Juniper Networks M160 Disconnecting and Connecting Power, Disconnecting Power from the Router

M160 Internet Router Hardware Guide

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 “Disconnecting Power from the Router” on page 200.

After a power supply is powered on, it can take up to 60 seconds for status indicators—such as LEDs on the power supply, show chassis commands, and messages on the craft interface LCD—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.

Figure 103: Installing a Power Supply

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Disconnecting and Connecting Power

The power cables from the external power sources connect to terminal studs on the circuit breaker box located at the lower right rear of the chassis. To disconnect or connect power to the router, perform the following procedures. Also follow these procedures when replacing the power cables, grounding cable, or both:

Disconnecting Power from the Router on page 200

Connecting Power to the Router on page 202

Disconnecting Power from the Router

To disconnect power from the router, follow this procedure (see Figure 104):

1.On the console or other management device connected to the master Routing Engine, enter CLI operational mode and issue the following command to shut down the router software. (If two Routing Engines are installed, also issue the command on the backup Routing Engine.)

user@host> request system halt

200 Replacing Power System Components