What is B-Isdn?
B-ISDN means a digital network with a broadband integrated service. It has been designed to be the next step of Basic Integrated Services Digital Network (ISDN), which uses a public switch system to transmit data. B-ISDN allows the use of high width applications that have been problematic for ISDN. Originally, it was to replace the analog signal used in the phone system with a digital signal. In this way, it could be used to transfer voice and data. The idea was that if an agreement was obtained for the global standard for the use of ISDN, the price for the production of ISDN chips would be cheaper, which would lead to a high level of user demand. It took years for the agreement to be reached and at the time it was completed, ISDN technology was replaced by other ways of transmission.
The advantage of the ISDN network is that it uses existing phone line data, videos, voice and other signals at once and the use of digital signal. ISDN provides, depending on the transmission of signal type and on specificThe interface type, anywhere from the speed of 64 kilobites per second (kbps) to 128 kbps, and technically can go up to 2 megabits per second (MBPS). B-ISDN, considered to be a top ISDN, has a range of 155 Mbps to 622 Mbps.
Demand for a higher bandwidth for use in video and voice transmission over the Internet was the primary driving force of the development of the new system. The ISDN basic rate, the standard interface used by ISDN, lacks the required capacity to carry these signals in its channels. Businesses that used a network of local areas (LAN), which usually moved at 10 Mbps, found that the usual rate of 64 kbps slowed the overall connectivity. This caused the introduction of B-ISDN, broadband Proisdn updates.
Despite its high speed and availability of use in optical networks, B-ISDN has not been widely implemented for use on networks or Internet connection. For home networks were cable andDSL primary technologies for network internet connection. Businesses use a variety of types of connections to connect to the Internet, especially T1 and T3 management. Ethernet is still the main choice for LAN in both cases.
B-ISDN uses asynchronous transmission mode (ATM). Atm uses small data packets of the same size that create a more reliable signal than a typical Ethernet network with variable size, which is an important thing for voice packets that need to be transferred in real time. ATM is now used primarily in digital subscribers (DSL) lines and in some wireless technologies.