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— Chapter 8. Powering the PES1900GI NR
PES1900NR Operations Manual
122
Figure 105 DC Entry Box, Front View, with cover removed
Figure 106 DC Entry Box Detailed View
Back-Up Power Supply
A typical Back-Up Power Supply (BUPS) consists of a charger/rectifier, and has 24-Volt storage
batteries floated across the DC output. The capacity of the BUPS should be sufficient to handle the
addition of a Second Channel or Growth Cabinet.