Enterasys Networks V2H124-24P manual Glossary, 10BASE-T

Page 61

Glossary

10BASE-T

IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3, 4, or 5 UTP cable.

100BASE-TX

IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 UTP cable.

1000BASE-LH

Long haul Gigabit Ethernet over two strands of 9/125 micron core fiber cable.

1000BASE-T

IEEE 802.3ab specification for Gigabit Ethernet over 100-ohm Category 5, 5e or 6 twisted-pair cable (using all four wire pairs).

Auto-Negotiation

Signalling method allowing each node to select its optimum operational mode (e.g., speed and duplex mode) based on the capabilities of the node to which it is connected.

Bandwidth

The difference between the highest and lowest frequencies available for network signals. Also synonymous with wire speed, the actual speed of the data transmission along the cable.

Collision

A condition in which packets transmitted over the cable interfere with each other. Their interference makes both signals unintelligible.

Collision Domain

Single CSMA/CD LAN segment.

CSMA/CD

CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the communication method employed by Ethernet, Fast Ethernet, and Gigabit Ethernet.

End Station

A workstation, server, or other device that does not forward traffic.

Glossary-1

Image 61

Contents Matrix V-Series V2H124-24P Fast Ethernet Switch Page Page Regulatory Compliance Information Environmental Requirements Safety Compliance Power Cord Set France et Pérou uniquement Vii Declaration of Conformity Enterasys Networks, Inc Firmware License Aggreement Page Page Xii Contents Appendix C Specifications C-1 Glossary Index Tables Figures Figures Introduction Switch ArchitectureOverview Network Management Options Power-over-Ethernet Capability10/100BASE-T Ports Description of Hardware1000BASE-T/SFP Ports Port and System Status LEDsSystem Status LEDs System Status LEDs Stack Master Button Mode PoE/Link ButtonOptional Stacking Transceiver Power Supply ReceptacleConnectivity Features and BenefitsPerformance ManagementNetwork 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 ChecklistGetting Help Optional Rack-Mounting Equipment MountingRack Mounting Desktop or Shelf Mounting Installing the Switch in a RackInstalling an SFP Transceiver Installing an SFP TransceiverInstalling a Stacking Transceiver Stacking SwitchesConnecting Switches in a Stack Connecting Switches in a StackConnecting to the Console Port Connecting to a Power SourceDTE Port Wiring Map for Serial CableInstalling the Switch Power-over-Ethernet Connections Connecting Network DevicesMaking Network Connections Twisted-Pair DevicesCabling Guidelines Connecting to PCs, Servers, Hubs and SwitchesNetwork Wiring Connections Network Wiring ConnectionsMaking Fiber Port Connections Fiber Optic Devices1000BASE-T Cable Requirements Connectivity RulesMbps Gigabit Ethernet Collision Domain Mbps Fast Ethernet Collision Domain Cable Labeling and Connection RecordsMbps Ethernet Collision Domain Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems In-Band Access InstallationStack Troubleshooting Twisted-Pair Cable and Pin Assignments Appendix B Cables10/100BASE-TX Pin Assignments Crossover Wiring Straight-Through WiringTwisted-Pair Cable and Pin Assignments B 1000BASE-T Pin AssignmentsFiber Standards Cable Testing for Existing Category 5 CablePhysical Characteristics Appendix C SpecificationsManagement Features Switch FeaturesCompliances StandardsSpecifications 10BASE-T GlossaryIeee LED Virtual LAN Vlan Numerics IndexIndex-2 Page ES3526-PoE-60 P/N 150200039300A E042004-R01