Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
MCA Articles
Page 24 of 95
Cable Television
Cable television is a television delivery system that transmits programming to subscribers through coaxial or fiber optic cables. Unlike terrestrial television that uses radio waves transmitted through the air, or satellite television that relies on communication satellites, cable TV provides a direct wired connection from the service provider to the subscriber's premises. Cable television systems use a tree and branch network topology, where signals originate from a central headend facility and are distributed through a hierarchical network of cables to reach individual homes and businesses. Cable Television Network Architecture ...
Read MoreCommunity Antenna Television
Community Antenna Television (CATV), also known as Community Access Television, was originally developed to provide cable TV services to rural areas and hilly terrains where over-the-air broadcast signals were weak or unavailable. Subscribers pay a monthly subscription charge along with an initial installation fee to access these services. CATV systems work by using large community antennas positioned on hilltops or tall structures to receive strong broadcast signals from distant television stations and communication satellites. These signals are then distributed to homes and businesses through a network of coaxial cables. System Layout The CATV system comprises several key ...
Read MoreCable Internet
Cable Internet is a category of broadband Internet access that uses the infrastructure of cable TV networks to provide Internet services. Cable Internet provides connectivity from the Internet service provider (ISP) to end users in a similar manner as digital subscriber line (DSL) and fiber-to-the-home (FTTH). System Layout Broadband cable Internet access uses a cable modem termination system (CMTS) at a cable operator facility called a headend. The headend is connected to switching centers by high-bandwidth fiber trunk lines. Each switching center connects to one or more fiber nodes through fiber optic cables. Finally, local coaxial cables connect ...
Read MoreCable Modems
A cable modem is a hardware device that connects a computer to an Internet Service Provider (ISP) through the local cable TV infrastructure. It serves as a bridge between your home network and the cable company's broadband network, enabling high-speed internet access over coaxial cables. Cable modems have two interfaces: one connects to the cable TV network outlet, and the other connects to a computer, router, or other network device through Ethernet or USB. Cable Modem Connection Overview Cable TV Network ...
Read MoreCable Modem Termination System (CMTS)
A Cable Modem Termination System (CMTS) is a hardware device located at the headend of a cable TV network that connects cable subscribers to their Internet Service Provider (ISP). It enables high-speed data services like Internet access and Voice over Internet Protocol (VoIP) over the existing cable TV infrastructure. CMTS in Cable Network Architecture CMTS Headend HFC Network CM CM CM Internet/ISP ...
Read MoreData Over Cable Service Interface Specification (DOCSIS)
Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard that enables high-speed data transmission over existing cable TV infrastructure using Hybrid Fiber-Coaxial (HFC) networks. DOCSIS allows cable operators to provide broadband Internet access and support high-definition television services through the same coaxial cables used for traditional cable TV. DOCSIS transforms cable TV networks into bidirectional data communication systems, enabling millions of homes to access high-speed Internet without requiring new infrastructure deployment. DOCSIS Cable Network Architecture CMTS (Head-end) ...
Read MoreADSL versus Cable
ADSL (Asymmetric Digital Subscriber Line) is a broadband technology that transmits digital data at high speeds over existing telephone lines to homes and businesses. Cable networks provide internet, television, and telephone services through existing cable TV infrastructure using coaxial cables. Both technologies offer high-speed internet access but use different underlying infrastructure and have distinct performance characteristics that affect user experience. ADSL vs Cable Network Infrastructure ADSL Network Home Twisted Pair ...
Read MoreCircuit-switched vs Packet-switched networks
Circuit-switched networks are connection-oriented networks where a dedicated route is established between the source and destination before data transmission begins. The entire message travels through this fixed path. Packet-switched networks are connectionless networks where messages are divided into small units called packets that are individually routed from source to destination, potentially taking different paths. Circuit-Switched vs Packet-Switched Networks Circuit Switching A B Dedicated Path ...
Read MoreNetwork Interface Device
A Network Interface Device (NID), also called network interface unit (NIU), is an interface between the network provider's local loop and the customer premises. These devices appear as grey boxes outside customer buildings, marking the point where the service provider's data wires end and the customer's internal wiring begins. Network Interface Device (NID) Connection Point Service Provider Local Loop NID ...
Read MoreCable, ADSL, and Fiber
Cable, ADSL, and Fiber are three major broadband technologies that deliver internet connectivity to homes and businesses. Each technology uses different physical mediums and offers distinct advantages and limitations for data transmission. Cable internet utilizes the existing coaxial cable infrastructure originally deployed for television broadcasting. ADSL (Asymmetric Digital Subscriber Line) leverages existing telephone copper wire networks to provide broadband services. Fiber optic internet uses light signals transmitted through glass or plastic fiber cables to deliver ultra-high-speed connectivity. How Each Technology Works Cable networks share bandwidth among users in a neighborhood through a coaxial cable infrastructure. The shared ...
Read More