Viavi OTDR 41 A Series, Руководство пользователя

Страница: 63 / 148

Chapter 3 Launching a reflectometry test and displaying results
Performing OTDR acquisitions
User Manual 700MAN201 Rev. 002 45
Multi-wavelength acquisition
If the module possesses several lasers, to perform successive acquisitions on all the
wavelengths:
1 In the S
ETUP
menu, select Acquisition > Laser and ensure that several lasers
are selected (or select All if a module with only one OTDR port is used).
2 Start the acquisition by pressing the S
TART
button.
3 Once the acquisition for the first wavelength is finished, the acquisition for the
following wavelength starts automatically.
The different traces appear in the same window and can be handled similarly to overlaid
traces (see
"Overlay trace function" page 68 ).
Actions on trace during acquisition
During an acquisition, several actions are available on results in progress.
Actions on Display
• Positioning Cursors A and B
Click on the Cursor line on the trace to select the cursor, and click on the trace:
–
Set both cursors A & B to control distance between two points.
– Set one cursor A or B to get the distance from one point.
– Set one cursor A or B to zoom on this cursor
• Zooming on trace
Click on the key
or to zoom in or out on the trace.
Click on the key to get an automatic zoom on trace during acquisition.
See “Zoom function” on page 58 )
• Shifting the trace (Expert OTDR Real Time only)
The trace can be shifted vertically or horizontally during the acquisition: Click on
the trace and move upward/downward or toward left or right (see
“Shift function
(Expert OTDR only)” on page 58 )
• Displaying Trace or SmartLink page
Click on
Trace or SmartLink to display either:
– the acquisition trace in progress and the bar graph of time
– the Smart Link page with exclusively the bar graph of time.
OTDR New IHM rev002.book Page 45 Jeudi, 5. mai 2022 11:50 11