Cisco Systems XR 12410 manual Powering Off the Router, Prerequisites and Preparation

Chapter 5 Maintaining the Router

Powering Off the Router

Prerequisites and Preparation

Before you perform any of the procedures in this chapter, be sure that you:

•Review the “Safety Guidelines” section on page 2-2.

•Read the safety and ESD-prevention guidelines described in the “Compliance and Safety Information” section on page 2-3.

•Ensure that you have all of the necessary tools and equipment before beginning the procedure.

•Have access to the following documents during the installation:

–Regulatory Compliance and Safety Information for Cisco 12000 Series Routers publication that shipped with the router.

Powering Off the Router

Most Cisco XR 12410 router field-replaceable units (FRUs) can be removed and replaced with the power on and the system operating. This is known as online insertion and removal (OIR). Power supplies, line cards, the RP, CSCs, SFCs, and alarm cards all support OIR. Unless otherwise noted, the maintenance tasks described in this chapter can be performed while the router remains powered on.

In some cases it may be necessary to power off the router, for example, to upgrade both power supplies and PDUs. Use the following procedure to power off the router.

Step 1 Set the power switch on each power supply to the off (0) position.

Step 2 Power off all circuit breakers for the source power lines connected to the power supplies.

Step 3 Verify that the Pwr OK indicator on each power supply is off.

Step 4 Verify that the OK indicator on the blower module is off.

	Cisco XR 12410 Router Installation Guide
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