Exfo MAX-700 Manual do Utilizador Página 21
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Introducing the MAX-700
MAX-700 9
OTDR Basic Principles
OTDR Basic Principles
An OTDR sends short pulses of light into a fiber. Light scattering occurs in
the fiber due to discontinuities such as connectors, splices, bends, and
faults. An OTDR then detects and analyzes the backscattered signals. The
signal strength is measured for specific intervals of time and is used to
characterize events.
The OTDR calculates distances as follows:
where
c = speed of light in a vacuum (2.998 x 10
8
m/s)
t = time delay from the launch of the pulse to the reception of the
pulse
n = index of refraction of the fiber under test (as specified by the
manufacturer)
Distance
c
n
---
t
2
---
=
- User Guide 1
- End-User License Agreement 3
- MAX-700 ix 9
- Contents 10
- Certification Information 11
- 1 Introducing the MAX-700 13
- Battery LED 14
- Touchscreen 14
- Introducing the MAX-700 15
- LED Indicators Description 18
- Function Buttons Description 19
- Trace Acquisition Modes 19
- Optional Software Package 20
- Data Post-Processing 20
- OTDR Basic Principles 21
- 10 MAX-700 22
- Power Sources 23
- 2 Safety Information 25
- Laser Safety Information 26
- Electrical Safety Information 27
- 3 Getting Started with Your 29
- 18 MAX-700 30
- Device Details 31
- MAX-700 21 33
- 22 MAX-700 34
- MAX-700 23 35
- Turning On or Off the Unit 36
- 26 MAX-700 38
- MAX-700 29 41
- 30 MAX-700 42
- MAX-700 31 43
- 32 MAX-700 44
- Activating Software Options 45
- 34 MAX-700 46
- 36 MAX-700 48
- 38 MAX-700 50
- MAX-700 43 55
- 44 MAX-700 56
- MAX-700 45 57
- 46 MAX-700 58
- 48 MAX-700 60
- Setting Macrobend Parameters 61
- 50 MAX-700 62
- 5 Testing Fibers in Auto Mode 63
- 52 MAX-700 64
- MAX-700 53 65
- 6 Testing Fibers in Advanced 67
- 56 MAX-700 68
- MAX-700 57 69
- 58 MAX-700 70
- 60 MAX-700 72
- MAX-700 61 73
- Acquisition Time 75
- MAX-700 65 77
- Parameter-setting dials 77
- Selection 77
- MAX-700 67 79
- Acquisition 80
- MAX-700 69 81
- Setting Pass/Fail Thresholds 82
- when you open a trace file 83
- Test Default Minimum Maximum 83
- 72 MAX-700 84
- MAX-700 75 87
- 76 MAX-700 88
- MAX-700 77 89
- 78 MAX-700 90
- 80 MAX-700 92
- Finder Traces 94
- MAX-700 83 95
- Fault Finder File Name 96
- MAX-700 85 97
- 86 MAX-700 98
- Check for Fault Finder 99
- 88 MAX-700 100
- Keyboard 101
- 90 MAX-700 102
- MAX-700 91 103
- Selecting the Distance Units 104
- 8 Customizing the OTDR 107
- Application 107
- 96 MAX-700 108
- MAX-700 97 109
- 98 MAX-700 110
- 100 MAX-700 112
- MAX-700 101 113
- 102 MAX-700 114
- MAX-700 103 115
- 104 MAX-700 116
- 106 MAX-700 118
- 9 Analyzing Traces and Events 119
- Graph View 120
- Linear View 122
- MAX-700 111 123
- Summary Table 124
- MAX-700 113 125
- Events Tab 126
- Analyzing Traces and Events 129
- Measure Tab 130
- Trace Info. Tab 130
- MAX-700 119 131
- 120 MAX-700 132
- Selecting the Default View 133
- Acquisitions 135
- 124 MAX-700 136
- Using Zoom Controls 137
- Zoom window 140
- MAX-700 129 141
- To d i s p l a y a bla c k 141
- Customizing the Event Table 142
- Displaying or Hiding a Trace 144
- 134 MAX-700 146
- MAX-700 135 147
- MAX-700 137 149
- 138 MAX-700 150
- MAX-700 139 151
- IMPORTANT 152
- Modifying Events 153
- 142 MAX-700 154
- Inserting Events 157
- Deleting Events 159
- Managing Comments 160
- MAX-700 151 163
- Loss and attenuation 163
- Threshold at 0.05 dB 165
- Threshold at 0.1 dB 165
- Threshold at 0.15 dB 165
- 154 MAX-700 166
- MAX-700 155 167
- 156 MAX-700 168
- MAX-700 157 169
- Reflective Ends of Fiber 170
- Swapping Traces 173
- Opening Trace Files 174
- File Type Zoom Marker 175
- 164 MAX-700 176
- 10 Analyzing the Results 179
- Manually 179
- 168 MAX-700 180
- Using Markers 181
- 170 MAX-700 182
- Least-Square Approximation) 183
- 172 MAX-700 184
- MAX-700 173 185
- A-B LSA loss 185
- 174 MAX-700 186
- Getting Reflectance 190
- MAX-700 179 191
- OTDR Test Application 193
- OTDR Trace File Compatibility 194
- File generated with 195
- 184 MAX-700 196
- 12 Creating and Generating 197
- 186 MAX-700 198
- Generating a Report 199
- MAX-700 189 201
- 13 Using the OTDR as a Light 205
- 194 MAX-700 206
- 14 Setting Up Your Unit 209
- 198 MAX-700 210
- Setting Up Your Unit 211
- 6b. Tap the Advanced button 211
- 200 MAX-700 212
- MAX-700 201 213
- Recalibrating the Touchscreen 214
- 4. Tap Calibrate 215
- 204 MAX-700 216
- Right-Click Feature 217
- 4. Select the Setting tab 218
- 5. Tap the Option button 218
- MAX-700 207 219
- 208 MAX-700 220
- MAX-700 209 221
- 210 MAX-700 222
- MAX-700 211 223
- To b ro ws e 223
- Configuring Network Printers 225
- 214 MAX-700 226
- 216 MAX-700 228
- To add new input languages: 229
- 3. Select the Languages tab 229
- MAX-700 219 231
- 220 MAX-700 232
- Setting Date and Time Formats 233
- 222 MAX-700 234
- 224 MAX-700 236
- MAX-700 225 237
- 226 MAX-700 238
- MAX-700 227 239
- MAX-700 229 241
- 230 MAX-700 242
- Setting Other Parameters 243
- 15 Working with Your Unit 245
- 234 MAX-700 246
- Printing Documents 246
- Viewing PDF Files 248
- Taking Screen Captures 249
- 238 MAX-700 250
- Captures 252
- MAX-700 241 253
- 242 MAX-700 254
- Working with Your Unit 255
- Reading Audio and Video Files 257
- Browsing the Web 260
- Accessing Other Tools 261
- Power Meter and VFL 263
- MAX-700 253 265
- 18 Managing Data 267
- 256 MAX-700 268
- MAX-700 257 269
- 258 MAX-700 270
- 260 MAX-700 272
- MAX-700 261 273
- Managing Data 274
- 8a. Tap Browse 275
- 264 MAX-700 276
- MAX-700 265 277
- 266 MAX-700 278
- MAX-700 267 279
- 9. Tap Connect 281
- 270 MAX-700 282
- 272 MAX-700 284
- MAX-700 273 285
- 274 MAX-700 286
- 276 MAX-700 288
- MAX-700 279 291
- 280 MAX-700 292
- 2. Tap USB Data Mover 293
- 3. Tap User Preferences 293
- 4a. Tap Add a Folder 294
- MAX-700 283 295
- 284 MAX-700 296
- MAX-700 285 297
- MAX-700 287 299
- MAX-700 289 301
- 290 MAX-700 302
- Working With TightVNC 302
- Computer 304
- MAX-700 295 307
- 296 MAX-700 308
- Accessing Your Unit Remotely 309
- 3. Select the Exceptions tab 309
- 20 Maintenance 311
- Recharging the Main Battery 315
- Replacing Batteries 317
- 306 MAX-700 318
- 308 MAX-700 320
- Verifying Your MAX-700 321
- 310 MAX-700 322
- Verif ying Your MAX-700 323
- 312 MAX-700 324
- 314 MAX-700 326
- 316 MAX-700 328
- Recalibrating the Unit 329
- Recycling and Disposal 329
- 21 Troubleshooting 331
- OTDR-Related Problems 333
- 322 MAX-700 334
- Solving Common Problems 334
- Problem Cause Solution 334
- MAX-700 325 337
- 326 MAX-700 338
- Troubleshooting 339
- 328 MAX-700 340
- MAX-700 329 341
- 330 MAX-700 342
- MAX-700 331 343
- 332 MAX-700 344
- MAX-700 333 345
- Transportation 346
- 22 Warranty 347
- Service and Repairs 349
- 338 MAX-700 350
- A Technical Specifications 351
- GENERAL SPECIFICATIONS 352
- VISUAL FAULT LOCATOR (VFL) 352
- ACCESSORIES 352
- LASER SAFETY 352
- B Description of Event Types 353
- Span Start 354
- Span End 354
- Short Fibers 354
- Continuous Fiber 355
- End of Analysis 356
- Non-Reflective Event 357
- Reflective Event 358
- Positive Event 359
- Launch Level 360
- Fiber Section 361
- Merged Event 362
- MAX-700 351 363
- Pass/Fail Tests 364
- All Event Types Are Tested 365
- 354 MAX-700 366
- MAX-700 355 367
- MAX-700 359 371
- MAX-700 361 373
- MAX-700 363 375
- MAX-700 365 377
- ₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩ 379
- MARKING REQUIREMENTS 380
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