EXFO FTB-7000 OTDR for FTB-200 v2 - Manual (Page 5)

Contents
OTDR v
10 Analyzing Traces and Events ................................................................... 105
Graph View .........................................................................................................................106
Linear View .........................................................................................................................108
Summary Table ...................................................................................................................110
Events Tab ...........................................................................................................................112
Measure Tab .......................................................................................................................116
Trace Info. Tab ....................................................................................................................116
Displaying the Graph in Full Screen ....................................................................................117
Selecting the Default View ..................................................................................................119
Automatically Displaying the Event Table after Acquisitions ...............................................121
Automatically Zooming in on the Fiber Span ......................................................................122
Using Zoom Controls ..........................................................................................................123
Setting Trace Display Parameters ........................................................................................126
Customizing the Event Table ...............................................................................................128
Displaying or Hiding a Trace ...............................................................................................130
Clearing Traces from the Display .........................................................................................132
Viewing and Modifying Current Trace Settings ...................................................................133
Modifying Events ................................................................................................................138
Inserting Events ..................................................................................................................142
Deleting Events ...................................................................................................................144
Changing the Attenuation of Fiber Sections .......................................................................146
Setting the Analysis Detection Thresholds ..........................................................................148
Analyzing or Reanalyzing a Trace ........................................................................................151
Analyzing the Fiber on a Specific Fiber Span .......................................................................153
Enabling or Disabling the Detection of Reflective Ends of Fiber ..........................................154
Swapping Traces .................................................................................................................158
Opening Trace Files .............................................................................................................159
11 Analyzing the Results Manually .............................................................. 163
Selecting the Attenuation and Loss Values that Will Be Displayed ......................................163
Using Markers .....................................................................................................................165
Getting Event Distances and Relative Powers ......................................................................166
Getting Event Loss (Four-Point and Least-Square Approximation) ......................................167
Getting Attenuation (Two-Point and Least-Square Approximation) ....................................172
Getting Reflectance ............................................................................................................174
Getting Optical Return Loss (ORL) .......................................................................................175
12 Managing Trace Files from the OTDR Test Application .......................... 177
Saving a Trace in a Different Format ...................................................................................177
OTDR Trace File Compatibility .............................................................................................178
Copying, Moving, Renaming, or Deleting Trace Files ..........................................................180