Cisco WS-X4448-GB-RJ45 Hardware Maintenance Manual - Page 83

Environmental Reporting Features, Reading Front-Panel LED Indicators, System LED Operation

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Environmental Reporting Features • System boots, but console screen is frozen. - Check the external console connection. - Verify the console baud rate in the documentation for the terminal. • System powers on and boots with a particular network processor module disconnected from the motherboard. - Suspect the network processor module. • System powers on and boots with a particular network processor module or cable disconnected. - Suspect the network processor module or cable. Environmental Reporting Features If the router is operating at an abnormally high temperature, the following message will be transmitted to the console screen: %SYS-1-OVERTEMP: System detected OVERTEMPERATURE condition. Please resolve cooling problem immediately! Typical causes of abnormally high system temperature follow: • Fan failure • Air conditioner failure in the room • Air blockage to cooling vents Reading Front-Panel LED Indicators The router's front panel has LED indicators for determining system performance and operation at a glance. The following sections contain information on reading the LED indicators. System LED Operation Figure 4-1 shows the network activity and health indicators and the run and power lights on the router front panel. Figure 4-1 Cisco 4000 Series-Front Panel Indicators Network activity LEDs Run LED 1 DATA OK 2 DATA OK Health LEDs 3 DATA OK SERIES OK POWER Power LED Troubleshooting the Initial Hardware Configuration 4-3 H2427

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Troubleshooting the Initial Hardware Configuration
4-3
Environmental Reporting Features
•
System boots, but console screen is frozen.
—
Check the external console connection.
—
Verify the console baud rate in the documentation for the terminal.
•
System powers on and boots with a particular network processor module disconnected from the
motherboard.
—
Suspect the network processor module.
•
System powers on and boots with a particular network processor module or cable disconnected.
—
Suspect the network processor module or cable.
Environmental Reporting Features
If the router is operating at an abnormally high temperature, the following message will be
transmitted to the console screen:
%SYS-1-OVERTEMP: System detected OVERTEMPERATURE condition. Please resolve cooling
problem immediately!
Typical causes of abnormally high system temperature follow:
•
Fan failure
•
Air conditioner failure in the room
•
Air blockage to cooling vents
Reading Front-Panel LED Indicators
The router’s front panel has LED indicators for determining system performance and operation at a
glance. The following sections contain information on reading the LED indicators.
System LED Operation
Figure 4-1 shows the network activity and health indicators and the run and power lights on the
router front panel.
Figure 4-1
Cisco 4000 Series—Front Panel Indicators
Network activity LEDs
Run LED
H2427
2
DATA
OK
3
DATA
OK
1
DATA
OK
Health LEDs
Power LED
POWER
OK
SERIES