Optional Redundant Power Unit | SMC Networks SMC8748ML3, SMC8724ML3

			DESCRIPTION OF HARDWARE
		Table 1-2 System Status LEDs (Continued)

	LED	Condition	Status

	Stack	Green	Uplink and downlink operating normally.
	Link
	Link	Flashing Green	Uplink has failed.
		Flashing Green	Uplink has failed.

		Flashing Amber	Downlink has failed.

		Off	No stacking link present.

	Module	Green	An expansion module is installed in the slot.

		Flashing green	An installed expansion module has been
			disabled.

		Off	There is no module installed.

	Stack ID	1-8	Indicates the switch stack ID.
			The Master unit is numbered 1.
			Slave units are numbered 2-8.

		Off	In standalone mode.

Optional Redundant Power Unit

SMC supports an optional Redundant Power Unit (RPU), that can supply power to the switch in the event of failure of the internal power supply.

Power Supply Sockets

There are two power sockets on the rear panel of each switch. The standard power socket is for the AC power cord. The socket labeled “RPU” is for the optional Redundant Power Unit (RPU).

Power Socket

Redundant Power Socket

Figure 1-5 Power Supply Sockets

1-7

Image 27

SMC Networks SMC8748ML3, SMC8724ML3 manual Optional Redundant Power Unit, Power Supply Sockets

Contents

TigerStack Page TigerStack Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Japan Vcci Class a CompliancesFCC Class a Industry Canada Class a CE Mark Declaration of Conformance for EMI and Safety EEC Warnhinweis Faseroptikanschlüsse Optische Sicherheit Safety CompliancePower Cord Safety Australia AS/NZS 3548 1995 Class a Power Cord Set France et Pérou uniquement Vii Schuko Viii Environmental Statement Purpose AudienceRelated Publications Table of Contents Xii Making Network Connections Xiii Appendices Xiv Tables Figures Figures Xvi Overview Chapter About Tigerstack Front Panels Switch Architecture Description of Hardware Network Management Options10/100/1000BASE-T Ports Stacking Ports SFP Slots Port LEDs Port Status LEDs Port and System Status LEDs System Status LEDs Power Supply Sockets Optional Redundant Power Unit Module LEDs Optional Media Extender ModulesExtender Module LEDs 10G Xenpak Module Performance Features and BenefitsConnectivity Expandability Management Chapter Network Planning Introduction to Switching Collapsed Backbone Application Examples Network Aggregation Plan Network Aggregation Plan Remote Connections with Fiber Cable Remote Connections with Fiber Cable Making Vlan Connections Making Vlan Connections IP Routing for Unicast Traffic Using Layer 3 Routing Application Notes Network Planning Selecting a Site Installing the Switch RJ-45 Connections Ethernet Cabling Equipment Checklist Package ContentsOptional Rack-Mounting Equipment Rack Mounting Mounting Attaching the Brackets Rack-Montage Montage Rack Mounting German Attaching the Adhesive Feet Desktop or Shelf Mounting Installing an Optional Module Installing an Optional Module into the Switch Inserting an SFP Transceiver into a Slot Installing an Optional SFP Transceiver into the Switch Connecting Switches in a Stack Making Stacking Connections Stacking Topologies Power Socket Connecting to a Power Source Connecting to the Console Port Wiring Map for Serial CableWiring Map for Serial Cable Cabling Guidelines Connecting Network DevicesChapter Making Network Connections Twisted-Pair Devices Making Twisted-Pair Connections Connecting to PCs, Servers, Hubs and Switches Wiring Closet Connections Network Wiring Connections Fiber Optic SFP Devices Making Connections to SFP Transceivers Gbps Fiber Optic Connections Connecting to Xenpak Transceiver Maximum 10GBASE-SR 10 Gigabit Ethernet Cable Length Connectivity Rules1000BASE-T Cable Requirements Gbps Ethernet Collision Domain Mbps Gigabit Ethernet Collision Domain Maximum Fast Ethernet Cable Length Mbps Fast Ethernet Collision DomainMbps Ethernet Collision Domain Maximum 1000BASE-ZX Fiber Optic Cable Length Cable Labeling and Connection Records Appendix a Troubleshooting Diagnosing Switch IndicatorsTable A-1 Troubleshooting Chart Table A-2 Power/RPU LEDs Diagnosing Power Problems with the LEDs Power and Cooling Problems InstallationIn-Band Access Stack Troubleshooting Twisted-Pair Cable and Pin Assignments Appendix B Cables Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts 10BASE-T/100BASE-TX Pin Assignments Figure B-2 Straight-through Wiring Straight-Through Wiring Figure B-3 Crossover Wiring Crossover Wiring Cable Testing for Existing Category 5 Cable 1000BASE-T Pin AssignmentsTable B-2 1000BASE-T MDI and MDI-X Port Pinouts Fiber Standards Adjusting Existing Category 5 Cabling to Run 1000BASE-T Physical Characteristics Appendix C Specifications Power Supply Switching DatabaseWeight Temperature Management Features Switch Features CE Mark Emissions SafetyStandards Compliances Warranty Extender Modules10G Extender Module Xenpak Specifications Appendix D Ordering Information Table D-1 TigerStack 1000 Products and Accessories Ordering Information Glossary Glossary-11000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Index-1 Index Index-2 Index-3 Index-4 Page For Technical SUPPORT, Call