Agilent Technologies OmniBER OTN Series Performance Verification Manual page 39

Verification.book Page 36 Monday, January 19, 2004 1:40 PM
1
Performance Tests
36
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15 Select oscilloscope Autoscale and allow the oscilloscope to
find signal and trigger inputs.
16 Start Mask Test and check the optical output meets the
mask. See example on
17 Set the oscilloscope to Eye Measure mode and select
Extinction Ratio measurement.
18 Check the extinction ratio is greater than 8.2 dB and record
the measured value.
OC-12/STM-4 Power Level and Eye Mask Tests
19 Change the OmniBER OTN signal rate. Press <Menu>, choose
Tx/Rx > Transmitter Settings > Physical then press
<Select>. Set the Signal Rate to OC12.
20 Select Eye/Mask Mode, Mask Test. Select Filter and set it to
OC-12 (622Mb/s), ON
21 Select Open Mask and open the STM004_OC12.msk.
22 Select oscilloscope Autoscale and allow the oscilloscope to
find signal and trigger inputs.
23 Start Mask Test and check the optical output meets the
mask. See example on
24 Set the oscilloscope to Eye Measure mode and select
Extinction Ratio measurement.
25 Check the extinction ratio is greater than 8.2 dB and record
the measured value.
page 37.
page 37.
Verification Manual