Network Router User Manual

Powering 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 Routing Engine (AUX/MODEM, CONSOLE, or MGMT). For

more information on connecting management devices, see “Connecting the Router

to Management Devices” on page 59.

4. Turn on the power to the external management device.

Press the power switch for the power supplies in slots P/S 0 and P/S 1 to the

ON ( | ) position. On both AC and DC power supplies, the switch is located on

the power supply faceplate.

Verify that the OUTPUT OK LED on each power supply faceplate eventually lights

steadily.

NOTE: 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 off 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 off the router again, first

issue the CLI request system halt command. For more information, see “Disconnecting

AC Power from the Router” on page 111 or “Disconnecting DC Power from the

Router” on page 117.

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.

Press the power switch for any additional power supplies to the ON ( | ) position

and verify that the OUTPUT OK LED on each 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

Providing Power to the Router ■ 65

Chapter 9: Connecting the Router