Troubleshooting The Installation - Cisco 10008 Installation And Configuration Manual

Installing or Replacing a PRE4
See the
Step 5
PRE.
Note
Do not operate the system unless all slots contain a PRE4, line card, or a blank faceplate. Blank
Warning
faceplates are necessary in empty slots to prevent exposure to hazardous voltages, to reduce
electromagnetic interference (EMI) that may disrupt other equipment, and to direct the flow of cooling
air through the chassis.
Power on the system if you have powered it off.
Step 6

Troubleshooting the Installation

Refer to
Table 6
Table 6
Symptom
PEMs, fans, and other line cards
do not operate
The FAIL LED does not light
during the power-on self-test
PRE4 does not operate properly
If these troubleshooting procedures do not correct the problem, refer to the
Troubleshooting Guide
Cisco 10008 Router PRE4 Installation and Configuration Guide
20
"Installing or Replacing a PRE4" section on page 11
If you are not installing a replacement PRE, install a blank faceplate in the slot.
Figure 2 and Table 2 for descriptions of the LEDs on the PRE4. Follow the instructions in
to troubleshoot the installation.
PRE4 Installation Troubleshooting
for additional information.
for instructions on how to install a new
Possible Cause
Disconnected power cord.
1.
2. Power switch is in the Off
position.
The PRE4 fuses are blown.
3.
The PRE4 is not properly
1.
seated.
Bad PRE4 slot or backplane
2.
connector.
Bad PRE4 slot or backplane
1.
connector.
Bad PRE4.
2.
Corrective Action
Check that all power cords
1.
are properly connected to
both the chassis and at the
power connection end.
Set the PEM power
2.
switches to the On
position.
3. Replace the PRE4.
Be sure the ejector levers
1.
are fully closed and that
the captive screws have
been tightened.
Remove the PRE4 and
2.
install it in another PRE4
slot.
Remove the PRE4 and
1.
install it in another PRE4
slot.
Replace the PRE4.
2.
Cisco 10000 Series Router
OL-13840-01