Maintaining SRX5800 Services Gateway Power Supplies

Purpose

For optimum services gateway performance, verify the condition of the power supplies.

Action

On a regular basis:

• To check the status of the power supplies, issue the show chassis environment pem command. The output is similar to the following:
  user@host> show chassis environment pem

  PEM 0 status:
    State                      Online
    Temperature                OK
    AC Input:                  OK
    DC Output             Voltage   Current       Power    Load
                            50        6             300      17
  PEM 1 status:
    State                      Online
    Temperature                OK
    AC Input:                  OK
    DC Output             Voltage   Current       Power    Load
                            50        3             150      8

• Make sure that the power and grounding cables are arranged so that they do not obstruct access to other services gateway components.
• Routinely check the status LEDs on the power supply faceplates and the craft interface to determine if the power supplies are functioning normally.
• Check the red and yellow alarm LEDs on the craft interface. Power supply failure or removal triggers an alarm that causes one or both of the LEDs to light. You can display the associated error messages by issuing the following command:
  user@host> show chassis alarms
• Periodically inspect the site to ensure that the grounding and power cables connected to the device are securely in place and that there is no moisture accumulating near the device.