Power Supply Module and Backup Battery
3-2
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.
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