EXFO FPM-600 Power Meter - Manual (Page 42)

Using a Light Source (FLS-600 and FOT-600) or VFL
36 FPM/FLS/FOT-600
Sending Source Power Value with Signal
Sending Source Power Value with Signal
Your source can transmit a user-defined power value to compatible power
meters (such as FOT-600 and FPM-600) through the fiber. If the reference
source is far from the power meter, you can connect your source to the
power meter to send the reference value. With this feature you can also
correct for power variations.
Note: If you connect a fiber between FOT-600’s source and detector ports, the unit
can use the actual source output power as reference power.
Note: For details about how compatible power meters receive this power value,
see Referencing Your Power Meter to a Source on page 24.
I
MPORTANT
The value sent is not (and will not affect) the source’s actual power.
It is a user-defined value that may not take the optical link’s loss
into account.