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Understanding Digital Subscriber Line Technology by Thomas Starr,
Understanding Digital Subscriber Line Technology by Thomas Starr,
DSL technologies explained by the experts who created the standards The most complete coverage anywhere: ISDN, HDSL, ADSL, and VDSL The basic infrastructure for the global broadband network of the future is already in place in most homes and offices. Ordinary telephone lines can provide low-cost, high-volume access to the exploding world of telecommunications services that users increasingly rely on. Now, leading experts in the field have come together to share their insights in a single volume, explaining the past, present, and future of all the DSL technologies. Understanding Digital Subscriber Line Technology: Covers the entire DSL family, from ISDN at 144 kb/s to VDSL at 52 Mb/s Details DSL at all layers of protocol, with special emphasis on the physical layer Discusses applications from both provider and end-user points of view Gives an insider's view of the telecommunications standards process Key standards are explained, including transmission line characteristics, data rates, modulation and coding methods, operations procedures, transconvergence layers, protocols, and network architectures. With its inside track and extensive level of detail, Understanding Digital Subscriber Line Technology will be indispensable to telecom and datacom engineers at every level. It also offers a comprehensible explanation of issues in this growing field to managers, marketing experts, and consumers of DSL technology.



ISDN User Part - The ISDN User Part or ISUP is part of the Signaling System #7 which is used to set up telephone calls in Public Switched Telecom Networks. It is specified by the ITU-T as part of the Q.

IDSL - ISDN Digital Subscriber Line (IDSL) transmits data digitally (rather than analog) on a regular twisted pair copper telephone line, across existing ISDN lines, at a rate of 144 kbit/s, slightly higher than a bonded dual channel ISDN connection at 128kbit/s. The digital transmission bypasses the telephone companies central office equipment that handles analog signals.

Terminal adapter - In ISDN terminology, a terminal adapter or TA is a device that connects a terminal (computer) to the ISDN network.

S interface - S interface: For basic rate access in an Integrated Services Digital Network (ISDN) environment, a user-to-network interface reference point that (a) is characterized by a 4 wire, 144 kbit/s (2B+D) user rate, (b) serves as a universal interface between ISDN terminals or terminal adapters and the network channel termination, (c) allows a variety of terminal types and subscriber networks, such as PBXs, local area networks (LANs), and controllers, to be connected to the network, and (d) operates at 4000 ...



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