Chapter 16 – Maintenance and Troubleshooting
6 RA331, RA332, AND RA333 TROUBLESHOOTING
6.1 MAINS INDICATOR DOES NOT LIGHT UP
Make sure the terminal is connected;
Make sure there is power supply.
6.2 READY INDICATOR DOES NOT LIGHT UP
If the Ready indicator does not light up, the module has failed the self-test. In such case, contact the
technical support personnel.
6.3 PPS INDICATOR DOES NOT LIGHT UP (ONLY RA333)
Make sure the synchronism signal is present on the processing module;
Make sure the link with the processing module is active.
6.4 LINK WITH THE PROCESSING MODULE IS NOT ACTIVE
Make sure that Link and Act indicators are lit;
Verify that the fiber-optic cables are properly connected in the RA332 and in the processing module;
Verify that the processing module is on;
Make sure the connectors for receiving and transmitting data are not mixed;
Verify that the fiber optic cables are in good condition;
If possible, do the test using another fiber-optic cable;
Make sure that the distance between the processing module and the RA332 does not exceed 2 km;
Verify that the type of fiber is in accordance with the specifications.
If the problem persists, contact technical support at the addresses on the back cover of the manual or access
www.alstom.com/grid/contactcentre.
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