42:
56 Gbit/s interfaces. The OIF completed work on its eighth generation through its CEI-112G project. The OIF has launched its ninth generation with its CEI-224G project. CEI has influenced or has been adopted or adapted in many other serial interface standards by many different standards organizations over its long lifetime. SerDes interfaces have been developed based on CEI for most
85:
The OIF also defined the SerDes Framer
Interface (SFI) family of specifications in parallel with SPI. As a part of the SPI-5 and SFI-5 development, a common electrical interface was developed termed SxI-5. SxI-5 abstracted the electrical I/O interface away from the individual SPI and SFI documents.
41:
interfaces for the industry since 2004, and it has been highly influential. The development of electrical interfaces at the OIF began with SPI-3 in 2000, and the first differential interface was published in 2003. The seventh generation electrical interface, CEI-56G, defines five reaches of
36:
The Common
Electrical I/O (CEI) Interoperability Agreement published by the OIF defines the electrical and jitter requirements for 3.125, 6, 11, 25-28, and 56 Gbit/s SerDes interfaces. This CEI specification has defined
642:
86:
This abstraction laid the groundwork for the highly successful CEI family of
Interoperability Agreements and was incorporated in the original release of CEI 1.0 a generation later.
58:
Throughout the 2000s, the OIF produced an important series of interfaces that influenced the development of multiple generations of devices. Beginning with the donation of the
608:
473:
595:(0.025 Gbit/s) and 50 Mbit/s per wire single ended and were used in OC-3 (155 Mbit/s) applications. PL-3 was a packet extension of the
643:"OIF to Update Industry on Next-Generation Electrical and Optical Interface Projects, including 224 Gbps & Co-Packaging, at DesignCon 2023"
628:
267:
431:
752:
721:
562:
657:"Common Electrical I/O (CEI) - Electrical and Jitter Interoperability agreements for 6G+ bps, 11G+ bps, 25G+, 56G+ and 112G+ bps I/O"
847:
690:
674:"Common Electrical I/O (CEI) - Electrical and Jitter Interoperability agreements for 6G+ bps, 11G+ bps, 25G+, and 56G+ bps I/O"
800:
852:
784:"System Packet Interface Level 4 (SPI-4) Phase 2 Revision 1: OC-192 System Interface for Physical and Link Layer Devices"
722:"Common Electrical I/O (CEI) - Electrical and Jitter Interoperability agreements for 6G+ bps, 11G+ bps and 25G+ bps I/O"
705:"Common Electrical I/O (CEI) - Electrical and Jitter Interoperability agreements for 6G+ bps, 11G+ bps and 25G+ bps I/O"
753:"System Interface Level 5 (SxI-5): Common Electrical Characteristics for 2.488 – 3.125Gbps Parallel Interfaces"
21:
837:
20:(CEI) refers to a series of influential Interoperability Agreements (IAs) that have been published by the
596:
704:
673:
587:
Two earlier generations in this development path were defined by some of the same individuals at the
493:
489:
485:
79:
67:
783:
759:
591:
in 1994 and 1995. These specifications were called UTOPIA Level 1 and 2. These operated at 25
728:
656:
607:
Compliant implementations to the draft CEI-56G IAs were demonstrated in the OIF booth at the
393:
360:
310:
244:
24:(OIF). CEI defines the electrical and jitter requirements for 3.125, 6, 11, 25-28, and 56
8:
477:
78:
defined two generations of devices before they were supplanted by the closely related
842:
814:
496:, FC 2G, InfiniBand SDR, XAUI, 10GBASE-KX4, 10GBASE-CX4, SATA 2.0, SAS-1, RapidIO v1
820:. Washington University in St. Louis (originally published by Ohio State), ~1998.
441:
831:
258:
402:
InfiniBand QDR, 10GBASE-KR, 10GFC, 16GFC, SAS-3, RapidIO v3, Interlaken
356:
352:
348:
306:
302:
298:
254:
63:
691:"OIF CEI Technology For 56 Gbps Available For Wider Industry Adoption"
588:
510:
75:
629:"OIF Launches CEI-112G Project for 100G Serial Electrical Links"
592:
38:
25:
546:
71:
215:
IEEE 802.3ck, Infiniband NDR, 128G Fibre
Channel and others
631:(Press release). Businesswire, 30 Aug 2016. 30 August 2016.
572:
89:
59:
47:
43:
440:
4GFC, 8GFC, InfiniBand DDR, SATA 3.0, SAS-2, RapidIO v2,
801:"OIF shows 56G electrical interfaces & CFP2-ACO"
31:
829:
82:standard in the SPI-5 generation in 2006.
53:
602:
90:Generations of OIF Electrical Interfaces
830:
807:
309:100GBASE-KR4, 100GBASE-CR4 and CAUI4,
683:
599:carried by those earlier interfaces.
776:
697:
793:
745:
714:
666:
649:
635:
621:
70:(SPI) family of packet interfaces.
13:
14:
864:
727:. OIF, Sept 2011. Archived from
758:. OIF, Oct 2005. Archived from
848:Synchronous optical networking
66:in 2000, the OIF produced the
32:CEI, the Common Electrical I/O
1:
614:
22:Optical Internetworking Forum
803:. Gazzettabyte, 25 Mar 2015.
7:
10:
869:
853:Fiber-optic communications
556:0.1 Gbit/s (single ended)
526:OC-48 (2.488 Gbit/s)
253:IEEE 802.3bs and 802.3cd,
152:
147:
140:
135:
128:
119:
114:
109:
104:
99:
96:
611:in 2015, 2016 and 2017.
609:Optical Fiber Conference
301:EDR, 32G Fibre Channel,
277:CEI-28G (added 25G LR)
68:System Packet Interface
54:CEI direct predecessors
28:electrical interfaces.
286:28 Gbit/s (25 for LR)
815:"ATM Physical Layers"
603:Public demonstrations
18:Common Electrical I/O
532:HyperTransport 1.03
838:Digital electronics
789:. OIF, 15 Oct 2003.
645:. OIF, 11 Jan 2023.
571:(From PMC-Sierra's
461:SxI-5 and CEI 1.0
363:-4, Interlaken 1.9
313:-4, Interlaken 1.9
710:. OIF, 8 Feb 2014.
176:1600GE thru 200GE
585:
584:
221:PAM-4 and CNRZ-5
209:800GE thru 100GE
860:
822:
821:
819:
811:
805:
804:
797:
791:
790:
788:
780:
774:
773:
771:
770:
764:
757:
749:
743:
742:
740:
739:
733:
726:
718:
712:
711:
709:
701:
695:
694:
693:. OIF, Jan 2018.
687:
681:
680:
679:. OIF, Dec 2017.
678:
670:
664:
663:
662:. OIF, May 2022.
661:
653:
647:
646:
639:
633:
632:
625:
444:3.1, Interlaken
342:100GE thru 25GE
292:100GE thru 25GE
94:
93:
868:
867:
863:
862:
861:
859:
858:
857:
828:
827:
826:
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808:
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768:
766:
762:
755:
751:
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746:
737:
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731:
724:
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707:
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667:
659:
655:
654:
650:
641:
640:
636:
627:
626:
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605:
565:(0.622 Gbit/s)
266:NRZ, PAM-4 and
154:
149:
144:
142:
137:
132:
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125:
123:
121:
116:
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56:
34:
12:
11:
5:
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442:HyperTransport
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98:
91:
88:
55:
52:
33:
30:
9:
6:
4:
3:
2:
865:
854:
851:
849:
846:
844:
841:
839:
836:
835:
833:
816:
810:
802:
796:
785:
779:
765:on 2018-02-19
761:
754:
748:
734:on 2018-01-18
730:
723:
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467:3.125 Gbit/s
466:
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434:(~40 Gbit/s)
433:
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259:Fibre Channel
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181:IEEE 802.3dj
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77:
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65:
62:interface by
61:
51:
49:
45:
40:
29:
27:
23:
19:
809:
795:
778:
767:. Retrieved
760:the original
747:
736:. Retrieved
729:the original
716:
699:
685:
668:
651:
637:
623:
606:
586:
515:SPI-4, 4.2
351:EDR, 32GFC,
84:
57:
35:
17:
15:
520:0.8 Gbit/s
482:2002, 2004
203:116 Gbit/s
200:23-4, 26-7
170:232 Gbit/s
145:influenced
143:adapted or
832:Categories
769:2017-05-08
738:2017-05-08
615:References
486:Interlaken
386:11 Gbit/s
357:IEEE 802.3
349:InfiniBand
336:28 Gbit/s
333:10, 12-14
307:IEEE 802.3
299:InfiniBand
255:Infiniband
247:thru 50GE
238:56 Gbit/s
80:Interlaken
64:PMC-Sierra
50:products.
589:ATM Forum
425:6 Gbit/s
330:CEI 3.0,
280:CEI 3.1
257:HDR, 64G
194:CEI-112G
163:CEI-224G
141:Adopted,
126:per wire
117:per pair
843:Ethernet
559:1 (ref)
419:CEI 1.0
392:OC-768,
380:CEI 2.0
377:CEI-11G
327:CEI-28G
232:CEI 4.0
229:CEI-56G
197:CEI 5.0
155:lations
133:-cation
529:2001-2
511:SPI-4.2
416:CEI-6G
396:, 40GE
359:CAUI4,
150:ranges
129:Typical
110:Clause
76:SPI-4.2
593:Mbit/s
551:SPI-3
474:OC-192
458:SxI-5
432:OC-768
235:16-22
186:PAM-4
173:1160x
122:of bit
102:Title
39:SerDes
26:Gbit/s
818:(PDF)
787:(PDF)
763:(PDF)
756:(PDF)
732:(PDF)
725:(PDF)
708:(PDF)
677:(PDF)
660:(PDF)
597:cells
568:2000
563:OC-12
547:SPI-3
494:SFI-5
490:SPI-5
437:2004
399:2008
394:100GE
355:3.2,
345:2008
339:140x
305:3.2,
295:2011
289:140x
250:2017
245:400GE
241:290x
212:2022
206:580x
153:Modu-
148:Num.
138:pub.
136:Year
131:appli
120:Mult.
105:Pub.
97:Gen.
72:SPI-3
581:NRZ
573:PL-3
538:NRZ
502:NRZ
478:10GE
470:16x
464:4-5
450:NRZ
428:30x
422:6-7
408:NRZ
389:55x
383:8-9
369:NRZ
353:SATA
319:NRZ
303:SATA
274:6.5
268:ENRZ
124:rate
112:#'s
74:and
60:PL-3
48:FPGA
46:and
44:ASIC
16:The
523:4x
361:SAS
311:SAS
283:11
115:Max
107:as
100:IA
834::
578:1
575:)
543:1
535:1
507:2
499:1
492:,
488:,
476:,
455:3
447:2
413:4
405:3
374:5
366:4
324:6
316:4
263:5
226:7
218:4
191:8
160:9
772:.
741:.
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