1、 TIA-785-2001 APPROVED: MAY 24, 2001 REAFFIRMED: NOVEMBER 1, 2007 REAFFIRMED: OCTOBER 6, 2014 TIA-785 May 2001100 Mb/s Physical Layer Medium Dependent Sublayer and 1-Mb/s Auto- Negotiation on 850nm Fiber Optics NOTICE TIA Engineering Standards and Publications are designed to serve the public intere
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20、UT SUCH LIMITATIONS. TIAAZIA-785 100 Mb/s Physical Layer Medium Dependent Sublayer and 10 Mb/s and 100 Mb/s Auto-Negotiation on 850 nm Fiber Optics Contents Page 1 INTRODUCTION . 1 1.1 General . 1 2 GENERAL, . 2 2.1 Scope . 2 2.2 Normative References . 2 3 DEFINITIONS, ACRONYMS, AND ABBREVIATIONS .
21、3 3.1 Definitions . 3 3.2 Abbreviations 6 4.1 Functional specifications 7 4.3 Specific requirements and exceptions . 7 Active output interface parameters . 7 4.3.1 1 Center wavelength 7 4.3.1.3 Optical transmit average power range 8 4.3.1.4 Optical transmit pulse rise and fall times . 8 4.3.1.5 Opti
22、cal transmit pulse duty cycle distortion . 8 4.3.1.6 Optical transmit pulse data-dependent jitter 8 4.3.1 . 8 Optical transmit extinction ratio 8 4.3.1.9 Optical transmit pulse envelope . 8 1.2 Purpose 1 4 PHYSICAL MEDIUM DEPENDENT (PMD) SUBLAYER TYPE 100BASE-SX . 7 4.2 General exceptions 7 4.3.1 .
23、4.3.1.2 Spectral width . 8 4.3.1.7 Optical transmit pulse random jitter 8 Active input interface parameters . 10 4.3.2.1 Center wavelength 10 4.3.2.2 Optical receive average power range . 10 4.3.2.3 Optical receive pulse rise and fall times 10 4.3.2.4 Optical receive duty cycle distortion 11 4.3.2.5
24、 Optical receive data-dependent jitter . 11 4.3.2.6 Optical receive random jitter 11 4.3.2.7 Stressed receive sensitivity . 11 4.3.2.8 Receive electrical 3 dB upper cutoff fiequency . 11 Characteristics of the fiber optic medium 12 4.3.3.1 Optical fiber and cable 12 4.3.2 . 4.3.3 4.3.3.2 Fiber Optic
25、 Medium Dependent Interface (FOMDI) 13 i TIMEIA- 7 8 5 4.3.3.3 Crossover function 14 4.3.4 Labeling ReqUiremen 14 10 Mb/S, 100 Mb/S, AND AUTO-NEGOTIATION 15 5.1.1 Objectives 18 5.1.2 Application . 18 5.1.3 Management . 19 5 MEDIA CONVERSION SUBLAYER FOR FIBER OPTIC AND TWISTED PAIR 5.1 Overview 15 5
26、.2 Media Conversion 20 1OBASE-T to 1OBASE-FL Conversion 20 5.2.1.1 Twisted Pair to Fiber Optic Conversion . 20 5.2.1 5.2.1.2 Fiber Optic to Twisted Pair Conversion 20 5.2.2 1 OOBASE-TX to 1 OOBASE-SX Conversion . 21 5.2.2.2 Fiber Optic to Twisted Pair Conversion . 21 5.3 Negotiation Pulse Conversion
27、 . 21 5.3.1 Fiber Link Negotiation Pulse (FLNP) Bursts . 21 5.3.2 Conversion Between FLPs and FLNPs . 23 5.4 LinkMonitor Functions . 23 Link Transmit Control . 24 5.6 State Diagrams 25 Annex A (normative) Stressed Receive Sensitivity Testing 31 Annex B (dormative) Testing Methods and Considerations
28、. 33 B . 1 Testing for total jitter 33 B.2 Random Jitter 33 B.4 Explanation of Jitter Budget Derivation . 33 5.2.2.1 Twisted Pair to Fiber Optic Conversion 21 5.5 B.3 Data Dependent Jitter 33 B.5 Stressed Receive Sensitivity . 35 TIAAZIA-785 This page left blank. . lll TIAAZIA-785 100 Mb/s Physical
29、Layer Medium Dependent Sublayer and 10 Mb/s and 100 Mb/s Auto-Negotiation on 850 nm Fiber Optics 1 INTRODUCTION 1.1 General This standard defines a migation path from 10 Mb/s fiber optic Ethernet compatible applications to 100 Mb/s Fast Ethernet compatible applications using short wavelength (850 nm
30、) signaling. 10BASE-FL, as defined in IEEE Std. 802.3-1998, provides the specifications for 10 Mb/s Ethernet compatible applications using 850 nm wavelength signaling over glass fiber. Within the IEEE Std.802.3-1998, 100BASE-FX provides the specifications for 100 Mb/s Fast Ethernet compatible applic
31、ations using 1300 nm wavelength signaling over glass fiber. This standard provides for the expansion of a 10 Mb/s system to enable 100 Mb/s operation using a common wavelength, thus enabling interoperability. 1.2 Purpose The purpose and intent of this Standard is to provide a clear, simple, and inex
32、pensive upgrade path from 10 Mb/s fiber optic Ethernet compatible applications to 100 Mb/s Fast Ethernet compatible applications using short wavelength (850 nm). This Standard outlines a method for translating between twisted pair media dependent signaling and fiber optic media dependent signaling f
33、or 10 Mb/s, 100 Mb/s, and Auto-Negotiation. The PMD characteristics are outlined in clause 4 of this Standard, with other references listed in clause 2, and the functional characteristics are outlined in clause 5 of this Standard. 1 TMEIA- 7 8 5 2 GENERAL 2.1 Scope This Standard specifies the 100BAS
34、E-X PMD (including MDI) and fiber optic medium for a short wavelength, multimode fiber, 100BASE-SX. In order to form a complete 100BASE-SX Physical Layer it shall be integrated with the 100BASE-X PCS and PMA in accordance with clause 24 of IEEE Std. 802.3-1998, which is assumed incorporated by refer
35、ence. As such, the 100BASE-SX PMD shall comply with the PMD service interface according to clause 24.4.1 of IEEE Std. 802.3- 1998. This Standard also specifies the Media Conversion Sublayer, which extends the Auto-Negotiation function defined in IEEE Std. 802.3-1998 to fiber optic media. With the in
36、troduction of the Media Conversion Sublayer, devices sharing a fiber optic link segment can configure automatically to take advantage of their full capabilities. By exchanging information during an initialization phase, the link partners determine the operational capabilities of each other, and choo
37、se one based on a priority resolution function defined in this Standard. The supported management capabilities allow enabling and disabling the Auto-Negotiation function. It also forces a specific operational data rate and duplex mode. The Media Conversion Sublayer extends the Parallel Detection fun
38、ction to the fiber optic environment. The Parallel Detection function allows for the recognition of 10BASE-FL and 100BASE-SX compatible devices, even when those devices do not include the Auto-Negotiation function. This Standard is intended for LED based systems only. 2.2 Normative References The fo
39、llowing standards contain provisions that, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision; parties to agreements based on this standard are encouraged to investigate the poss
40、ibility of applying the most recent editions of the standards indicated. ANSI and TIA maintain registers of currently valid national standards published by them. ANSI X3.237-1995, Revision 2.1 (1 January 1995), FDDI Low-Cost Fibre Physical Layer-Medium Dependent (LCF-PMD) (ISO/IEC CD 93 14-9) ANSI X
41、3.263-1995, Revision 2.2 (1 March 1995), FDDI Twisted Pair-Physical Medium Dependent (TP-PMD) (ISO/IEC CD 93 14-10). ANSVTIA!EIA-455-50B: 1998, Light Launch Conditions for Long-Length Graded- Index Optical Fiber Spectral Attenuation Measurements ANSVTMEIA-492-AAAA-A: 1998, Detail Specification for 6
42、2.5-pn Core Diametedl25-pn Cladding Diameter Class Ia Graded-Index Multimode Optical Fibers 2 TIAAZIA-785 ANSVEIA/TIA-492AAAB-1998, Detail Specification for 50-pn Core Diameter/l25-pn Cladding Diameter Class Ia Graded-Index Multimode Optical Fibers e ANSVTIA!EIA-526-14A: 1998, Optical Power Loss Mea
43、surements of Installed Multimode Fiber Cable Plant-OFSTP-14A ANSI!TIA!EIA-568-A: 1995, Commercial Building Telecommunications Cabling Standard ANSVTIAAZIA 568-B.3: 2000, Optical Fiber Cabling Components Standard CEVIEC 61754-2: 1996, Type BFOC/2,5 connector family e CEVIEC 61754-4: 1997, Type SC con
44、nector family e IEEE Std. 802.3, 1998 edition: Carrier Sense Multiple Access with Collision Detection (CSMA /CD) Access Me th o d and Phys ica 1 Layer Specifications ISO/IEC 11 801: 1995, Information technology-Generic cabling for customer premises ISO/IEC 9314-1: 1989, Information Processing System
45、s - Fibre Distributed Data Interface (FDDI) Part 1: Token Ring Physical Layer Protocol (PHY) ISO/IEC 9314-3: 1990, Information Processing Systems - Fibre Distributed Data Interface (FDDI) Part 3: Physical Layer Medium Dependent (PMD) 3 DEFINITIONS, ACRONYMS, AND ABBREVIATIONS 3.1 Definitions For the
46、 purposes of this Standard, the following definitions apply. The definitions do not contain mandatory requirements for this Standard. Specific requirements are found in the normative sections of this Standard. 100BASE-SX: Physical Layer specification for 100 Mb/s Fast Ethernet over 850 nm fiber opti
47、c links, as defined by clause 4 of this Standard and by reference to clause 24 of IEEE Std. 802.3-1998. 100BASE-FX: Physical Layer specification for 100 Mb/s Fast Ethernet over 1300 nm fiber optic links, as defined by clauses 24 and 26 of IEEE Std. 802.3-1998. 3 TIMEIA- 7 8 5 10BASE-FL: Medium Attac
48、hment Unit, for 10 Mb/s Ethernet over 850 nm fiber optic links as defined by clause 15 and 18 of IEEE Std. 802.3-1998. 100BASE-TX: Physical Layer specification for 100 Mb/s Fast Ethernet over 2 pairs of Category 5 twisted pair wire, as defined by clauses 24 and 25 of IEEE Std. 802.3-1998. 10BASE-T:
49、Medium Attachment Unit, for 10 Mb/s Ethernet over 2 pairs of Category 3 twisted pair wire, as defined by clause 14 of IEEE Std. 802.3-1998. Auto-Negotiation: The algorithm that allows two devices at either end of a single link segment or of multiple link segments, separated by media conversion, to negotiate a common data service function. attenuation: Level of optical power loss, expressed in decibels. average power: The optical power measured using an average reading power meter when the transmitter is transmitting any dc balanced signal. baseband transmission: A type of data transmiss
