HP 37718A Installation And Verification Manual page 101

Performance Tests
External Clock/Data Reference Inputs & Clock Reference Output
5 Connect the HP 3335A to the HP 37718A/19A 75Ω 2M REF IN port on
the Clock module.
6 Press ;
RESULTS
7 Press
RUN/STOP
the Alarm leds are off.
8 Press
RUN/STOP
Clock REF OUT
9 Connect the Clock REF Out port to the Frequency Counter and check
that a 2.048MHz signal is present.
MTS Clock - Data
10 Disconnect the HP 3335A Synthesizer from the HP 37718A/19A 75
2M REF IN port.
11 Set the PDH/DSn Test Set to transmit a 2 Mb/s unframed signal.
12 Connect the PDH/DSn Test Set, 75
Ω
75 2M REF IN Port and Recall the DEFAULT SETTINGS as shown
on page 3-4.
13 Set the
TRANSMIT
14 Select CLOCK SYNC FORMAT [2 Mb/s DATA] on the SDH
Display.
TRANSMIT
15 Press
RESULTS
.
TROUBLE SCAN
, check that the display reads NO TROUBLE and all
to halt the measurement.
Ω
display as shown below.
then
TROUBLE SCAN
Output to the HP 37718A/19A
.
RUN/STOP
Ω
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