M160 Internet Router Hardware Guide
Chapter 12 Troubleshooting Hardware Components.. 207
OverviewofTroubleshootingResources.........................................207
Command-LineInterface.....................................................207
LEDs ...........................................................................208
LEDson theCraftInterface..............................................208
LEDson HardwareComponents........................................209
ChassisandInterfaceAlarm Messages......................................209
BlownFuseIndicators........................................................211
JuniperNetworksTechnicalAssistanceCenter............................. 212
TroubleshootingtheCoolingSystem....................................... ......212
TroubleshootingPacketForwardingEngineComponents......................213
TroubleshootingFPCs.........................................................214
TroubleshootingPICs................... .............................. ........215
TroubleshootingthePowerSystem............................................... 215
AllLEDson BothSuppliesAreOff...........................................215
All LEDs onOneSupplyAre OfforLEDStates Arenot Correct...........216
Part 4 Appendixes
Appendix A Safety and Regulatory Compliance Information.. 221
DefinitionofSafetyWarningLevels..............................................221
Safety GuidelinesandWarnings..................................................222
GeneralSafetyGuidelinesandWarnings....................................224
QualifiedPersonnel Warning.................................... ........225
RestrictedAccess AreaWarning ........................................225
PreventingElectrostaticDischargeDamage...........................226
ElectricalSafetyGuidelinesandWarnings..................................227
GeneralElectricalSafetyGuidelines....................................229
DCPowerElectricalSafetyGuidelines..................................229
Copper ConductorsWarning ...........................................230
DCPowerDisconnectionWarning......................................231
DCPowerGroundingRequirementsand Warning.....................232
DCPowerWiring SequenceWarning...................................233
DCPowerWiring TerminationsWarning...............................234
GroundedEquipmentWarning..........................................235
InCase ofElectricalAccident...........................................236
MidplaneEnergyHazardWarning.......................... ............236
MultiplePower SuppliesDisconnectionWarning......................236
PowerDisconnectionWarning..........................................237
TNPowerWarning.......................................................238
InstallationSafetyGuidelinesandWarnings................................239
ChassisLiftingGuidelines...............................................239
Installation InstructionsWarning ........................... ............239
Rack-MountingRequirementsandWarnings................ ..........240
RampWarning........................... .............................. ..244
LaserandLED SafetyGuidelinesandWarnings............................244
GeneralLaserSafetyGuidelines.........................................245
Class1 LaserProductWarning.................................... ......245
Class1 LEDProduct Warning........... .............................. ..245
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