Accton Technology VM2524, VM2548, VS2512A - page 66

Glossary

Glossary-4

Private Branch Exchange (PBX)

A telephone exchange local to a particular organisat ion who use, rather than

provide, telephone services.

POTS

Plain Old Telephone Service.

Redundant Power Unit (RPU)

A backup power supply that automatically takes over in case the primary power

supply should fail.

RJ-45 Connector

A connector for twisted-pair wiring.

Splitter

A filter to separate DSL signals from POTS signals to prevent mutual interference .

Switched Ports

Ports that are on separate collision domains or LAN segments.

Transmission Control Protocol/Internet Protocol (TCP/IP)

Protocol suite that includes TCP as the primary transport protocol, and IP as the

network layer protocol.

UTP

Unshielded twisted-pair cable.

VDSL

Very high data rate Digital Subscriber Line: A family of digital telecommunications

protocols designed to allow high speed data communication at data rates from 1 2.9

to 52.8 Mbps with corresponding maximum reach ranging from 4500 feet to 1000

feet of 24 gauge twisted pair cable over the existing copper telephone lines.

Virtual LAN (VLAN)

A Virtual LAN is a collection of network nodes that share the same collision domain

regardless of their physical location or connection point in the network. A VLAN

serves as a logical workgroup with no physical barriers, allowing users to share

information and resources as though located on the same LAN.

Contents

Main Page Page Page Accton Technology Corporation Limited Warranty i Compliances FCC - Class A Japan VCCI Class A Industry Canada - Class A ii CE Mark Declaration of Conformance for EMI and Safety (EEC) Taiwan BSMI Class A iii Safety Compliance iv Wichtige Sicherheitshinweise (Germany) Contents Page 1-1 Chapter 1: About the VDSL Switch-VS2512A Overview 1-2 VDSL Technology 100-240V~50-60Hz1A 4 3 Overview 1-3 Switch Architecture Management Options 1-4 Description of Hardware VDSL Switch-VS2512A 1-5 VDSL Splitter-VM2524 and VDSL Splitter-VM2548 1-6 Ethernet-over-VDSL CPE 1-7 Status LEDs Figure 1-5. Port and System LEDs 1-8 Optional Media Extender Modules 1-9 1-10 Page 1-12 Key Features Key Features 1-13 Page 2-1 Chapter 2: Network Planning Introduction to Switching Sample Applications Network Planning 2-2 Internet Connections 100-240V~50-60Hz1A VDSLSwitch-VS2512A Sample Applications 2-3 Making VLAN Connections 1000BASE-SXMultimodeModule 4 Application Notes 3-1 Chapter 3: Installing the VDSL Switch and Splitter Preparing the Site Installing Additional Phone Line Equipment Equipment Checklist Installing the VDSL Switch and Splitter Mounting Mounting 3-3 Installing the VDSL Switch and Splitter 3-4 2. Mount the device in the rack, using four rack-mounting screws (not prov ided). ExpansionModule VDSLSwitch-VS2512A Mounting 3-5 Installing an Optional Module into the Switch Page Powering On the Switch 3-7 Connecting to the Stacks Backplane Powering On the Switch Page 4-1 Chapter 4: Making Network Connections Twisted-Pair Devices Cabling Guidelines Connecting to the Punch-down Blocks Page Connecting to the Punch-down Blocks 4-3 2. Label the cables to simplify future troubleshooting. Ycables 1000BASE-SXMultimodeModule Making Network Connections 4-4 A-1 Appendix A: Troubleshooting Diagnosing Switch Indicators Power and Cooling Problems Troubleshooting A-2 Installation In-Band Access B-1 Appendix B: Cables Specifications . Twisted-Pair Cable and Pin Assignments Figure B-1. RJ-45 Connector Pin Numbers Cables B-2 10BASE-T/100BASE-TX Pin Assignments Twisted-Pair Cable and Pin Assignments B-3 1000BASE-T Pin Assignments 1000BASE-T Cable Requirements Cable Testing for Existing Category 5 Cable RJ-21 Port Pin Assignments 1 25 50 26 Console Port Pin Assignments B-5 Console Port Pin Assignments Console to 25-Pin DTE Port on PC Figure 2-1. DB-9 Console Port Pin Numbers DB-9 Port Pin Assignments Console Port to 9-Pin DTE Port on PC Page C-1 Appendix C: Specifications VDSL Switch Physical Characteristics C-2 Switch Features VDSL Switch C-3 Management Features Standards Compliances VDSL Splitter Slide-in Modules C-5 Slide-in Modules 1000BASE-SX Extender Module 1000BASE-LX Extender Module C-6 1000BASE-T Extender Module 100BASE-FX Extender Modules Slide-in Modules C-7 10/100BASE-TX Extender Mod ules 1000BASE-X GBIC Module Page Page Page D-1 Appendix D: Ordering Information Page Glossary Page Page Page Index Index-1 Numerics A B Index Index-2 N O P