HP 37718A Installation And Verification Manual page 121

Performance Tests
External Clock/Data Reference Inputs & Clock Reference Output
Procedure
MTS Clock - Clock Format
1 Connect the 52/155 Mb/s DATA OUT port to the 52/155 Mb/s DATA IN
port.
1 Recall the HP37718A/19A Default
Settings as shown on page 3-2 and
set the
OTHER
SETTINGS
display as shown
CONTROL
opposite.
2 Press
TRANSMIT
display as shown opposite.
3 Set the HP 3335A to 2.048 MHz at
+10 dBm.
4 Connect the HP 3335A to the
HP37718A/19A 75Ω 2M REF IN
port on the Clock module.
5 Press ;
RESULTS
.
SCAN
6 Press
RUN/STOP
display reads NO TROUBLE and all the Alarm leds are off.
7 Press
RUN/STOP
Clock REF OUT
8 Connect the Clock REF Out port to the Frequency Counter and check
that a 2.048MHz signal is present.
MTS Clock - Data
9 Disconnect the HP 3335A Synthesizer from the HP37718A/19A 75
2M REF IN port.
10 Set the PDH/DSn Test Set to transmit a 2 Mb/s unframed signal.
and set up the
TROUBLE
, check that the
to halt the measurement.
Ω
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