SFF-8472-Rev12.2(ManagementInterface).pdf_SFF-8636讲的是什么

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SFF specifications are available at http://www.snia.org/sff/specifications

or ftp://ftp.seagate.com/sff

This specification was developed by the SFF Committee prior to it

becoming the SFF TA (Technology Affiliate) TWG (Technical Working

Group) of SNIA (Storage Networking Industry Association).

The information below should be used instead of the equivalent herein.

POINTS OF CONTACT:

Chairman SFF TA TWG

Email: SFF-Chair@snia.org

If you are interested in participating in the activities of the SFF TWG, the

membership application can be found at:

http://www.snia.org/sff/join

The complete list of SFF Specifications which have been completed or are currently

being worked on can be found at:

http://www.snia.org/sff/specifications/SFF-8000.TXT

The operations which complement the SNIA's TWG Policies & Procedures to guide the SFF

TWG can be found at:

http://www.snia.org/sff/specifications/SFF-8032.PDF

Suggestions for improvement of this specification will be welcome, they should be

submitted to:

http://www.snia.org/feedback

Published SFF-8472 Rev 12.2

Diagnostic Monitoring Interface for Optical Transceivers Page 3

Foreword

The development work on this specification was done by the SFF Committee, an industry group. The membership

of the committee since its formation in August 1990 has included a mix of companies which are leaders across

the industry.

When 2 1/2" diameter disk drives were introduced, there was no commonality on external dimensions e.g.

physical size, mounting locations, connector type, connector location, between vendors.

The first use of these disk drives was in specific applications such as laptop portable computers and system

integrators worked individually with vendors to develop the packaging. The result was wide diversity, and

incompatibility.

The problems faced by integrators, device suppliers, and component suppliers led to the formation of the SFF

Committee as an industry ad hoc group to address the marketing and engineering considerations of the emerging

new technology.

During the development of the form factor definitions, other activities were suggested because participants in the

SFF Committee faced more problems than the physical form factors of disk drives. In November 1992, the charter

was expanded to address any issues of general interest and concern to the storage industry. The SFF Committee

became a forum for resolving industry issues that are either not addressed by the standards process or need an

immediate solution.

Those companies which have agreed to support a specification are identified in the first pages of each SFF

Specification. Industry consensus is not an essential requirement to publish an SFF Specification because it is

recognized that in an emerging product area, there is room for more than one approach. By making the

documentation on competing proposals available, an integrator can examine the alternatives available and select

the product that is felt to be most suitable.

SFF Committee meetings are held during T10 weeks (see www.t10.org), and Specific Subject Working Groups

are held at the convenience of the participants. Material presented at SFF Committee meetings becomes public

domain, and there are no restrictions on the open mailing of material presented at committee meetings.

Most of the specifications developed by the SFF Committee have either been incorporated into standards or

adopted as standards by EIA (Electronic Industries Association), ANSI (American National Standards Institute)

and IEC (International Electrotechnical Commission).

If you are interested in participating or wish to follow the activities of the SFF Committee, the signup for

membership and/or documentation can be found at:

www.sffcommittee.com/ie/join.html

The complete list of SFF Specifications which have been completed or are currently being worked on by the SFF

Committee can be found at:

ftp://ftp.seagate.com/sff/SFF-8000.TXT

If you wish to know more about the SFF Committee, the principles which guide the activities can be found at:

ftp://ftp.seagate.com/sff/SFF-8032.TXT

Suggestions for improvement of this specification will be welcome. They should be sent to the SFF Committee,

14426 Black Walnut Ct, Saratoga, CA 95070.

Published SFF-8472 Rev 12.2

Diagnostic Monitoring Interface for Optical Transceivers Page 4

Publication History

Revision

Number

Description Date

1.0 Initial Submission of Document, Preliminary 4/5/01

2.0 Draft Second Revision, Preliminary 5/18/01

3.0 Draft Third Revision, Preliminary 6/27/01

4.0 Draft Fourth Revision, Preliminary 10/8/01

5.0 Draft Fifth Revision 11/5/01

6.0 Draft Sixth Revision 11/19/01

7.0 Draft Revision 7.0 01/09/02

8.0 Draft Revision 8.0 02/01/02

9.0 Draft Revision 9.0 03/28/02

9.0 Revision 9.0 Approved for Technical Content 5/02

9.2 Revision 9.2 Submitted for Publication 5/30/02

9.3 Editorial Modifications to rev. 9.2. 9.3 Submitted for Publication 8/01/02

9.4 Add extensions to include additional technologies.

Results of Dec. 5 03 discussions. Includes:

Support for Multiple Application Selection

Reserved values for SFF-8079 in Table 3.1,

Table 3.10, Table 3.12, and Table 3.17.

Additional transceiver type values in Table 3.5

Additional values in Table 3.1a, 3.5a and 3.5b

Additional values in Table 3.12

General editorial modifications.

5/26/04

9.5 Editorial Modifications to rev. 9.4. 9.5 Submitted for Publication. 6/01/04

10.0 Add extensions to the following tables:

Table 3.1b, 3.2, 3.4, 3.5, 3.5b, 3.7, 3.11, 3.12, 3.21

Editorial changes to the following tables:

Table 3.2, 3.3, 3.4, 3.6, 3.7, 3.9, 3.10, 3.17

Add table 3.1a, 3.6a, 3.18a and references to 8079/8431.

2/06/07

10.2 Editorial updates per ballot feedback.

Technical update to Tables 3.1.

6/01/07

10.3 Edits per SFF-8431 12/07/07

10.4 Edits per SFF-8431, add bits in Table 3.5 and add Tables 3.6b and 3.6c for SFF-

8431 and SFF-8461. Add Table 3.1c.

1/30/09

11.0 Edits per FC-PI-5 (16GFC) to tables 3.6a,3.12, 5/21/10

11.1 Table 3-2 Identifier Values and modified to point to SFF-8024 as the reference

for later values and codes.

10/26/12

11.2 Added FC-PI-6 to Table 3.6a Rate Identifier 6/6/13

11.3 Added OM4 to Table 3.1 and Address A0h, Byte 18. Added 3200 MBytes to

Table 3.5 Byte 10 Bit 3.

6/11/13

11.4 Added optional support for: CDR/Retimer in transceiver; Variable Receiver

Decision Threshold; Rate Select logic for 10G/8G with bypassable CDRs; Table

addressing in upper half of address A2h; Laser temperature and TEC current

alarms and warnings; Compliance codes for OTN 2km, 40km and 80km profiles

in G.959.1.

7/24/14

11.8 Introduced a major style change. The addition of Section, Figure, and Table

numbering makes correlation of previous Change History difficult for readers, so

a Cross Reference of Figures and Tables was prepared.

7/31/14

11.9 Re-defined byte 36 of Table 5-4 Transceiver Compliance Codes to be 'Extended

Compliance Codes'

Added definitions of the coding formats for optional laser temperature and TEC

current to Section 9.2.

Added Table 9-3 and Table 9-4 to illustrate the TEC current 2's complement

format.

8/14/14

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