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Spirent KB Article
Doc ID: FAQ12874
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GNSS Positioning Simulator: What is the expected life of the CMOS battery fitted to the CPU card?
STR4730 / 4750 / 4760 / 4780 / 4790
GSS7700 / 7730 / 7735 / 7790 / 7800 / 7900
Spirent would expect these batteries to have a minimum service life of approximately 10 years.
When the battery begins to fail or has reached its life expectancy, then you may experience the following symptoms:-
The unit does not boot correctly, requiring a power cycle (GSS8000 users should also see article
The boot sequence takes much longer to complete, anything from 5 - 10 minutes, or longer.
If you begin to experience problems as described above then it is advisable to contact Spirent Global Services as follows
Use the "Open a Service Request" link that you'll find on the right-hand side of the Knowledge Base screen
Confirm your unit model and serial number
Summarise the symptoms that are being experienced
Summarise any trouble-shooting steps that have already been followed
Product : STR4790,STR4780,STR4760,STR4750,STR4730,GSS7790,GSS7735,GSS7700,GSS7800,GSS7900