Viavi OneAdvisor ONA-800, Getting Started Manual

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Chapter 3
Powermeter and VFL
VFL function
ONA-800 Getting Started Guide
April 2022 22142812, R011 Page 41
Storing results
To save the results of a measurement, click on Save . The results are saved as
configured in “Configuring the File parameters” on page 36
VFL function
The following sections describe the VFL function.
Visual Fault Locator function (VFL)
This function is used to emit a red light signal with a frequency of 1Hz or in continuous
mode into a fiber to detect any defects in the dead zone of the reflectometer, or to iden -
tify it. This function is suitable for short fibers (length < 5 km) or the first few meters of
a long fiber.
To emit a light signal into a fiber
1 Connect the fiber to the VFL port on the connectors panel.
2 Press the Tests button and then select Fiber 1 (ONA-PMVFL) > .
3 Press the VFL button of the Platform to activate the VFL. Figure 31 shows the
VFL button.
Figure 31 VFL button
The Laser On icon appears in the system tray, as shown in Figure 32 .
Figure 32 Laser On icon
4
To deactivate the VFL, press the VFL button for 3 seconds. The
Laser On
icon
disappears from the system tray.
NOTE
Identification is facilitated by the blinking light in the fiber.
CAUTION
Use of controls or adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure.