frequency or ID-tone. Alternatively, press and hold F3 then
use - or + to cycle through all options.
•
To end modulation, press and hold F3 then press Toggle
Centre. Alternatively, press and hold F3 for 3 sec.
•
To return to Home menu, press F1.
Return Loss Menu:
•
At Home menu, press F2 to enter ORL menu.
•
To select operating λ, press - or +.
•
To enter UCAL offset setting mode, press F3 [see quick
reference guide section for User Calibration (UCAL)].
•
To enter Zero Function setting mode, press F3 again [see
quick reference guide section for Zero Function].
•
To exit ORL menu, press F1 to return to Home menu.
Autotest Operation;
•
[1-way Autotest only] To start Autotest, press F4 of the
instrument connected at the source end of a fiber.
•
[2-way Autotest] To start Autotest, press F4 on either one of
the connected instruments.
•
[1-way Autotest only]: To toggle display to show absolute-
power(dBm)/loss(dB)/reference-power(dBm) or absolute-
power in both dBm & watt, press F3 repeatedly.
To show sources' nominal power levels, hold down Toggle
Centre.
•
[2-way Autotest only]: When Autotest starts, a Test
Summary showing losses (dB) of each direction, their
averages and, optional cable length measured is displayed.
To change to display Detail Test showing absolute-power
(dBm), loss (dB), reference-power (dBm) of each direction,
press F3. Press - or + to show data for other active
wavelengths. At this display, hold down Toggle Centre to
show sources' nominal power levels.
To change from showing Test Detail to optional ORL test,
press F3. Press - or + to show ORL data for other active
wavelengths.
Press F3 again now will return display to show Test
Summary.
•
To set reference (for loss and optional length tests only),
press and hold F2 for 3 seconds until beeps stop. The
reference will then update over the next few seconds.
•
To stop / restart display update, press F4.
•
[1-way Autotest only]: To end Autotest, press F1 of the
instrument connected at source end or, disconnect patch
lead for more than 8 seconds.
•
[2-way Autotest only]: To end Autotest, press F1 on either
one of the connected instruments or, disconnect patch lead
for more than 8 seconds.
•
To record data to internal memory in Meter or Autotest
mode, press triangular button above [STORE]. Data will be
stored in the next empty location.
Autotest User-to-User Communication (2-way mode only):