Cisco Systems NPE-175, NPE-225 manual Connecting DC-Input Power to a Cisco 7200 Series Router

Chapter 9 Removing and Installing the NPE or NSE

Removing and Replacing the NPE or NSE

Reconnecting DC-Input Power to a Cisco 7200 Series Router or Cisco 7200 VXR Router

To reconnect DC-input power to a Cisco 7200 series router or Cisco 7200 VXR router, complete the following steps:

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.

Warning Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position. Statement 322

Warning When installing the unit, the ground connection must always be made first and disconnected last. Statement 42

Step 1 At the rear of the router, check that the power switch on the power supply is in the off (O) position.

Step 2 Ensure that no current is running through the –V and +V leads. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the off position, and tape the switch handle of the circuit breaker in the off position.

Figure 9-20 Connecting DC-Input Power to a Cisco 7200 Series Router

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Power switch	3	Cable tie
Ground lead service loop	4	DC power leads

Step 3 If necessary, use a wire stripper to strip approximately 0.55 inch (14 mm) from the –V, +V, and ground leads. (See Step 3.)

Network Processing Engine and Network Services Engine Installation and Configuration

OL-4448-12 9-27