Troubleshooting the Power System on the SRX650 Services Gateway

The LEDs on the services gateway enable you to determine the performance and operation of the power system. The POWER LED located on the front panel of the services gateway, as described in Table 27, indicates the different status settings with respect to the power system. The LEDs on the faceplate of each power supply also show power supply status as described in Table 28.

Table 27: POWER LED Description

LED Status

LED State

Meaning

Possible Cause and Corrective Action

Green

On

Services gateway is receiving power, and all AC and/or DC power supply units (PSUs) are working properly.

Normal indication. No action is required.

Red

On

Indicates failure of one or more PSUs.

If you cannot determine the cause of the problem or need additional assistance while troubleshooting a services gateway, open a support case using the Case Manager link at http://www.juniper.net/support/, or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (outside the United States).

Amber (Red+Green)

On

Power button has been pressed. The services gateway will shut down gracefully.

Once the services gateway is running again, continue troubleshooting.

 

Off

Indicates that the services gateway is not receiving power.

If a red alarm condition occurs, issue the show chassis alarms command to determine the source of the problem.

  • Verify that the AC power cord and/or DC power supply cable is not damaged. If the insulation is cracked or broken, immediately replace the cord or cable.
  • Verify that the source circuit breaker has the proper current rating. Each power supply must be connected to a separate source circuit breaker.
  • Ensure that the power socket you are plugged into is in working condition.
  • Connect the power supply to a different power source with a new power cord or power cables. If the power supply status LEDs indicate that the power supply is not functioning normally, the power supply is the source of the problem. Replace the power supply with a spare.

Note: If the system temperature exceeds the threshold, the Junos OS shuts down all power supplies so that no status is displayed.

The Junos OS also can shut down one of the power supplies for other reasons. In this case, the remaining power supplies provide power to the services gateway, and you can still view the system status through the CLI.

Table 28: Power Supply Faceplate LEDs

Power Supply Type

LED Label

Color

Meaning

Possible Cause and Corrective Action

AC

DC OK

Green

The DC output voltages produced by the power supply are within tolerance.

Normal indication. No action is required.

Red

One or more of the DC output voltages produced by the power supply are outside of tolerance.

Unlit

The power supply is not receiving input power.

AC OK

Green

The AC input power provided to the power supply is within tolerance.

Normal indication. No action is required.

Amber

The AC input power provided to the power supply is outside of tolerance.

Unlit

The power supply is not receiving input power.

DC

DC OK

Green

The DC output voltages produced by the power supply are within tolerance.

Normal indication. No action is required.

Red

One or more of the DC output voltages produced by the power supply are outside of tolerance.

Unlit

The power supply is not receiving input power.

INPUT OK

Green

The DC input power provided to the power supply is within tolerance.

Normal indication. No action is required.

Amber

The DC input power provided to the power supply is outside of tolerance.

Unlit

The power supply is not receiving input power.

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