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Transition Networks SM24-100SFP-AH manual Appendix A Troubleshooting, Diagnosing Switch Indicators

Models: SM24-100SFP-AH

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Appendix A: Troubleshooting

Diagnosing Switch Indicators

	Table A-1. Troubleshooting Chart
Symptom	Action
Pwr LED is Off	• Power supply is disconnected.
	• Check connections between the switch, the power cord, and the wall
	outlet.
	• Contact your dealer for assistance.

Pwr LED is Amber	• Internal power supply has failed. Contact your local dealer for assistance.

OK LED is Amber	• Power cycle the switch to try and clear the condition.
	• If the condition does not clear, contact your dealer for assistance.

Port 1-28 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 Pwr and BPS LEDs work in combination to indicate power status as follows.

		Table A-2. Pwr/BPS LEDs
Pwr LED	BPS LED		Status

Green	Yellow		Internal power functioning normally; BPS plugged in
			but faulty, such as a thermal or fan failure.
Green	Off		Internal power functioning normally; BPS not
			plugged in.
Yellow	Green		Internal power faulty; BPS delivering power.

Off	Off		Both internal power and BPS unplugged or not
			functioning.

A-1

Image 41

Transition Networks SM24-100SFP-AH Appendix A Troubleshooting, Diagnosing Switch Indicators, Symptom, Action, Pwr LED

Contents

SM24-100SFP-AH Fast Ethernet Switch Installation GuidePage Layer 2 Workgroup Switch Fast Ethernet SwitchInstallation Guide SM24-100SFP-AH E082008-DT-R01 150200069500A FCC - Class A Compliances and Safety WarningsCE Mark Declaration of Conformance for EMI and Safety EEC according to EN 61000-4-111994 95% Reduction @10 ms, 30% Reduction @500 ms, 95% Reduction @5000 msWarning Fiber Optic Port Safety Safety ComplianceWarnhinweis Faseroptikanschlüsse - Optische Sicherheit France and Peru onlyPower Cord Set 18, ouAWG No. 16 pour un cable de longueur inferieure a` 2 metres France et Pérou uniquementLe cordon doit être en mesure d’acheminer un courant nominal d’au La prise femelle de branchement doit être du type à mise à la terreWarnings and Cautionary Messages End of Product Life Span Environmental StatementManufacturing Materials DocumentationAudience PurposeConventions Revision HistoryChapter 3 Installing the Switch ContentsChapter 1 Introduction Chapter 2 Network PlanningChapter 4 Making Network Connections Tables Figures Figure 1-1. SM24-100SFP-AH Front and Rear Panels Chapter 1 IntroductionOverview Description of Hardware Switch ArchitectureNetwork Management Options SFP SlotsFigure 1-2. SM24-100SFP-AH Port Status LEDs Port and System Status LEDsTable 1-1 SM24-100SFP-AH Port Status LEDs ConditionThe backup power supply is plugged in but faulty, such as a System self-diagnostic test successfully completedOK Diagnostic Figure 1-3. System Status LED Table 1-2 System Status LEDsPower Supply Sockets Features and BenefitsConnectivity Expandability“At-a-glance” LEDs for easy troubleshooting Network management agent ManagementManages switch in-band or out-of-band Supports Telnet, SNMP/RMON and Web-based interfaceChapter 2 Network Planning Introduction to SwitchingFigure 2-1. Collapsed Backbone Application ExamplesCollapsed Backbone Figure 2-2. Network Aggregation Plan Network Aggregation PlanFigure 2-3. Remote Connection with Fiber Cable Remote Connection with Fiber CableFigure 2-4. Making VLAN Connections Making VLAN ConnectionsApplication Notes Equipment Checklist Chapter 3 Installing the SwitchPackage Contents Selecting a SiteOptional Rack-Mounting Equipment MountingRack Mounting To rack-mount devicesFigure 3-3. Attaching the Adhesive Feet Desktop or Shelf MountingFigure 3-2. Installing the Switch in a Rack Figure 3-4. Inserting an SFP Transceiver into a Slot Installing an Optional SFP TransceiverConnecting to the Console Port Connecting to a Power SourceFigure 3-5. Power Sockets Figure 3-6. Serial Port RJ-45 Pin-OutNo other pins are used Wiring Map for Serial CableThe serial port’s configuration requirements are as follows Default Baud rate-9,600 bps Character Size-8 Characters Parity-NoneConnecting to PCs, Servers, Hubs and Switches Connecting Network DevicesChapter 4 Making Network Connections Twisted-Pair DevicesFigure 4-2. Network Wiring Connections Network Wiring ConnectionsFigure 4-3. Making Fiber Port Connections Fiber Optic SFP Devices1000BASE-T Cable Requirements Connectivity Rules1000 Mbps Gigabit Ethernet Collision Domain Connector10 Mbps Ethernet Collision Domain 100 Mbps Fast Ethernet Collision DomainConnector Table 4-4. Maximum 1000BASE-LH Gigabit Ethernet Cable LengthCable Labeling and Connection Records Diagnosing Switch Indicators Appendix A TroubleshootingDiagnosing Power Problems with the LEDs Table A-1. Troubleshooting ChartIn-Band Access Power and Cooling ProblemsInstallation Twisted-Pair Cable and Pin Assignments Appendix B Cables10BASE-T/100BASE-TX Pin Assignments Figure B-1. RJ-45 Connector Pin NumbersCrossover Wiring Straight-Through WiringMDI Signal Name Figure B-2. Straight-through WiringFigure B-3. Crossover Wiring 1000BASE-T Pin AssignmentsMDI Signal Name MDI-X Signal NameAdjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 CableAppendix C Supported SFP Transceivers C Supported SFP Transceivers Physical Characteristics Appendix D SpecificationsSwitching Database WeightManagement Features Switch FeaturesTemperature Power SupplyCompliances StandardsSafety EmissionsD Specifications Glossary Glossary-2 GlossarySeparate LAN or collision domain Virtual LAN VLAN Transmission Control Protocol/Internet Protocol TCP/IPNumerics IndexIndex-2 IndexPage SM24-100SFP-AH E082008-DT-R01 150200069500A