Removing and Replacing the Power Supply
Voltage is present on the backplane when the system is operating. To reduce risk of an electric shock,
Warning
keep hands and fingers out of the power supply bays and backplane areas.
Follow these steps to remove a DC-input power supply:
Verify that power is off to the DC circuit connected to the DC-input power supply you are removing.
Step 1
Step 2
Turn the power switch to the Off (0) position on the power supply you are removing
Turning the power switch off also disengages a pawl that unlocks the power supply from the chassis.
Figure 5-38 DC-Input Front Panel for 4000-W DC-Input Power Supply
+
VE-1
-
VE-1
+
VE-2
-
VE-2
Figure 5-38
Note
supply does not have an outer terminal block cover. To order a retrofit kit use part number
CVR-4000DC-TERM=.
1
Inner terminal block cover
2
Plastic insulator
3
DC power cable terminal block 2 (TB2)
4
Ground
5
Status LEDs
6
Captive installation screw
Remove the two A4 screws securing the outer terminal block cover, and remove the cover from the power
Step 3
supply
Cut any cable tie-wraps being careful not to cut the DC-input wires.
Step 4
Cisco 7600 Series Router Installation Guide
5-34
11
10
9
+
VE-3
-
VE-3
8
shows PWR-4000-DC with an outer terminal block cover; an earlier version of this power
(Figure
5-38).
Chapter 5
3
2
1
I
0
INPU T OK
FAN
OUTP UT
1
2
3
OK
FAIL
7
6
5
7
Power switch
8
Outer terminal block cover
9
Inner terminal block cover
10 Plastic insulator
11 DC power cable terminal block 1 (TB1)
Removal and Replacement Procedures
(Figure
5-38).
4
OL-4503-24