EXFO FOT-930 Multifunction Loss Tester - Manual (Page 59)

Performing Automated IL/ORL/Length Measurements (F
AS T ES T )
Multifunction Loss Tester 51
Referencing Units for F AS T ES T
To perform a loopback reference:
1. Press F
AS
T
ES
T.
2. In the Ref. Type list, select the Loopback
reference type, then press Enter. An
illustration of the connection is shown with
previous reference values (if any).
3. Connect a reference patchcord from the F
AS
T
ES
T
port to the power meter adapter.
4. Press Take Reference (F1/F2 key). After a few
seconds, the unit displays new reference values
for each wavelength. If values are not acceptable,
try to clean connectors and repeat this step.
5. Disconnect the reference patchcord from the
power meter adapter only and connect it to the fiber under test.
6. Repeat the procedure with the second unit.
I
MPORTANT

You can turn off the unit without losing the reference.

If you disconnect the patchcord from the F
AS T ES T port, you must
take a new reference.
Reference
patchcord
Adapter