HP OMNIBER 718 37718A User Manual page 174

N OTE
HOW TO:
Selecting and Using "Other" Features
Running Self Test
If any or all of these connections are not made the HP 37718A will FAIL
Self Test.
4 Press
RUN/STOP
will be displayed.
The information pertaining to TEST TYPE, TEST NUMBER and
SUBTEST NUMBER will change as the Self Test progresses.
If the HP 37718A is functioning correctly, after a time of at least 1
hour, TEST STATUS PASSED is displayed.
If TEST STATUS [FAIL nnn] is displayed, the HP 37718A should be
returned to a service office for repair.
Run Confidence TESTS
1 Choose TEST TYPE
display.
2 Insert a formatted disk into the instrument disk drive.
3 Make the loopback connections listed below:
Connect Transmit module 75
Connect Transmit module 100/120
120 IN
Connect Transmit module 75
Connect Transmit module 100/120
120 DEMUX
Connect Multirate Analyser IN to OUT
Connect Optical OUT to Optical IN via a 15 dB attenuator.
164
to activate the Self Test. TEST STATUS RUNNING
on the
CONF. TESTS
OUT to Receive module 75
OUT to Receive module 100/
MUX to Receive module 75
MUX to Receive module 100/
OTHER
SELF TEST
IN
DEMUX