Exfo FPM-600 Power Meter User Manual download pdf (Page 44)

Using a Light Source (FLS-600 and FOT-600) or VFL

38 FPM/FLS/FOT-600

Sending Source Power Value with Signal

To use the source’s actual output power as reference (FOT-600

only):

1. Connect a fiber between the source and power meter of same unit.

2. Activate the source at the desired wavelength.

3. Match the source and power meter

wavelengths:

 If the source emits an auto-wavelength

signal or is in auto-switching mode (see

Automatically Detecting Wavelength on

page 29 and Using Auto-Switching Mode

on page 35), the power meter automatically matches the source

wavelength.

 Press to switch between pre-selected wavelengths (see

Defining a List of Favorite Wavelengths on page 22).

4. From normal operating mode, hold down and . The unit

displays PREF for a few seconds while saving the value, then returns to

normal mode.

To send the source power value:

1. Activate the source.

2. Change the modulation signal to AUTO or auto-switching.

If you use auto-switching mode, the power value of each wavelength

will automatically be sent.

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Exfo FPM-600 Power Meter User Manual Page 44