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c) if the CPU battery backup voltage is low and below 3V
A Black reset or low battery backup will result in loss of any online changes and any local key panel assignments
The customers configuration (map data) is stored in flash and not in NVRAM
CPU card will retain data so long as the battery voltage remains above 1.5V. 2.5V
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Solution update low battery voltage changed to 2.5V on Feb 2021 |