3-86
Performance Tests
Multirate Optical Interfaces
28 Connect the output from the Lightwave Converter to the Oscilloscope
using the SMA/BNC adaptor and 50Ω BNC cable.
29 Press or and select SIGNAL [STM-0 OPT]
or [OC-1].
30 Press on the Oscilloscope and adjust the Timebase and
Range to obtain an STM-0/OC-1 waveform.
31 Measure the amplitude of the waveform using the Oscilloscope and
adjust the Optical Attenuator until the amplitude is 150mV pk-pk.
32 Disconnect the output of the Lightwave Converter from the
Oscilloscope and connect instead to the HP 37718A/19A Optical
Module Monitor input.
33 Press and set up the display as shown below.
34 Press then to start the
measurement.
35 After 5 minutes, check that NO TROUBLE is displayed on the
display. Press to stop the measurement.
36 Recall the HP 37718A/19A DEFAULT SETTINGS as shown on page
3-4.
37 Repeat steps 28 to 36 but with [STM-1 OPT] or [OC-3] selected on the
HP 37718A/19A and displays.
38 Recall the HP 37718A/19A DEFAULT SETTINGS as shown on page
3-4.
TRANSMIT
SDH SONET
AUTOSCALE
RECEIVE
RESULTS
TROUBLE SCAN
RUN/STOP
RESULTS
RUN/STOP
TRANSMIT
RECEIVE
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