Power On the Router

To power on 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 on an AC-powered router, 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.

   For each power supply on a DC-powered router, verify that the source DC power cables are connected to the appropriate terminal on the power supply faceplate: the positive (+) source cable to the return terminal (labeled RTN) and the negative (–) source cable to the input terminal (labeled –48V).

3. Verify that an external management device is connected to one of the Routing Engine ports on the craft interface (AUX/MODEM, CONSOLE, or MGMT). For more information on connecting management devices, see Connect the Router to Management Devices.
4. Turn on the power to the external management device.
5. Press the power switch for one power supply to the ON ( | ) position. On both AC and DC power supplies, the switch is located on the power supply faceplate.
6. Verify that the OUTPUT OK LED on the power supply faceplate eventually lights steadily.

   After powering off a power supply, wait at least 60 seconds before turning it back on. After powering on a power supply, wait at least 60 seconds before turning it off. If the router is completely powered down when you power on the power supply, the Routing Engine boots as the power supply completes its startup sequence. If the Routing Engine finishes booting and you need to power down the router again, first issue the CLI request system halt command. For more information, see Disconnect AC Power from the Router or Disconnect DC Power from the Router. After a power supply is powered on, it can take up to 60 seconds for status indicators—such as LEDs on the power supply and show chassis commands—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.

7. Press the power switch for the second power supply to the ON ( | ) position and verify that the OUTPUT OK LED on the power supply faceplate lights steadily. If the LED does not light after 60 seconds, verify that the power supply is properly inserted into the chassis and repeat the cable installation procedures described in Connect Power to an AC-Powered Router or Connect Power to a DC-Powered Router.
8. On the external management device connected to the Routing Engine, monitor the startup process to verify that the system has booted properly.

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