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Verification.book Page 43 Monday, January 19, 2004 1:40 PM
Verification Manual
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13 Ensure the OmniBER OTN Laser is ON.
14 Select Eye/Mask Mode, Mask Test. Select Filter and ensure
it is set to OC-192 (9.95Gb/s), ON
15 Change the mask to OTU-2.
16 Select oscilloscope Autoscale and allow the oscilloscope to
find signal and trigger inputs
17 Start Mask Test and check the optical output meets the
OTU-2 mask on
18 Set the oscilloscope to Eye Measure mode and set up to
measure the Average Power (in dBm) and Extinction Ratio.
Ensure Vertical Calibration and Extinction Ratio Calibration have been
NO TE
performed for the oscilloscope channel and vertical sensitivity range to
ensure measurement accuracy. Refer to oscilloscope information/Help if
necessary.
19 Check the average optical power is between –1 to +2 dBm.
Check the extinction ratio is greater than 8.2 dB and record
the measured value.
20 Tests are now complete. Set the laser to OFF before
disconnecting setup.
Performance Tests
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