Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 181

Chapter 5 Removal and Replacement Procedures
Verify power supply operation by checking that the power supply front panel LEDs are in the following
Step 6
states:
•
•
•
If the LEDs indicate a power problem, see the
Installing a PWR-2700-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
If you are installing a PWR-2700-DC power supply in a Cisco 7606 router, you must remove any
Note
preinstalled PEMs. You must also install a blank PEM filler plate for each power supply you are
installing. See
When you use 2700 W DC-input redundant power configurations and if there is a system load that is
Note
greater than 5/3 of lower power capacity on any one power supply, the system supervisor generates latch
signal to the power supply with lower power capacity. The lower power capacity on any power supply
may be because one of the DC-inputs of the power supply is disabled. Since the power supply gets into
latch mode in the system, the power supply should be removed out of chassis and put it back to turn it on.
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 Remove the plastic bag attached to the front panel and put aside. This bag contains two plastic terminal
block barriers, two cable ties, and two cable holder covers.
Verify that power is off to the DC circuit connected to the power supply you are installing.
Step 3
Grasp both power supply handles, as shown in
bay. Make sure that the power supply is fully seated in the bay.
OL-4503-26
INPUT OK LED is green
FAN OK LED is green
OUTPUT FAIL LED is not lit
Removing and Replacing the PEM, page
"System Ground Connection" section on page
Removing and Replacing the Power Supply
"Identifying Startup Problems" section on page
5-112.
3-19.
Figure 5-58. Slide the power supply into the power supply
Cisco 7600 Series Router Installation Guide
4-2.
5-53