EXFO FTB-7000 OTDR Series for FTB-500 - Manual (Page 35)

OTDR 21
Starting the OTDR Application
The main window (shown below) contains all the commands required to
control the OTDR:
The main window will differ from the illustration above if you opened
traces the last time you worked with the OTDR.
Data
display
Control
Center
Title bar
Button bar
Status bar
Split bar