Installation guide

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Network Processing Engine and Network Services Engine Installation and Configuration
OL-4448-08
Chapter 7 NPE-G1 and NPE-G2 Installation and Configuration Information
Removing the Network Processing Engine
Step 3 Disconnect the –V and +V leads. You can leave the ground cable connected.
Step 4 For a Cisco 7200 VXR router, remove the cable tie that secures the –V, +V, and ground leads to the power
supply faceplate. Save the cable tie.
Note The cable tie that accompanied your Cisco 7200 VXR router DC-input power supply can be
removed and replaced on the power supply without the use of a tool. If you secured the DC-input
power supply leads to the power supply faceplate using a different type of cable tie, use a wire
stripper to cut that cable tie from the power supply.
Figure 7-3 Disconnecting Power from a Cisco 7200 VXR Router DC-Input Power Supply
Step 5 Using a 3/16-inch flat-blade screwdriver, loosen the screw below the +V lead receptacle and pull the lead
from the connector. See Figure 7-3.
Step 6 Repeat this step for the –V lead and the ground lead.
Note The color coding of the DC-input power supply leads depends on the color coding of the DC
power source at your site. Typically, green or green and yellow are used for ground. Make certain
that the lead color coding you choose for the DC-input power supply matches the lead color
coding used at the DC power source.
Step 7 Repeat Step 1 through Step 6 if a second power supply is installed.
This completes the procedure for disconnecting DC-input power from a Cisco 7200 VXR router. Go to
the “Removing the NPE or NSE-1” section on page 7-16.
1 DC-input receptacle 3 Power switch
2 Internal fans 4 DC-input power supply
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