Juniper Networks ERX Hardware 8 - Manual (Page 122)

ERX 8.0.x Hardware Guide
might fail if the module has not completed initialization. Use the show
version command to display line module status. Do not enter commands
for a line module until its state is listed as online.
Troubleshooting Power Failures
The system’s distributed power system is designed to consume low levels
of power and dissipate low levels of heat. See “System Specifications” on
page 119 for specifications of power consumption and heat dissipation. If
you suspect a power problem, see Table 10.
Table 10: Causes of Power Failures
Symptom Possible Problems Actions
System does not power up. System is not receiving power.
Module’s power supply has
malfunctioned.
Power source cannot handle
system load.
The following actions apply to all of the
possible problems:
1. Verify that all power connections
are correct.
2. Verify that the power supply is
delivering the correct voltage,
current, and wattage to the system.
See “System Specifications” on
page 119.
3. If the system still does not
operate, contact Juniper Networks
Customer Service.
System shuts down. Temperature is too high.
Power is lost.
The following actions apply to all of the
possible problems:
1. Verify that power connections are
properly attached.
2. Verify that system is receiving
power.
3. Look to see whether or not the
LEDs are lit.
4. Run diagnostics on SRP and line
modules.
5. If system does not not reset,
contact Juniper Networks
Customer Service.
Understanding Status LEDs to Troubleshoot
Module LEDs can show you the current status of a module and alert you
to a problem with the module or one of its ports. We recommend you
104 Understanding Status LEDs to Troubleshoot