Chapter One
... international standard established by the ITU for transmitting data over digital lines Two types of ISDN connections are commonly used in North America are BRI and PRI Another WAN transmission method is digital subscriber line (DSL) Cable is another option for high bandwidth local loop WAN transmiss ...
... international standard established by the ITU for transmitting data over digital lines Two types of ISDN connections are commonly used in North America are BRI and PRI Another WAN transmission method is digital subscriber line (DSL) Cable is another option for high bandwidth local loop WAN transmiss ...
Modem Technologies ADSL Modem
... ADSL Modem converts digital signals from your PC into analog signals that can be transmitted over telephone cable in the local loop. Local Loop is the path your telephone line will take from your house to the local exchange. ...
... ADSL Modem converts digital signals from your PC into analog signals that can be transmitted over telephone cable in the local loop. Local Loop is the path your telephone line will take from your house to the local exchange. ...
Business Class DSL Routers
... SpeedStream Business Class DSL Routers are the complete DSL solution. Versatile, secure, and scalable — get a SpeedStream Business Class DSL Router and expand your DSL capabilities today! ...
... SpeedStream Business Class DSL Routers are the complete DSL solution. Versatile, secure, and scalable — get a SpeedStream Business Class DSL Router and expand your DSL capabilities today! ...
DSL Versus Cable Internet
... and a cable modem to your computer, which may mean adding a network card if you don't already have one. This installation process is often both time-consuming and costly All areas of the country do not have access to cable Internet connections. If your local cable company doesn't offer Internet acce ...
... and a cable modem to your computer, which may mean adding a network card if you don't already have one. This installation process is often both time-consuming and costly All areas of the country do not have access to cable Internet connections. If your local cable company doesn't offer Internet acce ...
PowerPoint
... and extracts bits is a demodulator Full duplex communication requires a combined modulator-demodulator (MODEM) at both ends ...
... and extracts bits is a demodulator Full duplex communication requires a combined modulator-demodulator (MODEM) at both ends ...
konsep dan komunikasi data dalam wan
... Circuit switching networks were the first type of WANs to be widely used. They arose from networks that carried voice communication, were analog, and generally involved low data throughput. The telephone system is the best example, but even earlier, you could consider telegraph lines to be a circuit ...
... Circuit switching networks were the first type of WANs to be widely used. They arose from networks that carried voice communication, were analog, and generally involved low data throughput. The telephone system is the best example, but even earlier, you could consider telegraph lines to be a circuit ...
Serial vs. Parallel
... • Routers operate at the Network layer • They use tables to keep track of the best path from source to destination • They segment the network based on Network ...
... • Routers operate at the Network layer • They use tables to keep track of the best path from source to destination • They segment the network based on Network ...
TEL 355: Communication and Information Systems in Organizations
... • Transmits up to 2.3 Mbps over single 2X both ways up to about 10,000 feet • Supports POTS and T1/E1 simultaneously • At the same distance, ADSL is capable of transmitting over 6 Mbps • Aimed at the corporate user with high bandwidth needs upstream and downstream ...
... • Transmits up to 2.3 Mbps over single 2X both ways up to about 10,000 feet • Supports POTS and T1/E1 simultaneously • At the same distance, ADSL is capable of transmitting over 6 Mbps • Aimed at the corporate user with high bandwidth needs upstream and downstream ...
Getting on the Internet
... ADSL • Reduces the DSL cost. • More common in home applications • Typical users download more than they upload (e.g. movies) • ADSL can use the same line for simultaneous voice and data transmission while SDSL cannot ...
... ADSL • Reduces the DSL cost. • More common in home applications • Typical users download more than they upload (e.g. movies) • ADSL can use the same line for simultaneous voice and data transmission while SDSL cannot ...
Digital subscriber line
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access. DSL service can be delivered simultaneously with wired telephone service on the same telephone line. This is possible because DSL uses higher frequency bands for data. On the customer premises, a DSL filter on each non-DSL outlet blocks any high-frequency interference to enable simultaneous use of the voice and DSL services.The bit rate of consumer DSL services typically ranges from 256 kbit/s to over 100 Mbit/s in the direction to the customer (downstream), depending on DSL technology, line conditions, and service-level implementation. Bit rates of 1 Gbit/s have been reached in trials, but most homes are likely to be limited to 500-800 Mbit/s. In ADSL, the data throughput in the upstream direction (the direction to the service provider) is lower, hence the designation of asymmetric service. In symmetric digital subscriber line (SDSL) services, the downstream and upstream data rates are equal. Researchers at Bell Labs have reached speeds of 10 Gbit/s, while delivering 1 Gbit/s symmetrical broadband access services using traditional copper telephone lines. These higher speeds are lab results, however. A 2012 survey found that ""DSL continues to be the dominant technology for broadband access"" with 364.1 million subscribers worldwide.