A SERVICE OF

logo

6-2
Cisco uBR-3x10 RF Switch Hardware Installation and Cabling Guide
OL-1984-06
Chapter 6 Troubleshooting
Troubleshooting the Installation and Setup
Figure 6-1 Troubleshooting Flowchart
Troubleshooting the Power Subsystem
Check the following to help isolate a problem with the power system.
Does the POWER LED come on when system power is turned on? If not:
AC—check to ensure that the AC power cord is plugged in to the power supply and the power
source (wall or power strip).
DC—verify that the –48 and +48-V leads are correctly attached to the power supply.
Verify that the system is properly grounded.
Ensure that the voltage selection switch is in the appropriate AC or DC position.
If you are unable to resolve the problem, see the “Obtaining Technical Assistance” section on
page 12 for information on contacting Cisco technical assistance.
Y
Y
N
NN
NN
Y
Y
Y
Y
N
N
N
Turn on
system
power
AC or DC
Power
supply
LED on
Troubleshoot
power
subsystem
Power
supply
LED on
Controller
and switch card
LEDs on
Set user
defined IP
address
Replace cards
with ERROR
LED on
ERROR
LEDs on switch
cards off
ERROR
LEDs on switch
cards off
Hook up
controller to
network
Server
verifies controller
operating
Troubleshoot
network
installation
Server
verifies controller
operating
Obtain
technical
assistance
End End
Troubleshoot
controller
switch card
subsystems
Controller
and switch card
LEDs on
62422