SMC Networks SMC7824M/FSW manual Cable Testing for Existing Category 5 Cable

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CABLES

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire pairs are connected. However, it is recommended that for all critical connections, or any new cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The Category 5e specification includes test parameters that are only recommendations for Category 5. Therefore, the first step in preparing existing Category 5 cabling for running 1000BASE-T is a simple test of the cable installation to be sure that it complies with the IEEE 802.3ab standards.

Cable Testing for Existing Category 5 Cable

Installed Category 5 cabling must pass tests for Attenuation, Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT). This cable testing information is specified in the ANSI/TIA/EIA-TSB-67 standard.

Additionally, cables must also pass test parameters for Return Loss and Equal-Level Far-End Crosstalk (ELFEXT). These tests are specified in the ANSI/TIA/EIA-TSB-95 Bulletin, “The Additional Transmission Performance Guidelines for 100 Ohm 4-Pair Category 5 Cabling.”

Note that when testing your cable installation, be sure to include all patch cables between switches and end devices.

Adjusting Existing Category 5 Cabling to Run 1000BASE-T

If your existing Category 5 installation does not meet one of the test parameters for 1000BASE-T, there are basically three measures that can be applied to try and correct the problem:

1.Replace any Category 5 patch cables with high-performance Category 5e or Category 6 cables.

2.Reduce the number of connectors used in the link.

3.Reconnect some of the connectors in the link.

B-6

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Contents TigerAccess 10/100 Page TigerAccess 10/100 Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Industry Canada Class a CompliancesFCC Class a Japan Vcci Class aCE Mark Declaration of Conformance for EMI and Safety EEC ViiiSafety Compliance Australia AS/NZS 3548 1995 Class aWarnhinweis Faseroptikanschlüsse Optische Sicherheit Power Cord Safety Power Cord SetFrance et Pérou uniquement PSE Alarm XiiXiii Xiv Table of Contents Making Network Connections XviCables TroubleshootingSpecifications German InstructionsXviii Tables XixFigures Chapter About Tigeraccess Switch OverviewSwitch Architecture Front PanelDescription of Hardware Network Management Options100BASE-BX SC Fiber Ports 100BASE-TX and 1000BASE-T Ports 100BASE-TX Management PortConsole Port Alarm Interface Port SFP SlotsOptional SFP Transceivers Port and System Status LEDs Port and System LEDsPort and System Status LEDs LEDFan Tray Fan TrayPower Modules Optional Power ModulesOptional Media Extender Module 1000BASE Combo ModuleExpandability Features and BenefitsConnectivity PerformanceManagement Chapter Network Planning Fiber-To-The-Home FtthConnection Examples Downlink Fiber Connections Downlink Fiber ConnectionsUplink Connections Uplink Fiber ConnectionsManagement Connections Management Port ConnectionsPrivate Vlan Connections Private Vlan ConnectionsApplication Notes Network Planning Installing the Switch Selecting a SiteEthernet Cabling RJ-45 ConnectionsEquipment Checklist Package ContentsOptional Rack-Mounting Equipment Mounting Rack MountingInstalling the Switch in a Rack Desktop or Shelf MountingAttaching the Adhesive Feet Installing an Optional Module into the Switch Installing an Optional ModuleInstalling an Optional SFP Transceiver Inserting an SFP Transceiver into a SlotGrounding the Chassis Connecting to a Power Source Connecting DC PowerConnecting to a Power Source DC Plug Connections Connecting AC Power AC Power ReceptacleConnecting to the Console Port Wiring Map for Serial CableSerial Cable Wiring Connecting to the Alarm Port 10 Alarm Port D-15 Pin-OutWiring Map for Alarm Cable Alarm Cable Wiring11 External Alarm I/O Connections Installing the Switch Twisted-Pair Devices Connecting Network DevicesChapter Making Network Connections Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Making Twisted-Pair ConnectionsNetwork Wiring Connections Network Wiring ConnectionsFiber Optic Devices Making Connections to 100BASE-BX Ports and SFP Transceivers Connectivity Rules 1000BASE-T Cable RequirementsMaximum 1000BASE-SX Gigabit Ethernet Cable Length Mbps Gigabit Ethernet Cable LengthsMaximum 1000BASE-T Gigabit Ethernet Cable Length Maximum 1000BASE-LX Gigabit Ethernet Cable LengthMaximum Fast Ethernet Cable Length Mbps Fast Ethernet Cable LengthsMbps Ethernet Cable Lengths Maximum 100BASE-BX Fast Ethernet Cable LengthCable Labeling and Connection Records Making Network Connections Appendix a Troubleshooting Diagnosing Switch IndicatorsTable A-1 Diagnosing Switch Indicators Troubleshooting Power and Cooling Problems InstallationIn-Band Access 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 Table B-2 1000BASE-T MDI and MDI-X Port PinoutsCable Testing for Existing Category 5 Cable Adjusting Existing Category 5 Cabling to Run 1000BASE-TFiber Standards Cables Appendix C Specifications Physical CharacteristicsTemperature Switching DatabaseWeight Power SupplySwitch Features Management FeaturesEmissions StandardsCompliances ImmunityExtender Modules Extender Modules Appendix D German Instructions Eine Site Auswählen Selecting a SiteMontage Rack Mounting Instructions Rack-MontageDas Erden des Gehäuses Grounding the ChassisAnschluss an eine Stromquelle Anschluss an GleichstromAnschluss AN Eine Stromquelle Connecting to a Power Source Figure D-1 Gleichstromanschlüsse Wechselstromanschluss Figure D-2 Wechselstromanschluss Table E-1 TigerAccess 10/100 Products and Accessories Appendix E Ordering InformationOrdering Information Glossary Glossary-11000BASE-T Glossary-2 Glossary-3 Glossary-4 Glossary-5 Transmission Control Protocol/Internet Protocol TCP/IPVirtual LAN Vlan Glossary-6 Index Index-1Index-2 Index-3 SFPIndex-4 Page For Technical SUPPORT, Call

SMC7824M/FSW specifications

The SMC Networks SMC7824M/FSW is a robust and versatile managed switch designed for small to medium-sized enterprises that require reliable networking solutions for their growing needs. This switch is part of SMC's commitment to providing innovative networking products that deliver superior performance and flexibility.

One of the main features of the SMC7824M/FSW is its 24-port configuration, which provides ample connectivity for a variety of devices within a network. The switch supports both 10/100 Mbps Fast Ethernet and 10/100/1000 Mbps Gigabit Ethernet connections, allowing for seamless integration of multiple devices ranging from legacy systems to modern high-speed applications. This flexibility is crucial for businesses looking to extend the life of existing equipment while still adopting new technologies.

The SMC7824M/FSW is equipped with advanced Layer 2 management capabilities, including VLAN (Virtual Local Area Network) support, which enables network administrators to segment traffic for improved performance and security. Additionally, it supports Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP), which ensures loop-free network topology and enhances network stability.

Another significant feature is the switch’s Quality of Service (QoS) functionality, allowing for prioritization of critical data traffic. This is particularly beneficial for voice over IP (VoIP) and video conferencing applications, where latency and jitter must be minimized to ensure optimal performance. With QoS, businesses can maintain high levels of service, even as network demands increase.

The SMC7824M/FSW also includes features such as port mirroring for traffic analysis and troubleshooting, Link Aggregation for increased bandwidth and redundancy, and an easy-to-use web-based interface for straightforward configuration and management. This ease of use makes it an excellent choice for IT administrators who may not have extensive networking experience.

In addition to its extensive feature set, the SMC7824M/FSW is designed with energy efficiency in mind. It complies with IEEE 802.3az Energy Efficient Ethernet standards, allowing it to consume less power during periods of low traffic, thus reducing operational costs.

In summary, the SMC Networks SMC7824M/FSW switch is a powerful solution that combines flexibility, advanced management features, and energy efficiency, making it an ideal choice for businesses looking to enhance their networking capabilities while remaining cost-effective. Its comprehensive set of features ensures that it can meet the demands of modern network environments.
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