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Selecting and Using "Other" Features
Running Self Test
Running Self Test
Description Before using the HP 37718A to make measurements, you can run Self
Test ALL TESTS to ascertain the integrity of the HP 37718A. These
tests take between at least 1 hour to complete depending on the options
fitted.
Alternatively you can run Confidence Tests which only takes 2 to 3
minutes to complete. This is not a full verification but performs BER
measurements with internal and external loopbacks fitted.
HOW TO: Run ALL TESTS
1 Choose TEST TYPE on the display.
2 Insert a formatted disk into the instrument disk drive.
3 Make the loopback connections listed below:
Connect Transmit module 75Ω OUT to Receive module 75Ω IN
Connect Transmit module 100/120Ω OUT to Receive module 100/
120Ω IN
Connect Transmit module 75Ω MUX to Receive module 75Ω DEMUX
Connect Transmit module 100/120Ω MUX to Receive module 100/
120Ω DEMUX
Connect Multirate Analyser IN to OUT
Connect Optical OUT to Optical IN via a 15 dB attenuator.
ALL TESTS
OTHER
SELF TEST