Exfo FTB-7000 OTDR for FTB-200 v2 Manuel d'utilisateur Page 318
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Description of Event Types
304 FTB-7000 Series
Launch Level
Launch Level
This event indicates the level of the signal launched into the fiber.
³ The figure above shows how the launch level is measured.
A straight line is plotted using least-square approximation to fit all trace
points in the linear area between the first and second detected events.
The straight line is projected toward the Y-axis (dB) until it crosses the
axis.
The crossing point indicates the launch level.
³ <<<< in the events table indicates that the launch level is too low.
Reflected power
(dB)
Distance
(km)
Launch level
event position
Second event
Launch
level
Linear area
- FTB-7000 Series 1
- Contents 3
- DECLARATION OF CONFORMITY 10
- Domain Reflectometer 15
- 2 FTB-7000 Series 16
- Other models 16
- Main Features 17
- Trace Acquisition Modes 18
- Optional Software Packages 18
- Data Post-Processing 18
- Available OTDR Models 19
- OTDR Basic Principles 22
- 2 Safety Information 25
- Safety Information 26
- 3 Getting Started with Your 27
- Platform: 28
- 1. Turn off your unit 28
- 16 FTB-7000 Series 30
- Turn retaining screws 31
- Bottom panel 31
- 18 FTB-7000 Series 32
- Starting Module Applications 33
- 20 FTB-7000 Series 34
- 24 FTB-7000 Series 38
- 26 FTB-7000 Series 40
- 28 FTB-7000 Series 42
- Setting Macrobend Parameters 43
- 30 FTB-7000 Series 44
- Measurements 45
- 5 Testing Fibers in Auto Mode 47
- 34 FTB-7000 Series 48
- 6 Testing Fibers in Advanced 51
- 38 FTB-7000 Series 52
- 40 FTB-7000 Series 54
- 42 FTB-7000 Series 56
- Acquisition Time 59
- Parameters setting dials 61
- Selection 61
- 48 FTB-7000 Series 62
- 50 FTB-7000 Series 64
- Acquisition 65
- 52 FTB-7000 Series 66
- 54 FTB-7000 Series 68
- ³ when you open a trace file 68
- 56 FTB-7000 Series 70
- 58 FTB-7000 Series 72
- 7Testing Fibers in Template 75
- Restrictions of Template Mode 76
- Acquiring the Reference Trace 78
- 66 FTB-7000 Series 80
- 70 FTB-7000 Series 84
- 72 FTB-7000 Series 86
- Selecting a Reference Trace 88
- 76 FTB-7000 Series 90
- 78 FTB-7000 Series 92
- Finder Traces 94
- Fault Finder File Name 96
- 84 FTB-7000 Series 98
- Check for Fault Finder 99
- 86 FTB-7000 Series 100
- Keyboard 101
- 88 FTB-7000 Series 102
- Selecting the Distance Units 104
- 9 Customizing Your OTDR 107
- 94 FTB-7000 Series 108
- 98 FTB-7000 Series 112
- 100 FTB-7000 Series 114
- OTDR 101 115
- OTDR 103 117
- OTDR 105 119
- Graph View 120
- Linear View 122
- OTDR 109 123
- Summary Table 124
- OTDR 111 125
- Events Tab 126
- OTDR 113 127
- Tooltip identifying the 127
- 114 FTB-7000 Series 128
- Analyzing Traces and Events 129
- Measure Tab 130
- Trace Info. Tab 130
- OTDR 117 131
- 118 FTB-7000 Series 132
- Selecting the Default View 133
- Acquisitions 135
- 122 FTB-7000 Series 136
- Using Zoom Controls 137
- Zoom window 140
- OTDR 127 141
- To di s pl a y a b lac k 141
- Customizing the Event Table 142
- Displaying or Hiding a Trace 144
- 132 FTB-7000 Series 146
- OTDR 133 147
- OTDR 135 149
- 136 FTB-7000 Series 150
- OTDR 137 151
- IMPORTANT 152
- Modifying Events 153
- 140 FTB-7000 Series 154
- Inserting Events 157
- Deleting Events 159
- OTDR 147 161
- Loss and attenuation 161
- ³ Threshold at 0.05 dB 163
- ³ Threshold at 0.1 dB 163
- ³ Threshold at 0.15 dB 163
- 150 FTB-7000 Series 164
- OTDR 151 165
- 152 FTB-7000 Series 166
- OTDR 153 167
- Reflective Ends of Fiber 168
- OTDR 157 171
- Swapping Traces 172
- Opening Trace Files 173
- 160 FTB-7000 Series 174
- Type of file Zoom Marker 174
- 162 FTB-7000 Series 176
- 11 Analyzing the Results 177
- Manually 177
- 164 FTB-7000 Series 178
- Using Markers 179
- 166 FTB-7000 Series 180
- Least-Square Approximation) 181
- 168 FTB-7000 Series 182
- OTDR 169 183
- A-B LSA loss 183
- 170 FTB-7000 Series 184
- Getting Reflectance 188
- OTDR 175 189
- OTDR Test Application 191
- OTDR Trace File Compatibility 192
- File generated with 193
- 180 FTB-7000 Series 194
- 13 Creating Reports 195
- 182 FTB-7000 Series 196
- Generating a Report 197
- OTDR 185 199
- 14 Using the OTDR as a Light 203
- Source or VFL 203
- 190 FTB-7000 Series 204
- 15 Analyzing Traces with the 207
- Bidirectional Analysis 207
- Application 207
- 194 FTB-7000 Series 208
- The main window is displayed 210
- OTDR 197 211
- OTDR 199 213
- 200 FTB-7000 Series 214
- OTDR 201 215
- Measurement 216
- Viewing Results 218
- OTDR 207 221
- Bidirectional 223
- 210 FTB-7000 Series 224
- Unidirectional 224
- OTDR 213 227
- Bidirectional Measurement 229
- 216 FTB-7000 Series 230
- OTDR 217 231
- Span start 231
- Span end 231
- OTDR 219 233
- 222 FTB-7000 Series 236
- 224 FTB-7000 Series 238
- Using Markers to Edit Events 239
- 228 FTB-7000 Series 242
- 230 FTB-7000 Series 244
- 232 FTB-7000 Series 246
- 234 FTB-7000 Series 248
- 236 FTB-7000 Series 250
- 238 FTB-7000 Series 252
- OTDR 239 253
- Setting General Parameters 254
- OTDR 241 255
- Gridlines displayed 255
- 242 FTB-7000 Series 256
- Customizing the Events Table 257
- 244 FTB-7000 Series 258
- Information 260
- Setting Pass/Fail Thresholds 261
- 248 FTB-7000 Series 262
- Test Default Minimum Maximum 262
- 250 FTB-7000 Series 264
- 254 FTB-7000 Series 268
- OTDR 255 269
- 256 FTB-7000 Series 270
- Bidirectional Files 273
- OTDR 261 275
- 262 FTB-7000 Series 276
- Creating Reports 277
- 16 Maintenance 281
- Verifying Your OTDR 284
- Verif ying Your OTDR 285
- 272 FTB-7000 Series 286
- 274 FTB-7000 Series 288
- 276 FTB-7000 Series 290
- Recalibrating the Unit 292
- Recycling and Disposal 293
- 17 Troubleshooting 295
- 282 FTB-7000 Series 296
- Problem Cause Solution 296
- FTB-7X00D-XX-XX-XX 298
- FTB-7200D-XX-XX-XX 298
- FTB-7X00E-XXB-XX-XX 298
- Transportation 299
- 18 Warranty 301
- Service and Repairs 303
- 290 FTB-7000 Series 304
- A Technical Specifications 305
- Technical Specifications 306
- B Description of Event Types 311
- Span Start 312
- Span End 312
- Short Fibers 312
- Continuous Fiber 313
- End of Analysis 314
- Non-Reflective Event 315
- Reflective Event 316
- Positive Event 317
- Launch Level 318
- Fiber Section 319
- Merged Event 320
- OTDR 307 321
- Pass/Fail Tests 322
- All Event Types Are Tested 323
- 310 FTB-7000 Series 324
- OTDR 311 325
- OTDR 315 329
- OTDR 317 331
- OTDR 319 333
- OTDR 321 335
- ₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩ 337
- MARKING REQUIREMENTS 338
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