Foundry Networks 2402CF 1000BASE-T Cable Requirements, Adjusting Existing Category 5 Cabling

Page 50

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 6 cable should be used. The Category 5e and 6 specifications include 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

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 to correct the problem:

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

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

B-6

© 2003 Foundry Networks, Inc.

February 2003

Page 49 Page 51
Image 50
Page 49 Page 51
Contents Foundry EdgeIron 2402CF Installation Guide Page EC Conformance Declaration Class a CompliancesFCC Class a ‹RXQGU\1HWZRUNV,QF Australia AS/NZS 3548 1995 Class a Industry Canada Class aJapan Vcci Class a Underwriters Laboratories Compliance Statement Safety ComplianceWarnhinweis Faseroptikanschlüsse Optische Sicherheit Wichtige Sicherheitshinweise Germany ‹RXQGU\1HWZRUNV,QF Contents Chapter Installing the Switch Chapter Making Network ConnectionsGlossary Index ‹RXQGU\1HWZRUNV,QF Audience How to Get HelpAbout this Guide NomenclatureWarranty Coverage Related PublicationsAbout the Switch OverviewSwitch Architecture Management OptionsVLANs RJ-45 Ports Multicast SwitchingDescription of Hardware Traffic PriorityPort Status LEDs Port Status LEDsSystem Status LEDs Power Supply Receptacle Features and Benefits ConnectivityPerformance ManagementFoundry Networks, Inc February Introduction to Switching Network PlanningMbps Gigabit Ethernet Collision Domain Application ExampleConnectivity Rules Maximum Fiber Optic Cable Distance for 1000BASE-SXMaximum Cable Distance for 1000BASE-T Maximum Cable Distance for 10/100BASEApplication Notes Installing the Switch Selecting a SiteOptional Rack-Mounting Equipment Equipment ChecklistPackage Contents To rack-mount devices MountingRack Mounting Desktop or Shelf Mounting Attaching the BracketsConnecting to a Power Source Attaching the Adhesive FeetPower Receptacle Twisted-Pair Devices Connecting Network DevicesChapter Making Network Connections Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Wiring Closet Connections Making Twisted-Pair ConnectionsWiring Closet Connections Fiber Optic Devices Making SC Port Connections Appendix a Troubleshooting Diagnosing Switch IndicatorsIn-Band Access Power and Cooling ProblemsInstallation IN-BANDACCESS Foundry Networks, Inc February Specifications Appendix B CablesTwisted-Pair Cable and Pin Assignments 10BASE-T/100BASE-TX Pin AssignmentsPin MDI-X Signal MDI Signal Name Straight-Through Wiring Crossover WiringMDI Signal Name MDI-X Signal Name 1000BASE-T Pin Assignments1000BASE-T Cable Requirements Cable Testing for Existing Category 5 CableAdjusting Existing Category 5 Cabling Console Port to 9-Pin DTE Port on PC Console Port Pin AssignmentsDB-9 Port Pin Assignments Consoleto 25-Pin DTE Port on PC Base Unit Appendix C SpecificationsPhysical Characteristics Temperature Switching DatabaseWeight Power SupplyManagement Features StandardsCE Mark SafetyCompliances Emissions1000BASE-T Auto-NegotiationCollision Domain BandwidthCollision End StationGigabit Ethernet Fast Ethernet SwitchFull Duplex IeeeSwitched Ports Media Access Control MACRJ-45 Connector LAN SegmentUTP Glossary-6 Foundry Networks, Inc February Index Location requirements Management Index Problems A-2 Switch indicators A-1 Index-4 Foundry Networks, Inc February

2402CF specifications

Foundry Networks, a prominent player in the networking industry, introduced the 2402CF, a highly capable switch designed for enterprise networks and data centers. This device is part of the company’s advanced switching solutions, catering to the increasing demand for high-speed networking and reliable performance in complex environments.

The Foundry Networks 2402CF features a robust architecture that supports high throughput, making it suitable for demanding applications such as video streaming, large data transfers, and virtualization. One of the main highlights of this switch is its ability to deliver wire-speed Layer 2 and Layer 3 switching, enhancing overall network performance. This is particularly important for businesses that rely on seamless connectivity and minimal latency to maintain their operations.

Equipped with multiple Fast Ethernet (10/100) ports, the 2402CF offers flexibility and scalability, allowing organizations to easily integrate additional devices as their needs grow. The switch also supports Power over Ethernet (PoE), enabling it to power connected devices such as IP phones and wireless access points without the need for additional electrical outlets.

The device features advanced management capabilities, including an intuitive web-based interface and support for industry-standard protocols such as Simple Network Management Protocol (SNMP). These features allow network administrators to monitor performance, configure settings, and troubleshoot issues efficiently, reducing downtime and ensuring network reliability.

Security is another critical aspect of the Foundry Networks 2402CF. It includes features such as Access Control Lists (ACLs) and port security to help safeguard sensitive data and prevent unauthorized access. Additionally, the switch supports VLANs, enabling the segmentation of network traffic for improved performance and security.

In summary, the Foundry Networks 2402CF is a versatile and powerful switch that meets the needs of modern enterprises. With its high-speed capabilities, advanced management tools, and robust security features, the 2402CF is well-equipped to support the complex and evolving demands of contemporary network environments. Organizations looking for a reliable networking solution will find the Foundry Networks 2402CF to be a valuable addition to their infrastructure.
Top Page Image Contents