5-51
Cisco 7600 Series Router Installation Guide
OL-4503-26
Chapter 5 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Figure 5-55
DC-Input Wires on Left Side
Installing a PWR-1900-DC Power Supply in a Cisco 7606 Router
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Follow these steps to install a DC-input power supply:
Step 1
Ensure that the system (earth) ground connection has been made. For ground connection installation
instructions, see the
“System Ground Connection” section on page 3-19
.
Step 2
Verify that power is off to the DC circuit connected to the DC PEM for the power supply you are
installing.
Grasp both power supply handles, as shown in
Figure 5-56
. Slide the power supply into the power supply
bay. Make sure that the power supply is fully seated in the bay.
132220
INPUT1
OK
48V-60V
=40A
INPUT2
OK
48V-60V
=40A
FAN
OK
OUTPUT
FAIL
ALL F
ASTENERS MUST BE FULL
Y ENGA
GED
PRIOR T
O OPERA
TING THE
POWER SUPPL
Y
PWR-2700-DC/4