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Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide
OL-5916-01
Chapter 5 Troubleshooting the Installation
Troubleshooting Overview
Figure 5-2 Troubleshooting Strategy for Startup Problems
When you start up the system by turning the power supply switch to the ON (|) position, the following
should occur:
• You should immediately hear the fans operating.
If not, proceed to the “Troubleshooting the Cooling Subsystem” section on page 5-6. If you
determine that the power supply is functioning normally and that a fan is faulty, contact a customer
service representative. If a fan does not function properly at initial startup, there are no installation
adjustments that you should make.
• The LEDs on the router should come on as follows:
–
The power LED (PWR) comes on immediately and indicates that the router is receiving power.
This LED comes on during a successful router boot and remains on during normal operation of
the router.
If this LED remains off when you start the router, either there is a problem with the power
supply (it is damaged or not connected correctly), or the network processing card is not
connected properly. Proceed to the “Troubleshooting the Power Subsystem” section on
page 5-4.
Turn on
system power
Troubleshoot
power
subsystem
Troubleshoot
cooling
subsystem
System
startup
successful
Reseat port
adapter or ISM
and restart
Obtain
technical
assistance
PWR
LED on
?
Fans
operating
?
Fans
operating
?
SYS
RDY
LEDs
OK
Port
adapter and
ISM enabled
LEDs on
?
37633
Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Check port
adapter and ISM
LEDs
PWR
LED on
?
No
No
Port
adapter and
ISM enabled
LEDs on
?