Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 179

Chapter 5 Removal and Replacement Procedures
Figure 5-55
Installing a PWR-1900-DC Power Supply in a Cisco 7606 Router
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Warning
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
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
bay. Make sure that the power supply is fully seated in the bay.
OL-4503-26
DC-Input Wires on Left Side
P W R - 2
7 0 0 - D C
/4
A LL FA
S TE N E
P R IO R R S M U
TO O P
E R A TI
N G TH
"System Ground Connection" section on page
IN P U T1
IN P U T2
O K
FA N
O K O U TP U
48 V- 60 T
V O K
48 V- 60
FA IL
V
=4 0A
=4 0A
S T B E
FU LL Y
E N G A
E P O W G E D
E R S U
P P LY
Figure 5-56. Slide the power supply into the power supply
Cisco 7600 Series Router Installation Guide
Removing and Replacing the Power Supply
3-19.
5-51