36
Verification Manual
1
Performance Tests
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
page 37
.
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
page 37
.
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.
Verification.book Page 36 Monday, January 19, 2004 1:40 PM
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