Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual page 175

Chapter 5 Removal and Replacement Procedures
Note
Note
a. Install the PWR-2700-DC/4 power supply ground as described in this procedure.
b. If you intend to use an additional system (earth ground), ensure that the system ground connection
has been made. For ground connection installation instructions, see the
Connection" section on page
Remove the plastic bag attached to the front panel and put aside. This bag contains two plastic terminal
Step 2
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.
Figure 5-52
This illustration shows the terminal block barriers and terminal block guards attached.
Note
Tighten the power supply captive installation screws
Step 4
OL-4503-26
When using a PWR-2700-DC/4 power supply in a Cisco 7604 router, you must always connect
the PWR-2700-DC/4 power supply ground.
For redundant power supplies, you must connect the PWR-2700-DC/4 power supply ground for
both power supplies.
Handling the Power Supply
Power Supply 2
(redundant)
P W R -2
7 0 0 -D C
/4
P W R -2
7 0 0 -D C
/4
+V E- 1
INP UT
1
INP UT
+V E- 1 OK 2
OK
48V -60
-V E- 1 V 48V -60
=40 A V
=40 A
-V E- 1
+V E- 2
+V E- 2
-V E- 2
-V E- 2
AL L FA
ST EN ER
PR IOR S MU ST
TO OP BE FU
ER AT ING LLY EN
TH E PO GA GE
D
WE R SU
PP LY
Power Supply 1
3-19.
Figure 5-52. Slide the power supply into the power supply
+V E- 1
+V E- 1 INP UT
1 INP UT
OK 2 FA N
-V E- 1 OU TP UT
48V -60 OK
OK
V 48V -60
=40 A V FA IL
=40 A
-V E- 1
+V E- 2
+V E- 2
-V E- 2
-V E- 2
AL L FA
ST EN ER
PR IOR S MU ST
TO OP
BE FU
ER AT ING LLY EN
TH E PO GA GE
WE R SU D
PP LY
FA N
OU TP UT
OK
FA IL
(Figure
Cisco 7600 Series Router Installation Guide
Removing and Replacing the Power Supply
"System Ground
5-53).
5-47