A-4
Cisco IAD2801 Series Integrated Access Devices Hardware Installation Guide
OL-12433-01
Appendix A Troubleshooting
Reading System LEDs
(a) The same data rate as configured for the router (9600 baud is the default)
(b) 8 data bits
(c) 1 stop bit
(d) No parity generated or checked
•
Router powers on and boots only when a particular module is removed.
–
Check the module. Refer to the
“Cisco 90-Day Limited Hardware Warranty Terms”
and the
“Obtaining Technical Assistance”
sections of the
online document for warranty and
customer service contact information.
–
Confirm that the Cisco IOS release installed in the router supports the card. The
lists the software requirements for each card.
•
Router powers on and boots only when a particular cable is disconnected.
–
There may be a problem with the module or cable. Refer to the
and the
“Obtaining Technical Assistance”
sections of the
online document. document for warranty and customer service contact information.
Reading System LEDs
The system LEDs on the front panel of the router provide information about the power, data packet
activity, and flash memory activity. For an explanation of these LEDs see
Table A-1
System LEDs on Cisco IAD2801 Series Integrated Access Devices
LED
Indicator
State
Meaning
Possible Causes and Corrective Actions
SYS PWR
Off
If the fan is not running—
•
No output from the internal
power supply.
Power not switched on at the router.
Power not available from source.
Faulty input power wires or connections.
Failed power supply in the router. To replace the internal
power supply, refer to the
section of the
“
Installing and Upgrading Internal Modules
”
online document.
If the fan is running—
•
Router fault
Failure in one or more system board components. Contact
Cisco technical support. Refer to the
section of the
online document.
Solid green
Router is receiving power, and
the internal power supply is
functional.
Normal indication. No action required.
Blinking green
During bootup, router is
booting up normally.
Normal indication. No action required.
After bootup, router is
operating in ROM monitor
mode.
Refer to the router rebooting and ROM monitor information
in the
Cisco IOS Configuration Fundamentals
for your Cisco IOS software release.
