SMC Networks SMC8848M manual Diagnosing Power Problems with the LEDs, Table A-2 Power/RPS LEDs

Page 64

TROUBLESHOOTING

Table A-1 Troubleshooting Chart (Continued)

Symptom

Action

 

 

Stack Link LED is

• The uplink/downlink has failed.

Flashing Green/Amber

• For the indicated stack link, check that the stacking

 

 

cables are properly connected. Replace the stacking

 

cable if necessary.

 

• Power cycle the switch to try and clear the condition.

 

 

Link LED is Off

• Verify that the switch and attached device are powered

 

on.

 

• Be sure the cable is plugged into both the switch and

 

corresponding device.

 

• Verify that the proper cable type is used and its length

 

does not exceed specified limits.

 

• Check the adapter on the attached device and cable

 

connections for possible defects. Replace the defective

 

adapter or cable if necessary.

 

 

Diagnosing Power Problems with the LEDs

The Power and RPS LEDs work in combination to indicate power status as follows.

 

 

Table A-2 Power/RPS LEDs

Power LED

RPS LED

Status

 

 

 

Green

Green

Internal power functioning normally; RPS is present.

 

 

 

Green

Amber

Internal power functioning normally; RPS plugged in but

 

 

faulty.

 

 

 

Green

Off

Internal power functioning normally; RPS not plugged in.

 

 

 

Amber

Green

Internal power faulty; RPS delivering power.

 

 

 

Off

Off

Both internal power and RPS unplugged or not functioning.

 

 

 

A-2

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Contents TigerStack II 10/100/1000 Page TigerStack II 10/100/1000 Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Compliances FCC Class aIndustry Canada Class a Japan Vcci Class aCE Mark Declaration of Conformance for EMI and Safety EEC Safety Compliance Power Cord SafetyAustralia AS/NZS 3548 1995 Class a Warnhinweis Faseroptikanschlüsse Optische SicherheitPower Cord Set Vii France et Pérou uniquementViii SchukoEnvironmental Statement Audience PurposeRelated Publications Table of Contents Making Network Connections XiiAppendices XiiiGlossary Index XivTables Figures XviChapter About OverviewSwitch Architecture Front PanelsNetwork Management Options Description of Hardware10/100/1000BASE-T Ports Gigabit Ethernet Module Slots SFP SlotsStacking Ports Port and System Status LEDs Port LEDs Port Status LEDsSystem LEDs System Status LEDsDescription of Hardware Optional Redundant Power Supply Power Supply SocketsOptional Media Extender Module 10GBASE XFP ModuleFeatures and Benefits ConnectivityExtender Module LEDs Module LEDsPerformance ExpandabilityManagement Introduction to Switching Chapter Network PlanningApplication Examples Collapsed BackboneNetwork Aggregation Plan Network Aggregation PlanRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsApplication Notes Installing the Switch Selecting a SiteEthernet Cabling RJ-45 ConnectionsPackage Contents Equipment ChecklistOptional Rack-Mounting Equipment Mounting Rack MountingAttaching the Brackets Desktop or Shelf Mounting Attaching the Adhesive FeetInstalling an Optional Module into the Switch Installing an Optional ModuleInserting an SFP Transceiver into a Slot Optional TranscieversConnecting Switches in a Stack Making Stacking Connections Stacking Topologies Connecting to a Power Source Power SocketWiring Map for Serial Cable Connecting to the Console PortWiring Map for Serial Cable Installing the Switch Connecting Network Devices Chapter Making Network ConnectionsTwisted-Pair Devices Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Making Twisted-Pair ConnectionsNetwork Wiring Connections Wiring Closet ConnectionsFiber Optic SFP Devices Gbps Fiber Optic Connections Making Connections to SFP TransceiversMaking Network Connections Connecting to an XFP Transceiver Connectivity Rules 1000BASE-T Cable RequirementsGbps Ethernet Collision Domain Maximum 10GBASE-SR 10 Gigabit Ethernet Cable LengthMbps Gigabit Ethernet Collision Domain Mbps Fast Ethernet Collision Domain Mbps Ethernet Collision DomainMaximum 1000BASE-ZX Fiber Optic Cable Length Maximum Fast Ethernet Cable LengthCable Labeling and Connection Records Making Network Connections Diagnosing Switch Indicators Appendix a TroubleshootingTable A-1 Troubleshooting Chart Diagnosing Power Problems with the LEDs Table A-2 Power/RPS LEDsInstallation Power and Cooling ProblemsIn-Band Access Stack Troubleshooting Appendix B Cables Twisted-Pair Cable and Pin Assignments10BASE-T/100BASE-TX Pin Assignments Table B-1 10/100BASE-TX MDI and MDI-X Port PinoutsStraight-Through Wiring Figure B-2 Straight-through WiringCrossover Wiring Figure B-3 Crossover Wiring1000BASE-T Pin Assignments Cable Testing for Existing Category 5 CableTable B-2 1000BASE-T MDI and MDI-X Port Pinouts Adjusting Existing Category 5 Cabling to Run 1000BASE-T Fiber StandardsAppendix C Specifications Physical CharacteristicsSwitching Database WeightTemperature Power SupplySwitch Features Management FeaturesSafety StandardsCompliances CE Mark EmissionsExtender Modules Warranty10G Extender Module XFP Specifications Appendix D German Instructions Eine Site Auswählen Selecting a Site GermanMontage Rack Mounting Instructions German Rack-MontageGerman Instructions Montage Rack Mounting Instructions German Appendix E Ordering Information Ordering Information Glossary-1 Glossary1000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Transmission Control Protocol/Internet Protocol TCP/IP Glossary-6Virtual LAN Vlan Index Index-1Index-2 Index-3 Index-4 Page For Technical SUPPORT, Call