Network Router User Manual

Press the power switches on the faceplates of two power supplies to the ON ( | )

position. When the power supply has powered on successfully, the green

OUTPUT OK LED 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 on the remaining power supplies to the ON ( | ) position

and observe the LEDs on the power supply faceplate. They should light as

described in the previous step.

If the LEDs are not lit in the appropriate pattern after 60 seconds, repeat the

procedures in “Installing an AC Power Supply” on page 109 and the previous steps

in this procedure.

7. On the external management device connected to the Routing Engine, monitor

the startup process to verify that the system has booted properly.

Replacing a DC Power Supply

A DC-powered router has two or more load-sharing DC power supplies. Each power

supply is hot-removable and hot-insertable, as described in “Field-Replaceable Units

(FRUs)” on page 3. For more information about DC power supplies, see “DC Power

Supply” on page 21.

To replace a DC power supply, perform the following procedures:

■ Removing a DC Power Supply on page 113

■ Installing a DC Power Supply on page 114

112 ■ Replacing Power System Components

M10i Internet Router Hardware Guide