1、 TIA-492AAAD September 2009 Detail Specification for 850-nm Laser-Optimized, 50-m Core Diameter/125-m Cladding Diameter Class la Graded-Index Multimode Optical Fibers Suitable for Manufacturing OM4 Cabled Optical FiberNOTICE TIA Engineering Standards and Publications are designed to serve the public
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22、GES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-492AAAD iDetail specification for 850-nm laser-optimized, 50-m core 1 diameter/125-m cladding diameter class Ia graded-index multimode 2 optical fibers suita
23、ble for manufacturing OM4 cabled optical fiber 3 4 Prepared by TIA TR-42.12 Subcommittee on Optical Fibers and Cables 5 6 Telecommunications Industry Association 2500 Wilson Boulevard Arlington, VA 22201-3834 Detail Specification TIA-492AAAD Electronic Components of Assessed Quality in Accordance wi
24、th Generic Specification TIA-4920000-B Blank Detail Specification TIA-492AA00-A Outline drawing: Description: class Ia graded-index multimode optical fibers Construction: Core diameter: 50 m Cladding diameter: 125.0 m NA: 0.200 Fiber composition: all-glass Coating diameter: a function of cable desig
25、n; nominal value shall be indicated on purchase order Coating composition: usually made from one or more plastic materials or compositions, to protect the fiber during manufacture, handling, and use Application(s): short reach, high bit-rate systems for telephony, distribution and local networks, ca
26、rrying data, voice and/or video services and on-premises intrabuilding and interbuilding fiber installations, including LANs, SANs, Data Centers, PBXs, video, various multiplexing uses, outside telephone cable plant use, and miscellaneous related uses. 7 TIA-492AAAD ii 8 9 10 11 12 13 14 15 16 17 18
27、 19 20 21 22 23 24 25 26 27 This page left blank. 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 TIA-492AAAD iiiContents 53 54 55 Foreword v 56 57 Introduction 1 58 59 1 Scope. 1 60 61 2 Normative references. 1 62 63 64 3 Background information . 3 65 3.1 Required specifi
28、cations. 3 66 3.2 Marking . 3 67 3.3 Numbering system 3 68 3.4 Other requirements . 3 69 3.5 Ordering information . 4 70 3.6 Additional information (not for inspection purposes). 4 71 72 4 Inspection requirements. 5 73 4.1 Qualification approval . 5 74 4.2 Quality conformance Inspection 5 75 76 5 Qu
29、ality assessment tables . 5 77 78 Annex A (normative), Quality Conformance Inspection (QCI) codes and levels 12 79 Annex B (normative), Part-number codes for multicellular attributes. 13 80 Annex C (informative), Surrogate test procedure 15 81 Annex D (informative), Material dispersion specification
30、 . 16 82 Annex E (normative), Fiber differential mode delay (DMD) and calculated effective modal 83 bandwidth (EMBc) requirements 17 84 Annex F (informative), Modal bandwidth considerations and transmitter requirements 20 85 Annex G (informative), Bandwidth nomenclature explanation . 22 86 Annex H (
31、informative), References 23 87 88 Table 1 - Dimensional specifications . 7 89 Table 2 - Mechanical specifications . 8 90 Table 3 - Optical specifications 9 91 Table 4 - Environmental specifications 11 92 Table E.1 - DMD templates 17 93 Table E.2 - DMD interval masks 17 94 Table E.3 - DMD weightings
32、19 95 Table G.1 - Bandwidth nomenclature explanation . 22 96 TIA-492AAAD iv 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 This page left blank. 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 TIA-492AAAD v141 142 Foreword
33、 143 144 145 (This Foreword is not part of this Standard.) 146 147 This document comes from TIA Project Number 3-0356, formulated under the cognizance of 148 TIA TR-42, Engineering Committee on Telecommunications Cabling Systems, and TR-42.12, 149 Subcommittee on Optical Fibers and Cables. 150 151 T
34、here are 8 annexes: Annexes A, B and E are normative; Annexes C, D, F, G and H are 152 informative. 153 154 Key Words: differential mode delay (DMD), effective modal bandwidth (EMB), calculated 155 effective modal bandwidth (EMBc), minimum calculated effective modal bandwidth (minimum 156 EMBc or mi
35、nEMBc), laser optimized, multimode, OM4, and detail specification 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 TIA-492AAAD vi 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 This page left blank. 195 196 197 198 199 200 201 202 203 204 205 2
36、06 207 208 209 210 211 212 213 214 215 216 217 218 219 TIA-492AAAD 1 Detail specification for 850-nm laser-optimized, 50-m core 220 diameter/125-m cladding diameter class Ia graded-index multimode 221 optical fibers suitable for manufacturing OM4 cabled optical fiber 222 223 224 225 226 Introduction
37、 227 228 229 This Standard enables end users and manufacturers of fiber-optic cable to specify a high 230 bandwidth optical fiber optimized for enhanced performance at 850 nm. This Specification, in 231 conjunction with Generic Specification TIA-4920000-B and Sectional Specification TIA-232 492A000-
38、A, follow the specification structure of the National Electronic Components Quality 233 Assessment System (NECQ). 234 235 236 237 1 Scope 238 239 240 This Standard applies to class Ia, graded-index, 50/125 m multimode optical fiber used as a 241 component in the manufacture of fiber-optic cable. 242
39、 243 Applications include, but are not restricted to, the following: support for short reach, high bit-rate 244 systems in telephony, distribution and local networks, carrying data, voice and/or video services 245 and on-premises intrabuilding and interbuilding fiber installations, including LANs, S
40、ANs, Data 246 Centers, PBXs, video, various multiplexing uses, outside telephone cable plant use, and 247 miscellaneous related uses. 248 249 250 251 2 Normative references 252 253 254 The following standards contain provisions that, through reference in this text, constitute 255 provisions of this
41、Standard. At the time of publication, the editions indicated were valid. All 256 standards are subject to revision, and parties to agreements based on this Standard are 257 encouraged to investigate the possibility of applying the most recent editions of the standards 258 published by them. 259 260
42、- TIA-4920000-B, Generic Specification for optical fibers; 261 262 - TIA-492A000-A, Sectional Specification for class Ia graded-index multimode optical fibers; 263 264 - TIA-492AA00-A, Blank Detail Specification for class Ia graded-index multimode optical fiber. 265 266 (Hereafter in this document,
43、the above documents will be referred to as the Generic 267 Specification, Sectional Specification, and Blank Detail Specification, respectively.) 268 TIA-492AAAD 2 269 - TIA/EIA-455-B, Standard test procedures for fiber optic fibers, cables, transducers, sensors, 270 connecting and terminating devic
44、es, and other fiber optic components, 271 272 (Specific test procedures (FOTPs) within TIA/EIA-455-B are referenced where applicable and 273 listed here.) 274 275 - FOTP-31 - Proof Testing Optical Fibers by Tension 276 277 - FOTP-48 - Measurement of Optical Fiber Cladding Diameter Using Laser-Based
45、Instruments 278 279 - FOTP-72 - Procedure for Assessing Temperature and Humidity Cycling Aging Effects on 280 Optical Characteristics of Optical Fibers 281 282 - FOTP-78 - IEC 60793-1-40 Optical Fibers Part 1-40: Measurement Methods and Text 283 Procedures - Attenuation 284 285 - FOTP-133 - IEC-6079
46、3-1-22 Optical Fibers - Part 1-22: Measurement Methods and Test 286 Procedures - Length Measurement 287 288 - FOTP-175 - IEC 60793-1-42 Optical Fibers Part 1-42: Measurement Methods and Test 289 Procedures - Chromatic Dispersion 290 291 - FOTP-176 - IEC-60793-1-20 Optical Fibers Part 1-20: Measureme
47、nt Methods and Test 292 Procedures Fiber Geometry 293 294 - FOTP-177 - IEC 60793-1-43 Optical Fibers Part 1-43: Measurement Methods and Test 295 Procedures - Numerical Aperture 296 297 - FOTP-178 - IEC 60793-1-32 Optical Fibers Part 1-32: Measurement Methods and Test 298 Procedures - Coating Stripab
48、ility 299 300 - FOTP-195 - IEC-60793-1-21 Optical Fibers Part 1 21: Measurement Methods and Test 301 Procedures Coating Geometry 302 303 - FOTP-204 - Measurement of Bandwidth on Multimode Fiber 304 305 - FOTP-220 - Differential Mode Delay Measurement of Multimode Fiber in the Time Domain 306 307 - F
49、OTP-234 IEC 60793-1-52 Optical Fibers Part 1 52: Measurement Methods and Test 308 Procedures Change of Temperature 309 TIA-492AAAD 3 310 311 312 3 Background information 313 314 315 3.1 Required specifications 316 317 This Standard takes the entire contents of clause 4 of the Sectional Specification into account. 318 The tables of this document include the minimum list of attributes specified in clause 4 of the 319 Sectional Specification.
