Troubleshooting the Power System on the SRX3400 Services Gateway
To verify that a power supply is functioning normally, perform
the following steps:
Check the LEDs on each power supply faceplate. If an AC
power supply is correctly installed and functioning normally, The PWR status LED on the SFB faceplate blinks, then lights steadily after approximately one minute. If
a DC power supply is correctly installed and functioning normally, the PWR, LED on the SFB faceplate
lights green steadily.
Issue the CLI show chassis environment pem command to check the status of installed power supplies. As shown
in the sample output, the value Online in the rows labeled State indicates that the power supplies in slots 0 and 1 are functioning normally:
user@host>show chassis environment pem
If a power supply is not
functioning normally, perform the following steps to diagnose and
correct the problem:
If a red alarm condition occurs, issue the show chassis
alarms command to determine the source of the problem.
If the system temperature exceeds the threshold, the JUNOS
Software shuts down all power supplies so that no status is displayed.
The JUNOS Software 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 or display.
Verify that the source circuit breaker has the proper
current rating. Each power supply must be connected to a separate
source circuit breaker.
Verify that the AC power cord or DC power cables from
the power source to the device are not damaged. If the
insulation is cracked or broken, immediately replace the cord or cable.
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: https://www.juniper.net/support/,
or call 1-888-314-JTAC (within the United States) or 1-408-745-9500.