Exfo OTDR 2 Instrukcja Użytkownika Strona 148
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Oceniono. / 5. Na podstawie oceny klientów
Analyzing Traces and Events
140 OTDR
Enabling or Disabling the Detection of Reflective Ends of Fiber
The table below shows the differences you will notice in the event table
depending on if you enable the detection of reflective ends of fiber or not.
Option not selected
(conventional analysis)
Option selected
Case
Event on which
span end is set
Loss or
reflectance value
Event on
which span
end is set
Loss or
reflectance
value
Span end
located on a
physical event
that crosses the
end-of-fiber
(EoF) threshold
Non-reflective
fault or
reflective fault
Value as
calculated by the
conventional
analysis
Same as the
conventional
analysis
Same as the
conventional
analysis
Span end
located on a
physical event
whose loss is
below the EoF
threshold
Non-reflective
fault or
reflective fault
Value as
calculated by the
conventional
analysis
If applicable,
reflective fault
(located in
the “noisy”
area)
a
a. The cumulative loss value will remain the same for all elements appearing after the event on which the
span end was set according to the conventional analysis. The span loss value will correspond to the loss
calculated between span start and the event on which the span end was set according to the
conventional analysis.
If applicable,
reflectance value
as calculated by
the conventional
analysis.
b
b. Value is underestimated because the event is located in the “noisy” area.
Span end not
located on any
physical event
End of analysis N/A If applicable,
reflective fault
(located in
the “noisy”
area)
c,d
c. The end-of-analysis event is replaced by a non-reflective event with a loss value of 0 dB.
d. The cumulative loss value will remain the same for all elements appearing after the inserted event. The
span loss value will correspond to the loss calculated between span start and the inserted event.
If applicable,
reflectance value
as calculated by
the conventional
analysis.
b
- User Guide 1
- Contents 3
- Certification Information 7
- 1 Introducing the OTDR 9
- Introducing the OTDR 10
- Main Window 13
- Software Options 14
- Data Post-Processing 14
- OTDR Basic Principles 15
- 2 Safety Information 19
- (Models without VFL) 20
- (Models with VFL) 21
- Threshold at 0.1 dB 39
- Threshold at 0.15 dB 39
- Threshold at 0.05 dB 39
- Setting Macrobend Parameters 43
- Setting Pass/Fail Thresholds 47
- 4Testing Fibers 53
- Testing Fibers 64
- Acquisition Time 68
- 5 Customizing Your OTDR 75
- Selecting the Distance Units 77
- Customizing Your OTDR 82
- Selecting the Default View 84
- 6 Analyzing the Results 91
- Manually 91
- Using Markers 92
- Four-point 95
- A-B LSA loss 98
- 7 Analyzing Traces and Events 101
- Summary Tab 104
- Analyzing Traces and Events 106
- To choose a display mode: 106
- Events Tab 107
- Measure Tab 110
- Linear View 111
- OTDR 107 115
- Using Zoom Controls 117
- 110 OTDR 118
- OTDR 111 119
- 112 OTDR 120
- OTDR 113 121
- Main Trace Reference Trace 123
- Using a Reference Trace 124
- 118 OTDR 126
- Settings 127
- OTDR 121 129
- 122 OTDR 130
- OTDR 123 131
- IMPORTANT 132
- Modifying Events 133
- 126 OTDR 134
- Inserting Events 137
- 130 OTDR 138
- Managing Comments 140
- 134 OTDR 142
- OTDR 135 143
- 136 OTDR 144
- 138 OTDR 146
- Reflective Ends of Fiber 147
- Opening Measurement Files 151
- OTDR Test Application 153
- 9 Creating and Generating 155
- 148 OTDR 156
- Generating a Report 157
- 152 OTDR 160
- 154 OTDR 162
- 10 Using the OTDR as a Light 163
- 156 OTDR 164
- 158 OTDR 166
- 11 Maintenance 167
- 160 OTDR 168
- Cleaning EUI Connectors 168
- Recalibrating the Unit 170
- Recycling and Disposal 171
- 12 Troubleshooting 173
- 166 OTDR 174
- Solving Common Problems 174
- Problem Cause Solution 174
- Transportation 175
- 13 Warranty 177
- Service and Repairs 179
- 172 OTDR 180
- A Technical Specifications 181
- MAX-715B 182
- MAX-720B 183
- MAX-730B 184
- FTB-7200D 185
- FTB-7300E 186
- FTB-7400E 187
- FTB-7500E 188
- FTB-7600E 189
- SPECIFICATIONS 190
- Technical Specifications 191
- FTB-700G Series 192
- B Description of Event Types 193
- Span Start 194
- Span End 194
- Short Fibers 194
- Continuous Fiber 195
- End of Analysis 196
- Non-Reflective Event 197
- Reflective Event 198
- Positive Event 199
- Launch Level 200
- Fiber Section 201
- Merged Event 202
- OTDR 195 203
- Pass/Fail Tests 204
- All Event Types Are Tested 205
- 198 OTDR 206
- OTDR 199 207
- OTDR 203 211
- OTDR 205 213
- OTDR 207 215
- ₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩ 217
- MARKING REQUIREMENTS 218
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