Juniper Networks manual M160 Internet Router Hardware Guide

M160 Internet Router Hardware Guide

2.For each power supply, verify that the source power cables are connected to the appropriate terminal on the circuit breaker box: 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 CIP (AUXILIARY, CONSOLE, or ETHERNET). For more information on connecting management devices, see Connecting the Router to Management and Alarm Devices on page 112.

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

5.Press one power switch on the circuit box to the ON ( ) position.

6.Observe the LEDs on the power supply faceplate:

As an enhanced power supply powers on, the green CB ON LED lights steadily, the blue OUTPUT OK LED blinks for a short time, then lights steadily, and the amber CB OFF LED does not light.

As an original power supply powers on, the green CB ON LED lights steadily, the blue OUTPUT OK LED blinks for a short time, then lights steadily, and the amber CB OFF and NO AIRFLOW LEDs do not light.

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 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.

7.Press the other power switch on the circuit breaker box to the ON ( ) position and observe the LEDs on the second 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 power supply and cable installation procedures described in “Reinstalling the Power Supplies” on page 109 and “Connecting Power to the Router” on page 117.

8.On the external management device connected to the Routing Engine, monitor the startup process to verify that the system has booted properly.

120 Providing Power to the Router