Applied Micro Avago Technologies Broadcom
CZT/Wenzhou
Dell Computer
EMC
Emulex Foxconn
Fujikura DDK
Fujitsu Technology Soltns
Hewlett Packard
HGST
Hosiden
IBM
Lotes
LSI
Luxshare ICT
Mellanox
Meritec
MGE Electronics
Molex
Oclaro
Panduit
Pioneer Electronics
QLogic
Sandisk
Seagate Technology
Shenzhen GLGnet Electronics
Toshiba AEC
Volex
Xyratex
https://www.doczj.com/doc/6017464589.html,
March 31, 2014 Contents
SFF Committee
1 Minutes 1/15/14
4 Agenda
7 Ballot Results
9 SFF-8644 Comments (FCI)
10 SFF-8644 Revision Notes (FCI)
17 SFF-8644 Screw Proposal (FCI)
SFF-8644 SSWG
27 Minutes 3/20/14
29 Minutes 3/27/14
Transceiver SSWG
30 Minutes 2/ 4/14
These minutes describe the activities during T10 week and includes the minutes and presentations of other SSWGs that met during the mailing period.
In attendance at the meeting were:
D. Allan ENDL C. Kao FOXCONN
P. Coddington AMPHENOL INTERCONNECT G. Kotzur DELL COMPUTER
A. Cox SEAGATE D. Landsman SANDISK
M. Czekalski SEAGATE J. Neer MOLEX
F. Fons FOXCONN B. Olawsky HEWLETT PACKARD
D. Gorenc TE CONNECTIVITY D. Schulz MOLEX
P. Hery TOSHIBA TAEC T. Skaar SEAGATE
W. Hubis HUBIS TECH ASSOC D. Wagner FCI
Administrivia
The balloting of specifications older than 5 years on whether to retain or Expire them will continue in the next ballot with 2000 specifications. A vote against retention accompanied by a comment will prompt discussion.
QLogic asked for changes to update SFF-8024 SFF Committee Cross Reference to Industry Products.
PCI
Barry Olawsky reported that Rev 0.7 was going to the editor after there had been lengthy reviews of the edited version, which was returned to the editors.
Form Factors
First drafts of the new revisions of SFF-8200 2.5 inch Form Factor Drives and
Applied Micro Avago Technologies Broadcom
CZT/Wenzhou
Dell Computer
EMC
Emulex Foxconn
Fujikura DDK
Fujitsu Technology Soltns
Hewlett Packard
HGST
Hosiden
IBM
Lotes
LSI
Luxshare ICT
Mellanox
Meritec
MGE Electronics
Molex
Oclaro
Panduit
Pioneer Electronics
QLogic
Sandisk
Seagate Technology
Shenzhen GLGnet Electronics
Toshiba AEC
Volex
Xyratex
https://www.doczj.com/doc/6017464589.html,
SFF-8300 3.5 inch Form Factor Drives had been prepared to replace the existing
EIA-720 and EIA-740 standards.
An issue was uncovered with respect to later generations of SFF-8482 Serial Attachment 2X Unshielded Connector compatible connectors. Datum A changed on SFF-8639, and there is no correlation to the SFF-8482 Datum A used by the disk form factor specifications.
Connectors
A request to classify SFP specifications in the same manner as QSFP in SFF-8024 SFF Committee Cross Reference to Industry Products was discussed. The change affects titling and re-printing of several specifications, and it was agreed to have the Chairman do so without need of a ballot.
SFF-8417 Axial Constructed Copper Cable Flex Testing passed the ballot for Publication.
SFF-8643 Mini Multilane 12 Gb/s 8/4X Unshielded Connector passed the ballot.
Jay Neer had prepared a new revision of SFF-8644 Mini Multilane 12 Gb/s 8/4X Shielded Cage/Connector for the SSWG to review. Doug Wagner presented a list of questions and criticisms regarding:
- The second blocking key
- Mating force: using 62N vs 61.8 N
- Unmating force: using 30N vs 28.2N
- Latch pullout: 100N min vs 75N min.
- Screw interference
The presentation on the latter noted that M2 screws come in 1mm increments, and the variations in PCB thickness can result in insufficient thread retention or the screw extends so far as to prevent successful mating. Doug asked that the snout be reduced in size.
The SSWG expanded to include more interested parties, and Dan Gorenc will host a series of telecons to resolve the above and any other issues.
Scott Shuey provided a new revision of SFF-8670 Multifunction 10 Gb/s 1X Shielded Connector (HSMIO), and asked that it be balloted.
Your comments and vote on the Specifications are invited.
SFF-8661 QSFP+ 28 Gb/s 4X Pluggable Module passed the ballot for Publication, and drew a comment from Netapp that the new revision does not have a Table 6-1 that changes were made to (Section 6 was re-numbered to become Section 5.3).
SFF-8663 passed the ballot for Publication, and drew a comment from TE Connectivity on editorial issues that needed attention.
Applied Micro Avago Technologies Broadcom
CZT/Wenzhou
Dell Computer
EMC
Emulex Foxconn
Fujikura DDK
Fujitsu Technology Soltns
Hewlett Packard
HGST
Hosiden
IBM
Lotes
LSI
Luxshare ICT
Mellanox
Meritec
MGE Electronics
Molex
Oclaro
Panduit
Pioneer Electronics
QLogic
Sandisk
Seagate Technology
Shenzhen GLGnet Electronics
Toshiba AEC
Volex
Xyratex
https://www.doczj.com/doc/6017464589.html,
High Speed Testing
Although SFF-8461 SFP+ Copper Active Cables and Alternate Test Methods was not a completed project, the members present agreed that it should be published as-is because the contents have merit.
Your comments and vote on the Specifications are invited.
Transceivers
Editor Barry Olawsky had reviewed the possible changes SFF-8679 QSFP+ 4X Electrical Specification and concluded that few were needed. A new revision is being prepared. Incomplete Items
Paul Coddington and the chair have not made progress on neutering Wipe definitions to cover any connector.
Jay Neer to provide new revisions of:
SFF-8662 QSFP+ 28 Gb/s 4X Connector (Style A)
SFF-8682 QSFP+ 14 Gb/s 4X Connector
Membership
Micron did not renew and Jess-Link joined. The membership stands at 46.
https://www.doczj.com/doc/6017464589.html, provides members with access to minutes and a link to the specifications. An ID and password is necessary to access the Members Only area. Employees of member companies can apply on line, access ID and password will be advised by email.
Ballots and other content are distributed over the SFF reflector, to subscribe contact dal@https://www.doczj.com/doc/6017464589.html,
Documentation
The list of completed SFF Specifications and those currently being worked on by the SFF Committee can be found at ftp://https://www.doczj.com/doc/6017464589.html,/sff/SFF-8000.TXT.
SFF Specifications are located at ftp://https://www.doczj.com/doc/6017464589.html,/sff
To receive documentation see https://www.doczj.com/doc/6017464589.html,/ie/join.html
Meeting Schedule
The SFF Committee meets on Wednesday of T10 week, see https://www.doczj.com/doc/6017464589.html,/meeting.htm for location and accommodation details.
The schedule of SSWGs can be found at ftp://https://www.doczj.com/doc/6017464589.html,/sff/CALENDAR.TXT.
SFF MEETING AGENDA
Wednesday of T10 Week
1. Opening remarks and introductions
2. Approval of the agenda
3. Distribute attendance sheet
4. Administrative
Approval of minutes
Patent Policy (ftp://https://www.doczj.com/doc/6017464589.html,/sff/SFF-8060.TXT)
Antitrust Guidelines (ftp://https://www.doczj.com/doc/6017464589.html,/sff/SFF-8023.TXT)
Meeting Agenda: https://www.doczj.com/doc/6017464589.html,/ftp/t10/sff-agnd.htm
5. Action Items/Presentations
EIA: SFF-8086/88 passed first ballot and SFF-8436 with EIA editor
Which specifications should go to EIA next?
8300 has been prepared and forwarded to Alvin Cox
8200 has been prepared and critiqued by Alvin Cox
Action: Synchronize 'look and feel' of all the specs
Ballot Originally mailed March 3, but nobody voted...
Re-mailed successfully on March 9
PCI SIG Barry Olawsky
Template Sanitize 'Wipe' in Glossary to be generic to any connector Work w/Paul
SFF-8024 Align SFP to the same manner as QSFP
SFF-8461 Should PDF be balloted as-is?
SFF-8644 Is there really a problem w/G20?
SFF-866x/868x Figures being 'harmonized' not acceptable for inclusion SFF-8679 Barry Olawsky and Darian Schulz
Update Shielded Cables Common Management Interface
Candidates for Expiration per Dan Colegrove's request
6. Ballot(s)
7. Projects
SFF-8461 SFP+ Copper Active Cables and Alternate Test Methods
SFF-8631 Serial Attachment 12 GHz 8/4X Unshielded Connector
SFF-8643 Mini Multilane 12 Gb/s 8/4X Unshielded Connector
SFF-8645 Mini Multilane 24 Gb/s 8/4X Shielded Cage/Connector
SFF-8647 Mini Multilane 14 Gb/s 12X Shielded Cage/Connector
SFF-8648 Mini Multilane 28 Gb/s 12X Shielded Cage/Connector
SFF-8654 0.6mm 24 Gb/s 8X Unshielded I/O Connector
SFF-8660 Variable Power Supply for Pluggable Modules/Hosts
SFF-8670 Multifunction 10 Gb/s 1X Shielded Connector (HSMIO)
SFF-8679 QSFP+ 4X Electrical Specification
SFF-8682 QSFP+ 14 Gb/s 4X Connector
SFF-8690 Tunable SFP+ Memory Map for ITU Frequencies
SFF-9422 Drive Common Connector Platform Pinouts for USB
SFF-9630 Serial Attachment 12 Gb/s 4X Unshielded Connector Pinouts
SFF-9639 Multifunction 12 Gb/s 6X Unshielded Connector Pinouts
SFF-9680 Serial Attachment 12 Gb/s 2X Unshielded Connector Pinouts
8. SSWG(s)
9. Future schedule of SFF Meetings
1500-xxxx Form Factors and Connectors (Every T10 week)
xxxx-1800 8xxx SSWG as needed
Transceivers (every T11 week)
====================================================================== September Minutes:
Brad Brubaker asked for a change to dimension G20 in SFF-8644 Mini Multilane 12 Gb/s 8/4X Shielded Cage/Connector because customers had complained about being able to override the key. He could not convince everyone that changing the dimension would achieve the desired result
so his recommended change was sent to the reflector for comments and suggestions.
November Minutes:
Jay Neer was prepared to refute Brad Brubaker's claim in September that the G20 dimension in SFF-8644 Mini Multilane 12 Gb/s 8/4X Shielded
Cage/Connector should be changed. Brad suggested that discussion be deferred until he could bring in samples to illustrate the problem.
====================================================================== In SFF-8024, treat SFP same way as QSFP
Before:
After:
Effect: New revisions to change titles and content as needed.
====================================================================== Candidates to be expired from specifications published in 2000 (does not include those specifications which have been standardized by EIA).
SFF-8410 HSS Copper Testing and Performance Requirements
SFF-8420 HSSDC-1 1 Gb/s 1X Shielded Connector
SFF-8551 5.25 inch Form Factor Optical CD Drives
INF-8053 GBIC (Gigabit Interface Converter)
SFF-8009 Unitized Connector for Cabled Drives
======================================================================
Axial Flex MiniML12 Xref QSFP28 Module QSFP14 Cage
46 Members QSFP28 Cage
Specification 8417 8661 8663 8643 8683 8024 Ballot to: P P P A A A
----- ----- ----- ----- ----- ----- ----- ----- All Best | | | | | | | | | AMI | | | | | | | | | Amphenol | | | | | | | | | Applied Micro | | | | | | | | | Avago | | | | | | | | | Broadcom | | | | | | | | | CZT | | | | | | | | | Dell Computer | | | | | | | | | EMC | Y | Y | Y | | Y | Y | | Y | Emulex | | | | | | | | | ENDL | | | | | | | | | FCI | | | | | | | | | Finisar | A| Y | Y | | A| Y | | Y | Foxconn | | | | | | | | | Fujikura/DDK | | | | | | | | | Fujitsu Tech | | | | | | | | | Hewlett Packard | Y | Y | Y | | Y | Y | | Y | HGST | Y | Y | Y | | Y | Y | | Y | Hosiden | | | | | | | | | IBM | | | | | | | | | Intel | | | | | | | | | JDS Uniphase | | | | | | | | | Jess-Link | | | | | | | | | Lotes Tech | | | | | | | | | LSI | | | | | | | | | Luxshare-ICT | | | | | | | | | Mellanox | | | | | | | | | Meritec | | | | | | | | | MGE | | | | | | | | | Molex | A| Y | Y | | Y | Y | | Y | NeoPhotonics | | | | | | | | | NetApp | Y | Y | Y | | Y | Y | | Y | Nextronics | | | | | | | | | Oclaro | | | | | | | | | Panduit | | | | | | | | | Pioneer | | | | | | | | | QLogic | | Y | Y | | | Y | | N | Sandisk | A| A| A| | Y | A| | Y | Seagate | Y | Y | Y | | Y | Y | | Y | Shenzhen | | | | | | | | | Sichuan | | | | | | | | | Sumitomo | | | | | | | | | TE Connectivity | Y | Y | N | | Y | Y | | Y | Toshiba | | | | | | | | | Volex | | | | | | | | | Xyratex | A| A| A| | Y | A| | Y | ----- ----- ----- ----- ----- ----- ----- ----- Favored | 6 | 9 | 8 | | 9 | 9 | | 10 | Against | 0 | 0 | 1 | | 0 | 0 | | 1 | ----- ----- ----- ----- ----- ----- ----- -----
25p SCSI VHDCI
80P SCA-2 SCA-2
47 Members MTRJ DB9
Specification 8040 8072 8430 8441 8451 8480 Ballot to: R R R R R R
----- ----- ----- ----- ----- ----- All Best | | | | | | | AMI | | | | | | | Amphenol | | | | | | | Applied Micro | | | | | | | Avago | | | | | | | Broadcom | | | | | | | CZT | | | | | | | Dell Computer | | | | | | | EMC | Y | Y | Y | Y | Y | Y | Emulex | | | | | | | ENDL | | | | | | | FCI | | | | | | | Finisar | A| A| A| A| A| A| Foxconn | | | | | | | Fujikura/DDK | | | | | | | Fujitsu Tech | | | | | | | Hewlett Packard | Y | Y | Y | Y | Y | Y | HGST | Y | Y | Y | Y | Y | Y | Hosiden | | | | | | | IBM | | | | | | | Intel | | | | | | | JDS Uniphase | | | | | | | Jess-Link | | | | | | | Lotes Tech | | | | | | | LSI | | | | | | | Luxshare-ICT | | | | | | | Mellanox | | | | | | | Meritec | | | | | | | MGE | | | | | | | Micron | | | | | | | Molex | Y | Y | Y | Y | Y | Y | NeoPhotonics | | | | | | | NetApp | Y | Y | Y | Y | Y | Y | Nextronics | | | | | | | Oclaro | | | | | | | Panduit | | | | | | | Pioneer | | | | | | | QLogic | | | | | | | Sandisk | A| A| A| A| A| A| Seagate | Y | Y | Y | Y | Y | Y | Shenzhen | | | | | | | Sichuan | | | | | | | Sumitomo | | | | | | | TE Connectivity | A| A| Y | N | N | N | Toshiba | | | | | | | Volex | | | | | | | Xyratex | Y | Y | Y | Y | Y | Y | ----- ----- ----- ----- ----- ----- Favored | 7 | 7 | 8 | 7 | 7 | 7 | Against | 0 | 0 | 0 | 1 | 1 | 1 |
SFF-8644 Comments from FCI
- Mating Force: We spec 1.7N per contact. I believe others do also. This would equal 61.2N max. The proposal is 60N max. I do not have a huge issue, but would prefer to see 62N
- Un-mating force: We spec 0.8N per contact. I believe this came from a Molex spec. This would equal 28.8N max. They are proposing 30N max. I am ok with this.
- Latched Plug Pullout Force: We believe that the proposed 100N min is not a good value for a few reasons.
1. The manufacturing tolerances of the latch have a significant effect on the
latch retention.
2. As the force increases above 100N, damage to the cage starts to occur due to multi cycle wear to the cage and due to the pull force.
Because of these two items we specify 75N min. It is better to have a cable dislodge vs damaging the board connector. By using a lower min force, you allow for more tolerance without excessively damaging the board connector. With 100N min, you live a little too close to the edge.
- Primary Key Withstand Strength: The proposed is 70N. This is approximately 15lbs. This test can have a lot of variation. We have measured parts and our customers measured the same vintage parts and got better results. This was also the case with competitive parts. The results are greatly affected by where the plug makes contact with the key. If you hit the top of the key, the force is very low. If you hit the base of the key, the force is really high. This is one of those tests that does not tell the whole story. The proposed test procedure only gives you results in a controlled environment and these are not always consistent. The test does not tell you if the product is good and can meet real life expectations. I do not think this should be in the spec because of the test inconsistency and this feature is completely defined by the spec. This does not allow for any improvements. You get what you get.
Michael Scholeno
Product Development Engineer
825 Old trail Road
Etters, Pa 17319
P: (717) 938-7602 F: (717) 938-7681
Michael.Scholeno@https://www.doczj.com/doc/6017464589.html,