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1、ANSI INCITS 293-1996 (R2001) (formerly ANSI X3.293-1996 (R2001) for Information Technology Serial Storage Architecture Physical Layer 1 (SSA-PH1) Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for R
2、esale, 04/29/2007 13:51:27 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:51:27 MDTNo reproduction
3、 or networking permitted without license from IHS -,-,- ANSI X3.293-1996 American National Standard for Information Technology Serial Storage Architecture Physical Layer 1 (SSA-PH1) Secretariat Information Technology Industry Council Approved November 29, 1996 American National Standards Institute,
4、Inc. Abstract This standard defines the physical layer of the Serial Storage Architecture (SSA). SSA defines a serial interface hierarchy to be used for purposes within its distance and performance characteris- tics, including but not limited to storage subsystems. This standard is intended to be us
5、ed with an upper layer protocol e.g., SCSI-2 Protocol (SSA-S2P), and a transport layer e.g., Transport Layer 1 (SSA-TL1). Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:51:
6、27 MDTNo reproduction or networking permitted without license from IHS -,-,- 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. Consen
7、sus is established when, in the judgment 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 obj
8、ections be considered, and that a concerted effort be made toward 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 usi
9、ng products, processes, or procedures 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 interpr
10、etation of an American National Standard 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 w
11、ithdrawn at any time. The procedures 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 Na
12、tional Standards Institute. CAUTION: The developers of this standard have requested that holders of patents that may be required for the implementation of the standard disclose such patents to the publisher. However, neither the developers nor the publisher have undertaken a patent search in order t
13、o identify which, if any, patents may apply to this standard. As of the date of publication of this standard, following calls for the identification of patents that may be required for the implementation of the standard, notice of one or more such claims has been received. By publication of this sta
14、ndard, no position is taken with respect to the validity of this claim or of any rights in connection therewith. The known patent holder(s) has (have), however, filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applican
15、ts desiring to obtain such a license. Details may be obtained from the publisher. No further patent search is conducted by the developer or publisher in respect to any standard it processes. No representation is made or implied that this is the only license that may be required to avoid infringement
16、 in the use of this standard. Published by American National Standards Institute 11 West 42nd Street, New York, New York 10036 Copyright 1996 by Information Technology Industry Council (ITI) All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval sy
17、stem or otherwise, without prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resal
18、e, 04/29/2007 13:51:27 MDTNo reproduction or networking permitted without license from IHS -,-,- i Foreword .iv Introductionviii 1 Scope1 1.1 SSA-PH1 characteristics1 1.2 SSA family of standards .2 2 Normative references.2 3Definitions, symbols, and abbreviations 3 3.1 Definitions .3 3.2 Symbols and
19、 abbreviations.4 4Conventions 5 5 Modulation.5 6Data rate .5 7 Electrical requirements 6 7.1 Line driver .8 7.2 Line receiver13 7.3 Line segment termination .16 7.4 Ground shift.16 7.5 Port connection17 7.6 System level noise margin22 8 Interconnections 23 8.1 Internal connectors 23 8.2 Internal por
20、t connections39 8.3 Internal options bay connections.41 8.4 Internal device power connections42 8.5 External connections43 Tables 1Sustained data rate and maximum distance 6 2SSA physical interconnect schemes .6 3Driver output spectral content.12 4Driver system operating parameters .13 5Driver test
21、parameters13 6Line driver operating requirements13 7Receiver system operating parameters .15 8Receiver test parameters .15 9Receiver operating requirements16 10Electrical requirements for line termination16 11Internal connector options 24 12Pinouts for internal port device connectors39 Contents Page
22、 Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:51:27 MDTNo reproduction or networking permitted without license from IHS -,-,- ii 13Pinout for 4-line internal port device
23、connections.40 14Pinout for 5-line internal port device connections.40 15Pinout for 6-line internal port device connections.41 16TTL input pin parameters41 17TTL output pin parameters41 18Options connector pinouts42 19Power connector pinouts 43 20Pinout for external device connectors .47 21External
24、cable pinouts48 22Transfer impedance requirements for external SSA connections48 Figures 1Relationship of the SSA standards2 2Electrical configuration for SSA serial links .7 3Test points.7 4SSA Port driver implementation example 9 5Relationship between driver currents9 6Test environment for drivers
25、 .10 7Test environment for driver spectral content11 8Driver output spectral content.12 9SSA driver pulse mask .12 10SSA receiver test environment14 11Receiver pulse mask14 12Definition of ground shift.17 13Lines and line segments.18 14Port connection and port connection segments19 15Complex port co
26、nnection20 16Port connection coupler21 17Complex port connection examples using PCCs22 18Internal unitized backplane connector overview.26 19Internal unitized backplane connector detail27 20Internal cable and backplane port connector detail 28 21Internal cable and backplane option connector detail.2
27、8 22Internal cable and backplane power connector detail.29 23Internal cable and backplane connector contact detail .30 24Internal cable and backplane connector contact wipe detail .30 Page Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/
28、1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:51:27 MDTNo reproduction or networking permitted without license from IHS -,-,- iii 25Internal cable and backplane port connector detail (2 ports shown) 31 26Internal cable and backplane option and power connector detail 32 27Internal u
29、nitized device connector overview 33 28Internal unitized device connector detail (top view)34 29Internal unitized device connector detail (end view).35 30Internal device port connector detail .36 31Internal device options connector detail 36 32Internal device power connector detail 37 33Internal dev
30、ice connector retention detail38 34Internal device connector pin sequencing detail 38 35External device connector interface 45 36External cable connector interface46 37Typical construction of external cable .47 Annexes ATransfer impedance testing procedure49 BInternal connector testing procedure.55
31、CExternal connector testing procedure65 DLine fault detection scheme examples.75 ECircuit for degrading signal amplitude and introducing common mode levels.76 FPreferred test configurations for SSA links 78 GImplementation guidelines79 HReference for copper, polymer dielectric, non-equalized SSA cab
32、le assemblies 82 Page Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:51:27 MDTNo reproduction or networking permitted without license from IHS -,-,- iv Foreword (This forew
33、ord is not part of American National Standard X3.293-1996.) This Serial Storage Architecture Physical Layer 1 standard is designed to provide a physical layer acceptable to device vendors, looking for an evolution from parallel SCSI, and systems designers looking for opportuni- ties to exploit more
34、fully the capabilities inherent to a serial bus. This standard was developed by Task Group X3T10.1 of Accredited Standards Committee X3 during 1993-96. The standards approval process started in 1995. Annexes A through C are normative; annexes D through H are informative annexes and are not part of t
35、he standard. Requests for interpretation, suggestions for improvement and addenda, or defect reports are welcome. They should be sent to the X3 Secretariat, Information Technology Industry Council, 1250 Eye Street, NW, Suite 200, Washington, DC 20005-3922. This standard was processed and approved fo
36、r submittal to ANSI by Accredited Standards Committee on Information Technology, X3. Committee approval of the standard does not necessarily imply that all committee members voted for its approval. At the time it approved this standard, the X3 Committee had the following members: James D. Converse,
37、Chair Donald C. Loughry, Vice-Chair Kate McMillan, Secretary Organization RepresentedName of Representative AMP, Inc .Ben Bennett Edward Kelly (Alt.) Apple Computer, Inc. David K. Michael Jerry Kellenbenz (Alt.) AT b) support for optical transducers that allow longer distance connections; c) the lin
38、k makes optimum use of the physical medium by using full-duplex communication to avoid arbitration overhead and turn-around delay; d) full duplex communication achieves an aggregate 40 MB/sec bandwidth (20 MB/sec in each direction) between two ports; e) the cables and connectors are physically compa
39、tible with small form factor devices; f) device connector capable of mating with both backplanes and cables; g) an electrically balanced design that reduces EMI and crosstalk; h) a measurement scheme focusing on interoperability at separable connectors without requiring any internal physical access.
40、 Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:51:27 MDTNo reproduction or networking permitted without license from IHS -,-,- ANSI X3.293-1996 2 1.2 SSA family of standar
41、ds The relationships of the SSA family of standards is illustrated in figure 1. 1.2.1 SSA-S2P Serial Storage Architecture - (SSA-S2P) SCSI-2 Protocol defines the SCSI-2 Protocol used to run on top of the SSA transport layers 1 or 2. 1.2.2 SSA-S3P Serial Storage Architecture - (SSA-S3P) SCSI-3 Protoc
42、ol defines the SCSI-3 Protocol used to run on top of the SSA transport layer 2. 1.2.3 SSA-TL1 Serial Storage Architecture - (SSA-TL1) Transport Layer 1 defines the Transport layer that runs SSA- S2P and runs on SSA-PH1. 1.2.4 SSA-TL2 Serial Storage Architecture - (SSA-TL2) Transport Layer 2 defines
43、the Transport layer that runs SSA- S2P and SSA-S3P and run on SSA-PH1 or SSA-PH2. 1.2.5 SSA-PH1 Serial Storage Architecture - (SSA-PH1) Physical Layer 1 defines the Physical layer that runs SSA- TL1 and SSA-TL2, and consists of the electrical characteristics of the interface and the connectors. 1.2.
44、6 SSA-PH2 Serial Storage Architecture - (SSA-PH2) Physical Layer defines the Physical layer that runs SSA-TL2, and consists of the electrical characteristics of the interface and the connectors. 2 Normative references The following standards contain provisions which, through reference in this text,
45、constitute provisions of this American National Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this American National Standard are encouraged to investigate the possibility of applying the most recent
46、 editions of the Figure 1 - Relationship of the SSA standards Copyright American National Standards Institute Provided by IHS under license with ANSI Licensee=IHS Employees/1111111001, User=OConnor, Maurice Not for Resale, 04/29/2007 13:51:27 MDTNo reproduction or networking permitted without licens
47、e from IHS -,-,- ANSI X3.293-1996 3 standard listed below. Members of IEC and ISO maintain registers of currently valid International Standards, and ANSI maintains registers for American National Standards. ANSI X3.294-1996, Information technology Serial Storage Architecture SCSI-2 Protocol (SSA-S2P
48、) ANSI X3.295-1996, Information technology Serial Storage Architecture Transport Layer 1 (SSA- TL1) ANSI/EIA 364-C-1994, Parts 13, 20, 21, 23, 31, 41, and 46- Electrical Connector/Socket Test Procedures Including Environmental Classifications IEC 512: Electromechanical components for electronic equipment; basic testing procedures and measuring methods 1) IEC 512-4 (1976) Part 4 - Dynamic stress tests 1) IEC 512-5 (1992) Part 5 - Impact tests (free components). static load tests (fixed compon