Cisco Gigabit Switch Router 12008 Installation And Configuration Manual page 181

Figure 3-20
R
e
c
t
AC
i
f
i
e
r
s
Plant
Controls
B a t t e r y
Connecting Source DC Power Cables to a DC-Input Power Supply
B
a
t
t
e
r
i
e
s
p l a n t
CAUTION
0
INPUT
0K
OUTPU T
FAIL
TER
MIN
ALS
MA
Y
BE
COM
EN
ER
GIZ
NC
ED.
BER
NO
UHR
EN
DER
ANS
CHL
USS
E
DEN
HAU
PTS
CHA
LTER
Connecting Source Power to the Power Supplies
Central
office
primary
and
secondary
DC
power
distribution
Ground
window
Central
office
ground
CO
a
GND
b
c
Installing a Cisco 12008 3-49
48 VDC
Return
CO
GND