AUTOTEST ONE-WAY OPERATION
KI23400/KI27400 UM-2
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34 -
Autotest One-Way Operation
With the Two-Way tester instruments, you are recommended to use
Two-Way Autotest when possible, however this method is included as
a legacy or backwards compatibility option, or if just one instrument is
to be used.
This One-Way Autotest method works when connecting between the
Two-Way Port and Power Meter, or when performing testing with
another non-Two-Way instrument.
In this test, the Two-Way port operates as an Autotest light source.
Connect a light source to a power meter with an appropriate test lead,
turn on the instruments, then on the
light source
end press [Auto] to
initiate Autotest.
Upon initiating Autotest, the light source will continuously cycle
through available
λ
and the meter will automatically switch to Autotest
mode. The meter detects the correct
λ
, and displays the source power
in dBm, with the
λ
shown at the left-hand side of the display. Up to
three
λ
can be displayed at the same time. To indicate Autotest is on;
‘Auto’ will be flashing.
See Figure 2 at the end of this section for a
sample LCD display.
Light sources with up to 3 active
λ
(excluding VisiTester) per source
port will by default cycle through all available
λ
, unless a
reduced/restricted λ
-set has been selected, which can help speed up
& simplify higher volume testing.
To exit Autotest, on the light source end, press [MENU] or disconnect
a patch lead for more than 8 seconds.
One-Way Referencing
Connect a test reference lead between the Two-way ports on one
instrument to the power meter port on the other instrument, enter
Autotest mode, and set the reference.
To set the reference, enter relative mode, then hold down [Set Ref] for
3 seconds until the instrument beeps finish. The main display will go
to approximately 0 dB, and the reference value is displayed on the left
side of the display.
1.
2.
Absolute power
(dBm)
Loss (dB)
Reference
power (dBm)
Figure 2. LCD display of One-Way Autotest data/result
Test status
indicator for a
wavelength
PASS
Overall test
result
