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Note: The low limit of the DC power supply (10.8-16V) can be configured to 10.5V. The
default is 10.8V.
Common characteristics of power supply modules with battery charger:
•
Automatic switchover to battery on power fail
•
Automatic switchover to main power on power return
•
Temperature compensated charging
•
Over-charging protection
•
Over-discharge protection
•
Battery test and diagnostics, including battery controlled discharge
•
Battery charging current control
Characteristics of the DC power supply low-tier:
•
Two auxiliary voltage outputs
•
Short circuit protection outputs
•
PS located on the leftmost slot of the frame
•
Overvoltage protection for CPU and I/Os
•
Reverse voltage protection
Figure 3-1 below depicts a general view of the power supply.
Power Supply Module and Backup Battery
3-2
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