Agilent Technologies 86038A User Manual page 260

Troubleshooting and Upgrades
6. Reboot the TLS
7. Reboot the PNA
8. Swap GPIB Cables
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1 Exit the ODA application (File > Exit > "agilentoda" > Yes).
2 Reboot the TLS.
3 Wait for the TLS to start up (it will take at least 12 minutes to fully boot). Check
to see if there are any errors or requests for realignment.
4 Start the ODA software.
1 Exit the ODA application (File > Exit > "agilentoda" > Yes).
2 Ensure that all of the instruments are at the proper GPIB addresses.
3 Reboot the PNA.
If the ODA still cannot communicate with the TLS or MWM, try using
different GPIB cables.
Troubleshooting GPIB Communications Problems
Agilent 86038A Optical Dispersion Analyzer, Third Edition