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Insert the PC Card......................................................................... 114
Replace the Routing Engine .................................................................... 115
Remove the Routing Engine .............................................................. 115
Install the Routing Engine................................................................. 116
Replace Connectors toRouting Engine Interface Ports ....................................... 118
Replace the Management Ethernet Cable ................................................ 118
Replace the Consoleor AuxiliaryCable................................................... 119
Chapter 11
Troubleshoot Hardware Components .................................................................121
Overview of Trou
bleshooting Resources............................................................121
Command-Line Interface.......................................................................121
LEDs.............................................................................................122
LEDs on the Craft Interface ...............................................................122
LEDs on Hardware C
omponents..........................................................122
Hardware and Interface Alarm Messages......................................................122
Juniper Networks T
echnical Assistance Center................................................124
Troubleshoot the Fan Tray ...........................................................................124
Troubleshoot Pack
et Forwarding Engine Components .............................................124
Troubleshoot the FEB...........................................................................125
Troubleshoot PICs...............................................................................1
25
Troubleshoot the Power System.....................................................................125
LED on Both Supplies I
s Off....................................................................126
LED onOneSupply IsOff ......................................................................126
Part 4
Appendixes
Appendix A
Safety and Regulatory Compliance Information...............................................129
Definition of Safet
y Warning Levels.................................................................129
Safety Guidelines and Warnings.....................................................................131
General Safety Guid
elines and Warnings ......................................................131
Qualified Personnel Warning..............................................................132
Restricted Access Ar
ea Warning ..........................................................133
Prevent Electrostatic Discharge Damage.................................................134
Electrical Safety Gu
idelines and Warnings.....................................................135
General Electrical Safety Guidelines ......................................................136
AC Power Electrical Sa
fety Guidelines ....................................................136
DC Power ElectricalSafety Guidelines....................................................137
Copper Conductors War
ning .............................................................138
DC Power Disconnection Warning........................................................138
DC Power Grounding Requ
irements and Warning .......................................139
DC Power Wiring SequenceWarning.....................................................140
DC Power Wiring Terminat
ions Warning.................................................141
Grounded Equipment Warning ...........................................................142
In Case of Electrical Acc
ident .............................................................143
Midplane EnergyHazard Warning ........................................................143
Multiple Power Supplies D
isconnection Warning ........................................144
Tab le of Con ten ts
vii