EXFO FTB-700 for FTB-1 - Manual (Page 5)

Contents
OTDR v
10 Analyzing Traces and Events ................................................................... 101
Graph View .........................................................................................................................102
Linear View .........................................................................................................................104
Summary Table ...................................................................................................................106
Events Tab ...........................................................................................................................108
Measure Tab .......................................................................................................................112
Trace Info. Tab ....................................................................................................................112
Displaying the Graph in Full Screen ....................................................................................113
Selecting the Default View ..................................................................................................115
Automatically Displaying the Event Table after Acquisitions ...............................................117
Automatically Zooming in on the Fiber Span ......................................................................118
Using Zoom Controls ..........................................................................................................119
Setting Trace Display Parameters ........................................................................................122
Customizing the Event Table ...............................................................................................124
Displaying or Hiding a Trace ...............................................................................................126
Clearing Traces from the Display .........................................................................................128
Viewing and Modifying Current Trace Settings ...................................................................129
Modifying Events ................................................................................................................134
Inserting Events ..................................................................................................................138
Deleting Events ...................................................................................................................140
Managing Comments .........................................................................................................142
Changing the Attenuation of Fiber Sections .......................................................................144
Setting the Analysis Detection Thresholds ..........................................................................146
Analyzing or Reanalyzing a Trace ........................................................................................149
Analyzing the Fiber on a Specific Fiber Span .......................................................................151
Enabling or Disabling the Detection of Reflective Ends of Fiber ..........................................152
Swapping Traces .................................................................................................................155
Opening Trace Files .............................................................................................................156
11 Analyzing the Results Manually .............................................................. 161
Selecting the Attenuation and Loss Values that Will Be Displayed ......................................161
Using Markers .....................................................................................................................163
Getting Event Distances and Relative Powers ......................................................................164
Getting Event Loss (Four-Point and Least-Square Approximation) ......................................165
Getting Attenuation (Two-Point and Least-Square Approximation) ....................................170
Getting Reflectance ............................................................................................................172
Getting Optical Return Loss (ORL) .......................................................................................173
12 Managing Trace Files from the OTDR Test Application .......................... 175
Saving a Trace in a Different Format ...................................................................................175
OTDR Trace File Compatibility .............................................................................................176
Copying, Moving, Renaming, or Deleting Trace Files ..........................................................178