Der "Steckbrief" » backbone connects the network to

Digital Subscriber Line (DSL) refers to the wire transmission technology that is used to bring data and information faster over the copper telephone lines. The Digital Subscriber Line (DSL) is connected to homes or businesses that use the telephone lines. Digital Subscriber Line acts as the link between the traditional phones services lines that connects home or the business to the telephone service provider company. The services offered by Digital Subscriber Line are to connect home or business to the telephone service provider through a DSL Modem. The DSL modem links the telephone line to the telephone service company central office where the DSL Access Multiplexer (DSLAM) is located. The Digital Subscriber Line Access Multiplexer transmits signals from the copper telephone line to the network distributing backbone. The network distributing backbone connects the network to the internet (Prieger Yodny Cajuste Jersey , 2003). The Digital Subscriber Line provides high speed internet access. The Digital Subscriber Line transmission technology eliminates the need to establish a dial operation. The Digital Subscriber Line transmission technology allows the home consumers and the business enterprises to have always ON connection to the internet. The Digital Subscriber Line transmission technology provide high speed internet services through
Symmetrical Digital Subscriber line (SDSL). The technology provides services to the business applications that include the video conferencing. The traffic from consumer is the upstream traffic while the traffic from the network service provider is the downstream traffic (Prieger, 2003).
Asymmetrical Digital Subscriber Line (ADSL). The transmission technology offer services to the clients who receive huge data and information but in return they send little data for example the internet surfers. Asymmetrical Digital Subscriber Line provides higher speed data transfer for the downstream operation (from telephone service provider to the consumer premise) than to the upstream (from consumer premise to the telephone service provider) (Prieger, 2003).
ISDN Digital Subscriber Line (IDSL). IDSL refers to the technology that provides business applications like the video conferencing. The network connection has equal upstream and downstream traffic by combining the Integrated Service Digital Network (ISDN).
High Data rate Digital Subscriber Line (HDSL). HDSL is the communication technology that provides fixed symmetrical high speed network access at the rate of 1.5 Megabytes per second. The network is specifically designed for the use of business purposes.
Very High Data Rate Digital Subscribers Line (VHDSL). VHDSL is a dedicated communication technology that offers both asymmetric and symmetric network access with high speed bit rate over the telephone copper wire. The line offers little deployment.

Compare and evaluate the cost of DSL and Cable Modem
The cost of implementing Digital Subscriber Line with high bandwidth speed similar to Cable Modem is high. The implementation cost of the Cable Modem is low due no additional cost for the unused bandwidth (Chen Damien Harris Jersey , & Savage, 2011).


Compare and evaluate the reliability of DSL and Cable Modem