Reconnecting Dc-Input Power To A Cisco 7200 Series Router Or Cisco 7200 Vxr Router - Cisco NPE-175 Installation And Configuration Manual

Chapter 9 Removing and Installing 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:
The color coding of the DC-input power supply leads depends on the color coding of the DC power
Note
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
When installing the unit, the ground connection must always be made first and disconnected last.
Warning
Statement 42
At the rear of the router, check that the power switch on the power supply is in the off (O) position.
Step 1
Ensure that no current is running through the –V and +V leads. To ensure that all power is off, locate the
Step 2
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
1
2
If necessary, use a wire stripper to strip approximately 0.55 inch (14 mm) from the –V, +V, and ground
Step 3
leads. (See
OL-4448-12
Connecting DC-Input Power to a Cisco 7200 Series Router
1
2 3
Power switch
Ground lead service loop
Step 3.)
Network Processing Engine and Network Services Engine Installation and Configuration
4
3 Cable tie
4 DC power leads
Removing and Replacing the NPE or NSE
9-27