Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 168

Removing and Replacing the Power Supply
Cut any cable tie-wraps being careful not to cut the DC-input wires.
Step 4
The 6000 W DC-input power supply provides voltages of 2800 W, 4500 W, or 6000 W for single and
Note
redundant configurations. Some configurations require cable tie-wraps, depending on available DC input
pairs. For more information, refer to
Cisco 7609-S Router, page
Disconnect the DC-input wires from the terminal block in this order:
Step 5
Positive (+)
•
Negative (-)
•
Step 6 Disconnect the PWR-6000-DC power supply ground.
When installing the unit, the ground connection must always be made first and disconnected last.
Warning
Figure 5-44
Power leads
attached to
terminal block
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
Note If you are not going to remove the IPM, skip steps 7 and 8 and go to step 9.
Cisco 7600 Series Router Installation Guide
5-40
5-80.
DC-Input Wire Connections for 6000-W DC-Input Power Supply (2800W DC-input
shown)
Input power
module
Power
CI SC O SY
ST EM S, IN
C
switch
Captive
installation
screw
Chapter 5
Installing a PWR-6000-DC Power Supply in a Cisco 7609 or a
Terminal
block cover
1
2
3
IN PU T
4
OK
FA N
OU TP UT
OK
FA IL
( ) Ground
Removal and Replacement Procedures
OL-4503-26