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Maintaining the Cisco 12008 7-27
Adding, Removing, or Replacing a DC-Input Power Supply
Figure 7-8 Connecting Source DC Power Cables to the DC-Input Power Supply
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H7707
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0K
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B a t t e r y p l a n t
Ground
window
Central
office
primary
and
secondary
DC
power
distribution
Central
office
ground
CO
GND
CO
GND
Return
48 VDC