Router Installation and Configuration Guide

9-7
Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
OL-16478-02
Chapter 9 Removal and Replacement Procedures
Removing and Replacing the Power Supply
Figure 9-4 Handling a DC-Input Power Supply
Installing a DC-Input Power Supply
This section covers the DC-input power supply installation procedure for the Cisco SCE8000 chassis.
Note The DC return is to remain isolated from the system frame and chassis (DC-I).
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Step 1 Power supply ground is required. Install the PWR-2700-DC/4 power supply ground as described in this
procedure.
Note The system ground connection with the PWR-2700-DC/4 power supply in a Cisco SCE8000 is provided
by the PWR-2700-DC/4 power supply ground. Additionally, you can connect a system (earth) ground.
Note You must always connect the PWR-2700-DC/4 power supply ground.
Note You must connect the PWR-2700-DC/4 power supply ground for both power supplies.
Note 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 Connecting the System Ground,
page 4-16.
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