communication) point of view. This is mainly important for the network operators because end users or viewers don't care about the technology; they are interested in services and TV channels. There are several different methods that can be used to release public services like television channel through a cable television network. Each has some advantages and disadvantages and requires different topology structure and network infrastructure.
Analog Television
The first cable television network was just extension of the broadcast in the air. This was implemented by deploying ordinary antenna cable (but with lower losses) from the cable system head end to the homes, because of distance and many amplifier at a particular point, to ensure that the required signal level.
Special communication is one-way, but then most of these cables network to expand to DocSys allows two-way communication need to access the Internet through the use of the system. This approach can be used with radio frequency coaxial and optical fiber cable. Fiber optic cables are also used in some cases to distribute the old analog cable television. The advantage of optical network because it can use the available fiber in the existing optical fiber cable and the cable loss is very low.
Digital Television
Digital television in cable networks can be divided into two totally different ways of distribution. The first one is an equivalent to digital broadcasting and the other way mainly used in fiber optic networks is IP television.
Digital Cable Broadcasting
This is equivalent to analog distribution over (RF) cable but with digital signal. The same technology (modulation) can be used as the ground broadcasting but usually, there are more efficient systems, considering the specific properties of the cable system. One typical example is DVB-T system which is used in Europe for digital terrestrial video broadcasting but cables use similar DVB-C system.
IP Television
This is one of the most popular digital television distribution used with fiber optic cable systems. This means that the distribution channels with IP protocol is the backbone of network communication. Each TV channels is encoded with either MPEG-2 or MPEG-4 system and then distributed over fiber optical cable network to the homes. The advantages are enormous.
The capacity for the number of channels is pretty high, all the channels can be encoded and distributed with very high quality, it is very easy to distribute HD channels; access to the internet is very simple because of the IP protocol and native technology.
Regardless of distribution cable technology
The changes are also happening in the consumer industry. The old CRT television sets are replaced by plasma or LCD flat panel displays and aspect ratio or picture format is also changing from 4:3 to 16:9. Since computer LCD monitors use similar display panels they can be converted to televisions by just adding a simple TV tuner.
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