EXFO AXS-100 Series OTDR - Manual (Page 83)

OTDR 75
8 Using Your OTDR as a Light
Source
You can use your OTDR as a light source. The source signal uses the OTDR
ports. This signal can be:
³
continuous (constant power over the temperature range, but about
3 dB lower than maximum)
or
³
modulated (270 Hz, 1 kHz or 2 kHz, 270 Hz blink, 1 kHz blink or 2 kHz
blink).
Note: When you switch wavelengths, the modulation remains the same.
W
ARNING
When a source is active, its port emits invisible laser radiation.
Avoid exposure and do not stare directly into the beam. Ensure that
any unused port is properly protected with a cap.