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SFA7700 CMOS and Backup Battery Replacement Instructions | 12
Figure 15
When the voltage reading of the CMOS battery falls below its critical threshold, the system generates
an error event seen in the event logs and noted in the output of
SHOW VOLTAGE ALL
.
Removing and Replacing the CMOS Battery
To remove the CMOS battery, first remove the battery bracket which is attached to the backup
battery pack with two of the four screws in Figure 14 above. In most cases where the CMOS battery
is replaced, the backup battery pack will be as well, so removal of the CMOS battery can be part of
the larger battery removal procedure.
Although the battery itself is identical for all SFA7700 family controllers, there are two types of
connectors (Figure 16).
