ANSI ATIS 1000612-1992 Integrated Services Digital Network (ISDN) - Terminal Adaptation Using Statistical Multiplexing.pdf
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1、 AMERICAN NATIONAL STANDARD FOR TELECOMMUNICATIONS ATIS-1000612.1992(R2013) Integrated Services Digital Network (ISDN) Terminal Adaption Using Statistical Multiplexing As a leading technology and solutions development organization, ATIS brings together the top global ICT companies to advance the ind
2、ustrys most-pressing business priorities. Through ATIS committees and forums, nearly 200 companies address cloud services, device solutions, emergency services, M2M communications, cyber security, ehealth, network evolution, quality of service, billing support, operations, and more. These priorities
3、 follow a fast-track development lifecycle from design and innovation through solutions that include standards, specifications, requirements, business use cases, software toolkits, and interoperability testing. ATIS is accredited by the American National Standards Institute (ANSI). ATIS is the North
4、 American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a founding Partner of oneM2M, a member and major U.S. contributor to the International Telecommunication Union (ITU) Radio and Telecommunications sectors, and a member of the Inter-American Telecommunication Commissi
5、on (CITEL). For more information, visit. AMERICAN NATIONAL STANDARD Approval of an American National Standard requires review by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judg
6、ment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a co
7、ncerted effort be made towards their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedur
8、es not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Sta
9、ndard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedure
10、s of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Notice
11、of Disclaimer their existence does not in any respect preclude anyone, whether he has approvedthe standards or not, from manufacturing, marketing, purchasing, or usingproducts, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standar
12、ds andwill in no circumstances give an interpretation of any American NationalStandard. Moreover, no person shall have the right or authority to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should be ad-
13、dressed to the secretariat or sponsor whose name appears on the title pageof this standard.CAUTION NOTICE: This American National Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise,
14、 or withdraw this standard. Purchasers of American National Standards mayreceive current information on all standards by calling or writing the AmericanNational Standards Institute.Published byAmerican National Standards Institute11 West 42nd Street, New York, New York 10036Copyright 1993 by Exchang
15、e Carriers Standards AssociationAll rights reserved.No part of this publication may be reproduced in anyform, in an electronic retrieval system or otherwise,without prior written permission of the publisher.Printed in the United States of AmericaAPS3C593/42ContentsPageiForeword ii1 Scope12 Normative
16、 references.13 Application.24 Terminal Adaption Protocol 45 Data Link Control Protocol 106 Protocol Specifications for Operation overFrame Relay Bearer Service .117 Protocol Specifications for Operation overCircuit Mode Bearer Service .118 Application of Terminal Adaption Protocol to Terminal Adapto
17、r Functions 22Tables1 Coding of C1 and C2 bits 62 Coding of B and F bits 63 Reserved LLI values for circuit mode applications124 Coding of C/R bit125 SETUP message content156 CONNECT message content 157 RELEASE message content .168 RELEASE COMPLETE message contents 16Figures1 ISDN connection scenari
18、os.22 Protocol Layers used in this standard33 Relationship between layering and frame formats44 Header octet format .55 Control state information octet 76 Address field format for circuit mode applications 127 Cause information element .178 Low layer compatibility information element 179 Logical lin
19、k identifier information element2110 Called party subaddress information element 21AnnexesA TE1 Application25B Mapping of Interface at R Reference Point Circuit to Control State Information28C Clock synchronization. .30D Bibliography.32Foreword (This foreword is not part of American National Standar
20、d T1.612-1992.)The project to revise American National Standard T1.612 was initiated underthe auspices of the Accredited Standards Committee on Telecommunications,T1, as an effort in the Terminal Adaption Subworking Group of T1S1.2.This standard is intended to provide a terminal adaption protocol fo
21、r usebetween data terminal equipment over a public or private ISDN. This revisionto T1.612 extends the use of this protocol for Frame Relay connections aswell as Circuit Mode connections. It is desirable to provide a standardizedprotocol to allow widely implemented non-ISDN protocols to access publi
22、cand private ISDN services. Asynchronous, synchronous HDLC framed, andbit transparent synchronous protocols are all supported by this standard. Thestandard has been written to help define the interface between different cus-tomer terminal elements and assure the interworking of these elements.This s
23、tandard contains four informative annexes. These annexes are forinformation only and are not considered to be part of the standard.Suggestions for the improvement of this standard are welcome. Theyshould be sent to the Exchange Carriers Standards Association, 1200 GStreet NW, Suite 500, Washington,
24、DC, 20005.This standard was processed and approved for submittal to ANSI byAccredited Standards Committee on Telecommunications, T1. Committeeapproval of the standard does not necessarily imply that all committeemembers voted for its approval. At the time it approved this standard,Accredited Standar
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