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Performance Tests
1
Verification Manual
35
9
Start
Mask Test
and check the optical output meets the
mask. See example below.
10
Set the oscilloscope to
Eye Measure
mode and select
Extinction Ratio
measurement.
11
Check the extinction ratio is greater than
8.2 dB
and record
the measured value.
OC-3/STM-1 Power Level and Eye Mask Tests
12
Change the OmniBER OTN signal rate.
Press
<Menu>
, choose
Tx/Rx > Transmitter Settings > Physical
then press
<Select>
. Set the
Signal Rate
to
OC3
.
13
Select
Eye/Mask Mode
,
Mask Test.
Select
Filter
and ensure
it is set to
OC-3 (156Mb/s), ON
14
Select
Open Mask
and open the
STM001_OC3.msk
.
OC-1/STM-0 Eye Mask
N O T E
Ensure Vertical Calibration and Extinction Ratio Calibration have been
performed for the oscilloscope channel and vertical sensitivity range to
ensure measurement accuracy. Refer to oscilloscope information/Help if
necessary.
Verification.book Page 35 Monday, January 19, 2004 1:40 PM
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