HP 37718A Installation And Verification Manual page 138

Performance Tests
SDH/SONET Receiver Monitor Levels
7 Connect Cable Simulator STS-1 between the52/155 Mb/s DATA OUT
Port and the attenuator.
8 Press
RESULTS
measurement.
9 Ensure that NO TROUBLE is displayed on the
30 seconds.
10 Press
RUN/STOP
11 Connect the 6dB Fixed Attenuator in the signal path to give a total
path attenuation of 26dB.
12 Press
and select MONITOR LEVEL [26dB].
RECEIVE
13 Press ;
RESULTS
measurement.
14 Ensure that NO TROUBLE is displayed on the
30 seconds.
15 Press
RUN/STOP
16 Remove Cable Simulator STS-1 from the signal path.
17 Press ;
RESULTS
measurement.
18 Ensure that NO TROUBLE is displayed on the
30 seconds.
19 Press
RUN/STOP
STM-1/STS-3
20 Repeat steps 1 to 19 (20dB and 26dB tests) with the
set to SIGNAL [STM-1/STS-3] and Cable Simulator STS-3 fitted in
place of Cable Simulator STS-1.
21 Disconnect all the equipment.
3-70
then
TROUBLE SCAN
to stop the measurement.
then
TROUBLE SCAN
to stop the measurement.
then
TROUBLE SCAN
to stop the measurement.
to start the
RUN/STOP
display after
RESULTS
to start the
RUN/STOP
display after
RESULTS
to start the
RUN/STOP
display after
RESULTS
RECEIVE
display