Kingfisher KI23400 Series, Руководство по эксплуатации и техническому обслуживанию

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PERFORMANCE VERIFICATION TESTS
KI23400/KI27400 UM-2 -
80 -
with H series meter, repeat the readings for an attenuator setting
of 15 dB only.
7. For multimode instruments, repeat the power readings for
attenuator settings of 15 dB, 20 dB.
8. Repeat the above for 1550nm as required, however, this test
typically only needs performing at one λ .
One Way Autotest
One Way Range and Linearity Test
Test described below allows checking One Way Autotest range and
linearity for one loss test set and verifies tone detector operation. To
test power meter absolute accuracy and linearity, refer to Accuracy
Test, Power Meter Section.
1. Connect the equipment as shown in Figure 14. A single LTS can
also be used, with connections to both ports.
LTS (DUT) Attenuator LTS
Figure 14. Test set up for One Way Range and Linearity Test
2. Switch on all instruments.
3. Set the Light Source to 1310nm and allow to warm up. Press
[Autotest].
4. On the attenuator, set the λ to1310nm and attenuation to 5 dB.
5. Make sure that Autotest is updating. Note the measured optical
power at 1310 nm in Table 7.
6. For singlemode instruments, repeat the power readings for
attenuator settings of 15 dB, 25 dB and 35 dB. For instruments
with H series meter, repeat the readings for an attenuator setting
of 15 dB only.
7. For multimode instruments, repeat the power readings for
attenuator settings of 15 dB, 20 dB.
8. Repeat the above for 1550nm as required, however, this test
typically only needs performing at one λ .
Source
/2-way
port
Meter
port