Cisco SNS-3415 series Посібник з усунення несправностей - Сторінка 3
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Troubleshooting
Problem Solving
Cables—Verify that the external cables connecting the appliance to the network are all secure.
Troubleshooting the Power and Cooling Systems in the CSACS-1121 Series
Appliance
Both the power LED and the fans can help you troubleshoot a power problem. Check the following items to help isolate
the problem:
When the CSACS-1121 Series appliance is connected to the power source, is the appliance power LED on the front
panel on? If not, check the AC power cord connection; if the power LED is still off, the problem might be due to a
power supply failure.
Does the appliance shut down after being on for only a short time?
—
Check for an environmentally induced shutdown. For more information, see
page 3
section.
—
Check the fans. If the fans are not working, the appliance will overheat and shut itself down.
If the fans are not working, you might need to check the power supply connection to the fans.
Checking this connection will require you to shut down the appliance, remove any external cables, and open up the
appliance.
—
Ensure that the appliance intake and exhaust vents are clear.
—
Check the environmental site requirements in
Does the appliance partially boot, but the LEDs do not light? Check for a power supply failure by inspecting the power
LED on the front panel of the appliance:
—
If the LED is on, the power supply is functional.
—
If the LED is off, see the Cisco Information Packet for warranty information, or contact your customer
service representative.
Environmental Reporting Features
The CSACS-1121 Series appliance has protection circuits that monitor and detect overcurrent, overvoltage, and
overtemperature conditions inside the appliance.
If the power supply shuts down or latches off, an AC cycle switches off for 15 seconds and switches on for 1 second to
reset the power supply. For more information, see
The following conditions can cause an abnormally high appliance temperature:
Fan failure
Air conditioner failure in the room
Airflow blocked to cooling vents
Take steps to correct the problem. For information about environmental operating conditions, see
Humidity Guidelines, page
Regulatory Compliance, page
8.
Temperature and Humidity Guidelines, page
3
Environmental Reporting Features,
8.
7.
Temperature and