Broadband Integrated Service Digital Network (B-ISDN) is a standard for delivering voice, data, and video services over fiber-optic telephone lines. It provides an improvement over the bandwidth of the original ISDN connections, with data rates of up to 2 Mbps. B-ISDN runs on the Asynchronous Transfer Mode (ATM) protocol, accommodating different bit rates and timing constraints for various services.
Why was Broadband ISDN Developed?
The development of ISDN aimed to provide subscribers with a range of services in their homes, including high-speed Internet, high-definition television, video surveillance, and video telephony. These services require different bit rates and timing constraints, such as video and television having greater timing constraints than data.
How Does the B-ISDN Network Operate?
The B-ISDN uses a flexible multiplexing format known as ATM. The services provided by B-ISDN are divided into interactive and distribution services – interactive services involve the exchange of information between two subscribers or between a subscriber and a service provider. The B-ISDN is capable of high-speed packet switching services, making it ideal for transmitting large amounts of data over long distances.
What are the Benefits of B-ISDN?
The primary benefits of B-ISDN include providing high-speed Internet, video telephony, and high-definition television services to subscribers. It can handle different bit rates and timing constraints for various types of services and is suited for transmitting large amounts of data over long distances. Additionally, there were plans to deploy B-ISDN over fiber optic cables, which can provide even faster connections and mitigate costs associated with aging copper cables.
What is the bandwidth of B-ISDN?
B-ISDN provides data rates of up to 2 Mbps, which is an improvement over the original bandwidth of 64Kbps or 128Kbps for ISDN.
What is the ATM protocol?
The Asynchronous Transfer Mode (ATM) protocol is a flexible multiplexing format used by B-ISDN to handle different bit rates and timing constraints for various services.
What are the interactive services provided by B-ISDN?
Interactive services involve the exchange of information between two subscribers or between a subscriber and a service provider.
Overall, B-ISDN is a powerful network standard for delivering a range of high-speed services, including Internet, video, and telephony, to subscribers over fiber-optic cables. It uses a flexible multiplexing format called ATM and provides high-speed packet switching for large data transmissions.