Cisco Systems Cisco 12008 manual Gnd

Connecting Source Power to the Power Supplies

Figure 3-20 Connecting Source DC Power Cables to a DC-Input Power Supply

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	Plant
	Controls
	B a t t e r y p l a n t
	THIS UNIT TO BE INSTALLED
	IN A RESTRICTED ACCESS AREA	CAUTION
	IN ACCORDANCE WITH THE NEC OR THE
	AUTHORITY HAVING JURISDICTION	THIS UNIT MAY HAVE MORE THAN ONE
		POWER SUPPLY CONNECTION. ALL
		CONNECTIONS NEED TO BE REMOVED
		TO DE-ENERGIZE THE UNIT.
		0
		INPUT
		0K
		OUTPUT
		FAIL

Central

office

primary

and

secondary

DC

power

distribution

CO

GND

Ground window

Central

office

ground

aCO

GND

48 VDC

Return

TER MIN ALS MA Y BE EN ER GIZ ED.

BER UHR EN DER ANS CHL USS E DEN HAU PTS CHA LTER

b

COM

NC

NO

c

H7707

Installing a Cisco 12008 3-49