CHAPTER 22
Troubleshooting the Cisco cBR
• Troubleshooting the Fan Module in the Cisco cBR, on page 255
• Troubleshooting the Power System in the Cisco cBR, on page 257
• Troubleshooting the Interface Cards in Cisco cBR Chassis, on page 257
• General Troubleshooting, on page 259
Troubleshooting the Fan Module in the Cisco cBR
SolutionPossible CauseProblem
The corresponding LED illuminates
10 seconds after the chassis is
started up.
Fan module starts up 10 seconds
after the chassis is powered on.
The STATUS LED of a fan is not
illuminated when the Cisco cBR-8
chassis is powered on. Less than 10
seconds have elapsed since the
chassis has been powered ON.
Check the status of the LED labeled
RPLC. If it is also illuminated then
replace the fan module.
There could be a failure of a Fan
Module component.
The STATUS LED of a fan is not
illuminated when the Cisco cBR-8
chassis is powered on. More than
10 seconds have elapsed since the
chassis has been powered ON.
Replace the Fan Module.There could be a failure of a Fan
Module hardware component. It
could also be a minor alarm.
The STATUS LED of a fan is
illuminated with Amber light and
the Fan Module shows no acoustic
indication of failure. Alternatively
all fans are acoustically elevated
with Amber illumination of one
LED on a fan.
Replace the Fan Module.There could be a failure of a Fan
Module hardware component. It
could also be a minor alarm.
The RPLC LED of a fan is
illuminated with Amber light and
the all the Fan Module are
acoustically elevated with Amber
illumination of one LED on a fan.
Cisco Converged Broadband Routers Hardware Installation Guide
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