SMC Networks SMC8126L2 1000BASE-T Cable Requirements, Mbps Gigabit Ethernet Collision Domain

Page 43

Connectivity Rules 4

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 802.3-2005 standards.

1000 Mbps Gigabit Ethernet Collision Domain

Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length

Cable Type

 

 

Maximum Cable Length

Connector

Category 5, 5e, 6 100-ohm UTP or STP

 

100 m (328 ft)

RJ-45

 

 

 

 

 

 

 

 

Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Length

 

 

 

 

 

 

Fiber Size

Fiber Bandwidth

Maximum Cable Length

Connector

 

 

 

 

 

 

 

 

62.5/125 micron

160 MHz/km

 

 

2-220 m (7-722 ft)

 

LC

multimode fiber

 

 

 

 

 

 

 

200 MHz/km

 

 

2-275 m (7-902 ft)

 

LC

 

 

 

 

 

 

 

 

 

 

 

 

 

50/125 micron multimode

400 MHz/km

 

 

2-500 m (7-1641 ft)

 

LC

fiber

 

 

 

 

 

 

 

500 MHz/km

 

 

2-550 m (7-1805 ft)

 

LC

 

 

 

 

 

 

 

 

 

 

 

Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length

 

 

 

 

 

 

 

Fiber Size

 

Fiber Bandwidth

 

 

Maximum Cable Length

Connector

 

 

 

 

 

 

 

9/125 micron

 

N/A

 

 

2 m - 5 km (7 ft - 3.2 miles)

LC

single-mode fiber

 

 

 

 

 

 

 

 

Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length

 

 

 

 

 

 

 

Fiber Size

 

Fiber Bandwidth

 

 

Maximum Cable Length

Connector

 

 

 

 

 

 

 

 

9/125 micron

 

N/A

 

 

70 km - 100 km

 

LC

single-mode fiber

 

 

 

 

 

(43 - 62 miles)

 

 

Note: For link spans exceeding 70 km, you may need to use premium single mode fiber or dispersion shifted single mode fiber.

100 Mbps Fast Ethernet Collision Domain

Table 4-5 Maximum Fast Ethernet Cable Length

Type

Cable Type

Max. Cable Length

Connector

 

 

 

 

100BASE-TX

Category 5 or better 100-ohm UTP or STP

100 m (328 ft)

RJ-45

 

 

 

 

4-5

Image 43
Contents Installation Guide Page TigerSwitch 10/100/1000 Installation Guide Page Compliances and Safety Warnings N11846 Safety Compliance Power Cord Set France et Pérou uniquement Sein und die Aufschrift HAR oder Basec tragen Manufacturing Materials End of Product Life SpanDocumentation Viii Contents Appendix B Cables Appendix a TroubleshootingAppendix C Specifications Making Network ConnectionsAppendix D Ordering Information Glossary Index Xii Tables Figures Overview IntroductionNetwork Management Options Switch ArchitecturePort and System Status LEDs Description of Hardware10/100/1000BASE-T Ports SFP SlotsLED Expandability Features and BenefitsPower Supply Socket ConnectivityManagement 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 ConnectionsApplication Notes Selecting a Site Installing the SwitchEthernet Cabling Package Contents Equipment ChecklistOptional Rack-Mounting Equipment Rack Mounting MountingDesktop or Shelf Mounting Installing the Switch in a RackInserting an SFP Transceiver into a Slot Installing an Optional SFP TransceiverConnecting to the Console Port Connecting to a Power SourceSerial Cable Wiring Switch’s 8-Pin Null Modem PC’s 9-Pin Wiring Map for Serial CableInstalling the Switch Cabling Guidelines Connecting Network DevicesMaking Network Connections Twisted-Pair DevicesNetwork Wiring Connections Connecting to PCs, Servers, Hubs and SwitchesFiber Optic SFP Devices Network Wiring ConnectionsMaking Connections to SFP Transceivers Connectivity RulesMbps Gigabit Ethernet Collision Domain 1000BASE-T Cable RequirementsMbps Fast Ethernet Collision Domain Mbps Ethernet Collision Domain Cable Labeling and Connection RecordsInstallation Appendix a TroubleshootingDiagnosing Switch Indicators Power and Cooling ProblemsIn-Band Access Twisted-Pair Cable and Pin Assignments Appendix B Cables10BASE-T/100BASE-TX Pin Assignments Crossover Wiring Straight-Through WiringTwisted-Pair Cable and Pin Assignments B 1000BASE-T Pin AssignmentsAdjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 CableFiber Standards Physical Characteristics Appendix C SpecificationsManagement Features Switch FeaturesStandards CE Mark CompliancesSpecifications Appendix D Ordering Information Ordering Information Glossary Full Duplex End StationEthernet Fast EthernetSwitched Ports Media Access Control MACRedundant Power Supply RPS RJ-45 ConnectorVirtual LAN Vlan Transmission Control Protocol/Internet Protocol TCP/IPNumerics IndexIndex Page Technical Support

SMC8126L2 specifications

The SMC8126L2 is a robust Layer 2 managed switch developed by SMC Networks, designed to meet the demands of modern networking environments. This switch is part of the SMC's lineup of network solutions, emphasizing reliability, efficiency, and advanced functionalities suitable for both small and medium-sized enterprises.

One of the standout features of the SMC8126L2 is its support for 26 ports, which allow multiple devices to connect seamlessly. This includes 24 Fast Ethernet ports (10/100 Mbps) and 2 gigabit uplink ports. This configuration enables flexible network designs and enhances the bandwidth availability for devices that require faster data transmission.

The SMC8126L2 is equipped with various Layer 2 switching capabilities, including port-based Virtual LAN (VLAN) support, allowing businesses to segment their networks for better security and performance. This capability ensures that sensitive data remains isolated and reduces broadcast traffic across the entire network. The switch also supports 802.1Q tagging for VLAN configuration, facilitating the management of multiple VLANs simultaneously.

Quality of Service (QoS) is another significant aspect of the SMC8126L2. It employs intelligent traffic management features, prioritizing critical applications such as VoIP and video conferencing. This ensures that time-sensitive data packets are transmitted efficiently, minimizing latency and improving overall user experience. The switch supports multiple QoS mechanisms, such as 802.1p priority tagging and port-based scheduling, thus accommodating varied networking needs.

Security features are paramount in the SMC8126L2, with network access control through Port Security and MAC address filtering. This prevents unauthorized access and enhances the security posture of the network. Additionally, the switch supports IGMP Snooping, which conserves bandwidth by ensuring that multicast traffic is only sent to ports that require it.

Another remarkable aspect of the SMC8126L2 is its management capabilities. The switch can be managed through various methods, including web-based interfaces, command-line interfaces (CLI), and SNMP (Simple Network Management Protocol). This flexibility allows network administrators to monitor performance, configure settings, and troubleshoot issues effectively.

In summary, the SMC8126L2 brings a suite of advanced features and technologies that cater to the evolving requirements of networking. With its extensive port options, VLAN support, QoS capabilities, robust security measures, and versatile management interfaces, the SMC8126L2 stands out as a reliable choice for organizations looking to enhance their networking infrastructure. Its performance and reliability make it well-suited for addressing the challenges of modern network environments while ensuring efficient data flow and security.