S interface: Difference between revisions

Revision as of 01:57, 29 August 2003

Revision as of 13:32, 22 December 2003

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'''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-kb/s (2B+D) user rate, (b) serves as a universal interface between ISDN terminals or [[terminal (telecommunication)|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 48-[[bit]] frames per second, <i>i.e.,</i> 192 kb/s, with a user portion of 36 bits per [[frame (telecommunications)|frame]], <i>i.e.,</i> 144 kb/s.

Source: from [[Federal Standard 1037C]]