Chapter 13: Replacing Hardware Components

Disconnecting AC Power from the Router

To disconnect AC power from the router, follow this procedure:

1.On the console or other management device connected to the Routing Engine, enter CLI operational mode and issue the following command to shut down the router software cleanly and preserve Routing Engine state information.

user@host> request system halt

NOTE: Wait until a message appears on the console confirming that the operating system has halted.

For more information about the command, see the JUNOS System Basics and Services Command Reference.

NOTE: The router might continue forwarding traffic for a few minutes after the request system halt command has been issued.

2.Press the power switch on each power supply faceplate to the OFF (O) position.

3.Unplug the power cord from each power supply.

NOTE: When multiple AC power supplies are installed in the chassis, each power cord (one for each power supply) must be unplugged to disconnect power completely.

Connecting AC Power to the Router

To connect AC power to the router, follow this procedure:

1.Verify that the power supplies are fully inserted in the chassis and the thumbscrews on their faceplates are tightened.

2.For each power supply, verify that the ends of the power cord are firmly plugged into the appliance inlet on the power supply faceplate and the external power source receptacle.

3.Connect a management device to one of the ports on the Routing Engine (AUX/MODEM, CONSOLE, or MGMT). For more information on connecting management devices, see “Replacing Connectors to Routing Engine Interface Ports” on page 130.

4.Turn on the management device.

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Juniper Networks M10i manual Disconnecting AC Power from the Router, Connecting AC Power to the Router