Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 150

Removing and Replacing the Power Supply
Figure 5-24
1
DC power cable terminal block
2
Cable holder
3 Captive installation screw
4 Ground
5
Status LEDs
Remove the two screws securing each of the cable holder covers, and remove the cable holder covers off
Step 3
the cable holders
Disconnect the DC-input wires from the terminal block
Step 4
Positive (+)
•
Negative (-)
•
Ground
•
Remove the two tie-wraps from the ground cable. If there is a long cable tie securing the cable holders
Step 5
as shown in
When installing the unit, the ground connection must always be made first and disconnected last.
Warning
Loosen the captive installation screws on the power supply
Step 6
Caution Use both hands to install and remove power supplies. Each PWR-2700-DC DC-input power supply
weighs 14.1 pounds (6.4 kg).
Cisco 7600 Series Router Installation Guide
5-22
DC-Input Front Panel for 4500-W DC-Input Power Supply
RE MO VE
IN ST AL L
SW IT CH
MU ST
BE IN
TO IN ST
OF F "O
AL L/ RE
" PO SI
MO VE
FA ST EN
PO W ER
ER S MU
ST BE
PR IO R
FU LL Y
TO OP
ER AT IN
G PO W
ER SU
9
10
8
(Figure 5-22).
Figure 5-22, remove that as well.
Chapter 5
1
2
+V E -1
48 V- 60
V
+V E -1
40 A
48 V- 60
-V E -1
V
40 A
-V E -1
+V E -2
48 V- 60
V
+V E -2
40 A
48 V- 60
-V E -2
V
40 A
-V E -2
+V E -3
48 V- 60
V
+V E -3
40 A
48 V- 60
-V E -3
V
TI ON 40 A
SU PP LY -V E -3
.
EN GA
GE D
PP LY .
P W R -4
5 0 0 -D C
IN PU T1
7 6
6
Tie-wrap
7
DC power cable terminal block
8 Cable holder cover
9 Power Switch
10 DC power cable terminal block cover
(Figure 5-22) in this order:
(Figure
Removal and Replacement Procedures
3
IN PU T2
O K
FA N
O K O UT PU
T
O K
FA IL
5
4
5-22).
OL-4503-26