SMC Networks SMC8950EM, SMC8926EM manual Application Notes

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Application Notes 2

Application Notes

1.Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode.

2.For network applications that require routing between dissimilar network types, you can attach these switches directly to a multi-protocol router. However, if you have to interconnect distinct VLANs or IP subnets, you can take advantage of the wire-speed Layer 3 routing provided by these switches.

3.As a general rule, the length of fiber optic cable for a single switched link should not exceed:

•1000BASE-SX: 550 m (1805 ft) for multimode fiber

•1000BASE-LX: 5 km (3.1 miles) for single-mode fiber

•1000BASE-LH: 70 km (43.5 miles) for single-mode fiber

•10GBASE-SR: 300 m (984 ft) for multimode fiber

•10GBASE-LR: 10 km (6.2 miles) for single-mode fiber

•10GBASE-ER: 40 km (24.8 miles) for single-mode fiber

However, power budget constraints must also be considered when calculating the maximum cable length for your specific environment.

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Contents Installation Guide TigerStack II 10/100/1000 Installation Guide Page Warranty and Product Registration Compliances and Safety Warnings CE Mark Declaration of Conformance for EMI and Safety EEC Safety Compliance Power Cord SafetyPower Cord Set France et Pérou uniquement Environmental Statement Documentation About This Guide Contents Making Network Connections Glossary Index Tables Figures Figures Overview IntroductionNetwork Management Options Switch ArchitectureIntroduction Condition Status Link Port Status LEDsActivity On/Flashing Green SpeedPower Supply Sockets Optional Redundant Power SupplyOptional Media Extender Modules Features and BenefitsExtender Module LEDs ConnectivityExpandability PerformanceManagement Introduction Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesNetwork Aggregation Plan Network Aggregation PlanRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsUsing Layer 3 Routing Application Notes Network Planning Installing the Switch Selecting a SiteEthernet Cabling Equipment Checklist Package ContentsOptional Rack-Mounting Equipment Rack Mounting MountingDesktop or Shelf Mounting Installing the Switch in a RackInstalling an Optional Module Installing an Optional Module into the SwitchInserting an SFP Transceiver into a Slot Installing an Optional SFP TransceiverMaking Stacking Connections Connecting Switches in a StackStacking Topologies Connecting to a Power SourceConnecting to the Console Port Wiring Map for Serial CableSerial Cable Wiring Switch’s 8-Pin Null Modem PC’s 9-Pin Installing the Switch Making Network Connections Connecting Network DevicesTwisted-Pair Devices Cabling GuidelinesNetwork Wiring Connections Connecting to PCs, Servers, Hubs and SwitchesFiber Optic SFP Devices Network Wiring ConnectionsMaking Connections to SFP Transceivers Gbps Fiber Optic ConnectionsConnecting to an XFP Transceiver Connectivity Rules 1000BASE-T Cable RequirementsGbps Ethernet Collision Domain Mbps Gigabit Ethernet Collision Domain Mbps Fast Ethernet Collision DomainMbps Ethernet Collision Domain Cable Labeling and Connection Records Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems InstallationIn-Band Access Stack Troubleshooting Troubleshooting Appendix B Cables Twisted-Pair Cable and Pin Assignments10BASE-T/100BASE-TX Pin Assignments Crossover Wiring Straight-Through Wiring1000BASE-T Pin Assignments Figure B-3 Crossover WiringCable Testing for Existing Category 5 Cable Adjusting Existing Category 5 Cabling to Run 1000BASE-TFiber Standards Dispersion-Shifted Fiber Nm Loss-MinimizedNon-Zero Dispersion-Shifted Cables Physical Characteristics Appendix C SpecificationsTemperature WeightPower Supply Power ConsumptionSwitch Features Management FeaturesStandards Extender Modules Compliances10BASE-T GlossaryCSMA/CD Ieee TIA Numerics IndexIndex-2 Index-3 Index Index-4 Page 150200000054A R01

SMC8926EM, SMC8950EM specifications

SMC Networks has established itself as a prominent player in the networking and connectivity market, offering a range of professional solutions designed for small to medium-sized enterprises. Among its notable products are the SMC8950EM and the SMC8926EM, two advanced Ethernet switches that cater to the need for reliable and efficient networking.

The SMC8950EM is an enterprise-class managed switch that delivers high-performance capability with 48 10/100/1000Mbps Ethernet ports, providing extensive connectivity for various devices on a local area network. Its architecture is designed to handle high traffic loads, making it apt for environments where speed and reliability are paramount. This switch supports multiple protocols, including VLANs, which allow for flexible network segmentation and improved security. The SMC8950EM also features several Layer 2 and Layer 3 management protocols, enabling the switch to support advanced routing, Quality of Service (QoS), and network traffic management.

On the other hand, the SMC8926EM is a compact yet powerful switch equipped with 24 10/100/1000Mbps Ethernet ports, making it ideal for smaller installations or branch offices that require scalability without compromising on performance. With support for Power over Ethernet (PoE), the SMC8926EM simplifies the implementation of IP phones, security cameras, and wireless access points, making it particularly useful in environments where power outlets may be limited.

Both models employ advanced technologies, such as network storm control and link aggregation, to enhance performance and ensure seamless connectivity. They also provide comprehensive network monitoring capabilities, allowing administrators to manage traffic and troubleshoot issues proactively. The user-friendly web interface facilitates easier management and configuration, while SNMP support enables integration with existing network management systems for enhanced visibility and control.

Ultimately, the SMC8950EM and SMC8926EM represent robust networking solutions that address the challenges faced by modern enterprises. With their combination of high performance, advanced features, and scalability, these switches are well-suited for companies looking to build a reliable and efficient network infrastructure. Whether for a large organization or a small branch office, SMC Networks continues to deliver products that meet the evolving needs of users worldwide.
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