ADLINK aTCA-6200A - Manual (Page 19)

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(VARTA CR2032) is 4-5 years with an average on-time of 8 hours per working day at an operating
temperature of 30°C. However, this typical value varies considerably because the life expectancy is
dependent on the operating temperature and standby (shutdown) time of the system in which it
operates. To ensure that the lifetime of the battery has not been exceeded, it is recommended to change
the battery after 3-4 years.
3.2.2 Reset
The aTCA-6200 is automatically reset by a precision voltage monitoring circuit that detects a drop in
voltage below the acceptable operating limit of 4.85V for the 5V line and below 3.2V for the 3.3V line.
Other reset sources include the Watchdog Timer, the face plate push-button switch and also the RESET
signal from the IPMC. The aTCA-6200 responds to any of these sources by initializing local peripherals.
A reset will be generated by the following conditions:
ƒ Power failure, +5 V supply falls below 4.1 V (typ.) or +3.3 V supply falls below 2.93 V (typ.)
ƒ Pushbutton ´RESET" pressed
ƒ Watchdog time-out
ƒ IPMI controller reset