Cisco 7606-S Installation Manual page 105

Chapter 5 Removal and Replacement Procedures
Note
Note
When installing the unit, the ground connection must always be made first and disconnected last.
Warning
To prevent a short circuit or shock hazard after wiring the DC-input power supply, reinstall the terminal
Caution
block covers.
Step 12 If you are installing a previously-wired IPM, insert the IPM firmly into the power supply and tighten the
IPM captive screws. See
Figure 5-99 Inserting Previously-Wired IPM (2700W DC-input shown)
Step 13 After confirming all installation steps are correctly completed, safety flags and lockout devices can be
removed, and the input circuits to the supplies can be energized.
Use the power switch to turn the power supply on.
Step 14
Step 15 Verify power supply operation by checking that the power supply front panel LEDs are in the following
states:
INPUT OK LED is green
•
FAN OK LED is green
•
• OUTPUT FAIL LED is not lit
If the LEDs indicate a power problem, see the
OL-4503-24
For proper 6000W DC-input redundant power configuration, all four pairs of input wires for
one 6000W DC-input power supply must come from the same battery system (A feed); all
four pairs of input wires for the other 4000W DC-input power supply must come from
another battery system (B feed).
For multiple DC input power supply, each DC input must be protected by dedicated circuit
breaker or fuse. The circuit breaker or fuse should be sized according to the power supply
input rating and local or national electrical code requirements.
Figure 5-99.
CIS CO SY
ST EM S, INC
1
2
INP UT
OK
3
4
FAN
OK OU TPU
T
FAI L
"Identifying Startup Problems" section on page
Cisco 7600 Series Router Installation Guide
Removing and Replacing the Power Supply
4-2.
5-105