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Planex SF-2420GX User Manual

24port gigabit l2 intelligent switch
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24PORT GIGABIT L2 INTELLIGENT SWITCH
SF-2420GX

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  • Page 1 24PORT GIGABIT L2 INTELLIGENT SWITCH SF-2420GX...
  • Page 3 Installation Guide 24PORT GIGABIT L2 INTELLIGENT SWITCH Layer 2 Switch with 20 10/100/1000BASE-T (RJ-45) Ports, 4 Gigabit Combination Ports (RJ-45/SFP), and 2 10-Gigabit Extender Module Slots Installation Guide Version 1.0 SF-2420GX...
  • Page 4 September, 2006...

  • Page 5: Japan Vcci Class A

    Compliances and Safety Warnings FCC - Class A This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 6 CE Mark Declaration of Conformance for EMI and Safety (EEC) This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC.

  • Page 7: Safety Compliance

    Safety Compliance Warning: Fiber Optic Port Safety When using a fiber optic port, never look at the transmit laser while it is powered on. Also, never look directly at the fiber TX port and fiber cable CLASS I LASER DEVICE ends when they are powered on.
  • Page 8 Important! Before making connections, make sure you have the correct cord set. Check it (read the label on the cable) against the following: Power Cord Set U.S.A. and Canada The cord set must be UL-approved and CSA certified. The minimum specifications for the flexible cord are: - No.
  • Page 9 France et Pérou uniquement: Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations sont du type impédance à la terre, ce groupe doit être alimenté par une tension de 230 V (2 P+T) par le biais d’un transformateur d’isolement à rapport 1:1, avec un point secondaire de connexion portant l’appellation Neutre et avec raccordement direct à...

  • Page 10: Warnings And Cautionary Messages

    Stromkabel . Dies muss von dem Land, in dem es benutzt wird geprüft werden: Schweiz Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen einhalt- Europe Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung) sein und die Aufschrift <HAR> oder <BASEC> tragen. Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”). Warnings and Cautionary Messages Warning: This product does not contain any serviceable user parts.

  • Page 11: End Of Product Life Span

    Environmental Statement The manufacturer of this product endeavours to sustain an environmentally-friendly policy throughout the entire production process. This is achieved though the following means: • Adherence to national legislation and regulations on environmental production standards. • Conservation of operational resources. •...
  • Page 12 viii...

  • Page 13: Table Of Contents

    Contents Chapter 1: Introduction Overview Switch Architecture Network Management Options Description of Hardware 10/100/1000BASE-T Ports SFP Slots 10 Gigabit Ethernet Module Slots Stacking Ports Port and System Status LEDs Optional Redundant Power Supply Power Supply Receptacles Optional Media Extender Modules Extender Module LED Features and Benefits Connectivity...
  • Page 14 Contents Installing an Optional Module into the Switch Installing an Optional SFP Transceiver Connecting Switches in a Stack Stacking Topologies Connecting to a Power Source Connecting to the Console Port Wiring Map for Serial Cable Chapter 4: Making Network Connections Connecting Network Devices Twisted-Pair Devices Cabling Guidelines...
  • Page 15 Contents Appendix C: Specifications Physical Characteristics Switch Features Management Features Standards Compliances Extender Modules 10GBASE Extender Module (XFP) Appendix D: German Instructions Eine Site Auswählen (Selecting a Site - German) Montage (Rack Mounting Instructions - German) Rack-Montage Glossary Index...
  • Page 16 Tables Table 1-1 Supported SFP Transceivers Table 1-2 Port Status LEDs Table 1-3 System Status LEDs Table 1-4 Supported XFP Transceivers Table 1-5 Module LED Table 3-1 Serial Cable Wiring Table 4-1 Maximum 10GBASE-SR 10 Gigabit Ethernet Cable Length Table 4-2 Maximum 10GBASE-LR 10 Gigabit Ethernet Cable Length Table 4-3 Maximum 10GBASE-ER 10 Gigabit Ethernet Cable Length...
  • Page 17 Figures Figure 1-1 Front and Rear Panels Figure 1-2 Port LEDs Figure 1-3 System LEDs Figure 1-4 Power Supply Receptacles Figure 1-5 Single-Port 10GBASE Module (XFP) Figure 2-1 Collapsed Backbone Figure 2-2 Network Aggregation Plan Figure 2-3 Remote Connections with Fiber Cable Figure 2-4 Making VLAN Connections Figure 3-1...
  • Page 18 Figures...

  • Page 19: Chapter 1: Introduction

    Chapter 1: Introduction Overview The SF-2420GX is an intelligent Layer 2 switch with 24 10/100/1000BASE-T ports, four of which are combination ports that are shared with four SFP transceiver slots (see Figure 1-1, Ports 21-24). The rear panel provides two slots for single-port 10 Gigabit Ethernet hot-swappable expansion modules, and two stacking ports.

  • Page 20: Switch Architecture

    Introduction Switch Architecture The SF-2420GX employs a wire-speed, non-blocking switching fabric. This permits simultaneous wire-speed transport of multiple packets at low latency on all ports. The switch also features full-duplex capability on all ports, which effectively doubles the bandwidth of each connection.

  • Page 21: Description Of Hardware

    Description of Hardware Description of Hardware 10/100/1000BASE-T Ports The switch contains 24 RJ-45 ports that operate at 10 Mbps or 100 Mbps, half or full duplex, or at 1000 Mbps, full duplex. Because all ports on the switch support automatic MDI/MDI-X operation, you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs.

  • Page 22: 10 Gigabit Ethernet Module Slots

    Introduction Table 1-1 Supported SFP Transceivers (Continued) Media Standard Cable Diameter Wavelength Vendor Part Number Maximum (microns) (nm) Distance 1000BASE-LH 9/125 1310 Linksys MGBLH1 40 km Picolight PL-XPL-LC-L13-11 40 km 10 Gigabit Ethernet Module Slots The switch includes two slots on the rear panel for hot-swappable single-port 10GBASE modules with XFP transceivers.

  • Page 23: Table 1-3 System Status Leds

    Description of Hardware System Status LEDs Figure 1-3 System LEDs Table 1-3 System Status LEDs Condition Status Power Green Internal power is operating normally. Amber Internal power supply failure. Power off or failure. Diag Flashing Green System self-diagnostic test in progress. Green System self-diagnostic test successfully completed.

  • Page 24: Optional Redundant Power Supply

    Introduction Table 1-3 System Status LEDs (Continued) Condition Status Stack ID Indicates the switch stack ID. The Master unit is numbered 1. (Note that If the master unit fails and a backup unit takes over, the stack IDs do not change.) Slave units are numbered 2-8.

  • Page 25: Optional Media Extender Modules

    Description of Hardware Optional Media Extender Modules 10GBASE XFP Module Figure 1-5 Single-Port 10GBASE Module (XFP) The module’s XFP slot supports standard 10 Gigabit Ethernet (10G) XFP transceivers. The 10GBASE transceivers operate at 10 Gbps full duplex with support for flow control. Table 1-4 Supported XFP Transceivers Media Standard Vendor Part Number...

  • Page 26: Features And Benefits

    Introduction Features and Benefits Connectivity • 24 10/100/1000 Mbps ports for easy Gigabit Ethernet integration and for protection of your investment in legacy LAN equipment. • Auto-negotiation enables each RJ-45 port to automatically select the optimum communication mode (half or full duplex) if this feature is supported by the attached device;...

  • Page 27: Chapter 2: Network Planning

    Chapter 2: Network Planning Introduction to Switching A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This means that it can partition a network more efficiently than bridges or routers. These switches have, therefore, been recognized as one of the most important building blocks for today’s networking technology.

  • Page 28: Application Examples

    Network Planning Application Examples The SF-2420GX switch is not only designed to segment your network, but also to provide a wide range of options in setting up network connections. Some typical applications are described below. Collapsed Backbone The switch is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet installations where significant growth is expected in the near future.

  • Page 29: Network Aggregation Plan

    In the figure below, the 10/100/1000BASE-T ports in a stack of SF-2420GX switches are providing 1000 Mbps connectivity through other switches. In addition, the switches are also connecting several servers at 10 Gbps.

  • Page 30: Remote Connections With Fiber Cable

    Network Planning Remote Connections with Fiber Cable Fiber optic technology allows for longer cabling than any other media type. A 1000BASE-SX (MMF) link can connect to a site up to 550 meters away, a 1000BASE-LX (SMF) link up to 5 km, and a 1000BASE-LH link up to 70 km. This allows a switch stack to serve as a collapsed backbone, providing direct connectivity for a widespread LAN.

  • Page 31: Making Vlan Connections

    Application Examples Making VLAN Connections The switch supports VLANs which can be used to organize any group of network nodes into separate broadcast domains. VLANs confine broadcast traffic to the originating group, and can eliminate broadcast storms in large networks. This provides a more secure and cleaner network environment.

  • Page 32: Application Notes

    Network Planning Application Notes Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode. As a general rule, the length of fiber optic cable for a single switched link should not exceed: •...

  • Page 33: Chapter 3: Installing The Switch

    Chapter 3: Installing the Switch Selecting a Site Switches can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location. • The site should: - be at the center of all the devices you want to link and near a power outlet. - be able to maintain its temperature within 0 to 40 °C (32 to 104 °F) and its humidity within 35% to 85%, non-condensing - provide adequate space (approximately five centimeters or two inches) on all...

  • Page 34: Equipment Checklist

    Then, before beginning the installation, be sure you have all other necessary installation equipment. Package Contents • SF-2420GX Switch • Four adhesive foot pads • Bracket Mounting Kit containing two brackets and eight screws for attaching the brackets to the switch •...

  • Page 35: Mounting

    Mounting Mounting A switch unit can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow. Rack Mounting Before rack mounting the switch, pay particular attention to the following factors: •...

  • Page 36: Desktop Or Shelf Mounting

    Installing the Switch Mount the device in the rack, using four rack-mounting screws (not provided). Figure 3-3 Installing the Switch in a Rack If installing a single switch only, turn to “Connecting to a Power Source” at the end of this chapter. If installing multiple switches, mount them in the rack, one below the other, in any order.

  • Page 37: Installing An Optional Module Into The Switch

    Installing an Optional Module into the Switch If installing a single switch only, go to “Connecting to a Power Source” at the end of this chapter. If installing multiple switches, attach four adhesive feet to each one. Place each device squarely on top of the one below, in any order. If also installing an RPS, place it close to the stack.

  • Page 38: Installing An Optional Sfp Transceiver

    Installing the Switch Installing an Optional SFP Transceiver Figure 3-6 Inserting an SFP Transceiver into a Slot The switch supports 1000BASE-SX and 1000BASE-LX, and 1000BASE-LH SFP-compatible transceivers. To install an SFP transceiver, do the following: Consider network and cabling requirements to select an appropriate SFP transceiver type.

  • Page 39: Connecting Switches In A Stack

    Connecting Switches in a Stack Connecting Switches in a Stack Figure 3-7 shows how the stack cables are connected between switches in a stack. Each stacking connection is a 48 Gbps full-duplex high-speed serial link using proprietary stacking cables. The switch supports a line- and ring-topology stacking configuration, or can be used stand alone.

  • Page 40: Stacking Topologies

    Installing the Switch Select the Master unit in the stack by pressing the Master button in on only one of the switches. Only one switch in the stack can operate as the Master, all other units operate in slave mode. If more than one switch in the stack is selected as Master, or if no switches are selected, the system will select the unit with the lowest MAC address as the Master.

  • Page 41: Connecting To The Console Port

    Connecting to the Console Port Check the front-panel LEDs as the device is powered on to be sure the Power LED is on. If not, check that the power cable is correctly plugged in. If you have purchased a Redundant Power Supply, connect it to the switch and to an AC power source now, following the instructions included with the package.
  • Page 42 Installing the Switch 3-10...

  • Page 43: Chapter 4: Making Network Connections

    Chapter 4: Making Network Connections Connecting Network Devices The switch is designed to interconnect multiple network segments (or collision domains). It can be connected to network cards in PCs and servers, as well as to hubs, switches or routers. It may also be connected to devices using optional XFP or SFP transceivers.

  • Page 44: Connecting To Pcs, Servers, Hubs And Switches

    Making Network Connections Connecting to PCs, Servers, Hubs and Switches Attach one end of a twisted-pair cable segment to the device’s RJ-45 connector. Figure 4-1 Making Twisted-Pair Connections If the device is a PC card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet.

  • Page 45: Fiber Optic Sfp Devices

    Fiber Optic SFP Devices Equipment Rack (side view) Network Switch w it c h 10 /1 0 0 6 7 2 4 L 3 ES4524C Punch-Down Block Patch Panel Wall Figure 4-2 Network Wiring Connections Fiber Optic SFP Devices An optional Gigabit SFP transceiver (1000BASE-SX, 1000BASE-LX or 1000BASE-LH) can be used for a backbone connection between switches, or for connecting to a high-speed server.

  • Page 46: 10 Gbps Fiber Optic Connections

    Making Network Connections Remove and keep the LC port’s rubber cover. When not connected to a fiber cable, the rubber cover should be replaced to protect the optics. Check that the fiber terminators are clean. You can clean the cable plugs by wiping them gently with a clean tissue or cotton ball moistened with a little ethanol.

  • Page 47: Figure 4-4 Connecting To An Xfp Transceiver

    10 Gbps Fiber Optic Connections Note: When selecting a fiber device, considering safety, please make sure that it can function at a temperature that is not less than the recommended maximum operational temperature of the product. You must also use an approved Laser Class 1 SFP transceiver.

  • Page 48: Connectivity Rules

    Making Network Connections Connectivity Rules When adding hubs (repeaters) to your network, please follow the connectivity rules listed in the manuals for these products. However, note that because switches break up the path for connected devices into separate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices.

  • Page 49: 1000 Mbps Gigabit Ethernet Collision Domain

    Connectivity Rules 1000 Mbps Gigabit Ethernet Collision Domain Table 4-4 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 4-5 Maximum 1000BASE-SX Gigabit Ethernet Cable Length Fiber Size Fiber Bandwidth Maximum Cable Length...

  • Page 50: Cable Labeling And Connection Records

    Making Network Connections Cable Labeling and Connection Records When planning a network installation, it is essential to label the opposing ends of cables and to record where each cable is connected. Doing so will enable you to easily locate inter-connected devices, isolate faults and change your topology without need for unnecessary time consumption.

  • Page 51: Appendix A: Troubleshooting

    Appendix A: Troubleshooting Diagnosing Switch Indicators Table A-1 Troubleshooting Chart Symptom Action Power LED is Off • Check connections between the switch, the power cord, and the wall outlet. • Contact your dealer for assistance. Power LED is Amber • Internal power supply has failed. Contact your local dealer for assistance.

  • Page 52: Power And Cooling Problems

    Troubleshooting Power and Cooling Problems If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet, and verify that the fans on the unit are unobstructed and running prior to shutdown.

  • Page 53: Stack Troubleshooting

    Stack Troubleshooting Stack Troubleshooting If a stack fails to initialize or function, first check the following items: • Check that all stacking cables are properly connected. • Check if any stacking cables appear damaged. • Check that only one Stack Master button is pressed in. •...
  • Page 54 Troubleshooting...

  • Page 55: Appendix B: Cables

    Appendix B: Cables Twisted-Pair Cable and Pin Assignments For 10/100BASE-TX connections, the twisted-pair cable must have two pairs of wires. For 1000BASE-T connections the twisted-pair cable must have four pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be green and the other, green with white stripes.

  • Page 56: Straight-Through Wiring

    Cables Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts MDI Signal Name MDI-X Signal Name Transmit Data plus (TD+) Receive Data plus (RD+) Transmit Data minus (TD-) Receive Data minus (RD-) Receive Data plus (RD+) Transmit Data plus (TD+) Receive Data minus (RD-) Transmit Data minus (TD-) Not used Not used...

  • Page 57: 1000Base-T Pin Assignments

    Twisted-Pair Cable and Pin Assignments You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet connections. EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Crossover Cable White/Orange Stripe Orange White/Green Stripe End A End B Blue White/Blue Stripe Green...

  • Page 58: Cable Testing For Existing Category 5 Cable

    Cables 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).

  • Page 59: Appendix C: Specifications

    Appendix C: Specifications Physical Characteristics Ports 20 10/100/1000BASE-T, with auto-negotiation 4 10/100/1000BASE-T shared with 4 SFP transceiver slots 2 10GBASE extender module slots for XFP transceivers Two slots for stacking transceivers Network Interface Ports 1-24: RJ-45 connector, auto MDI/X 10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45 (100-ohm, UTP cable;...

  • Page 60: Switch Features

    Specifications Humidity Operating: 35% to 85% (non-condensing) Storage: 10% to 95% (non-condensing) AC Input 100 to 240 V, 50-60 Hz, 2A Power Supply Internal, auto-ranging transformer: 100 to 240 VAC, 47 to 63 Hz External, supports connection for redundant power supply Power Consumption 54 Watts (without expansion modules) 66 Watts (with two expansion modules)

  • Page 61: Standards

    Standards Software Loading TFTP in-band, or XModem out-of-band Standards IEEE 802.3-2005 Ethernet, Fast Ethernet, Gigabit Ethernet Full-duplex flow control IEEE 802.3ae 10 Gigabit Ethernet IEEE 802.1D Spanning Tree Protocol IEEE 802.1w Rapid Spanning Tree Protocol IEEE 802.1s Multiple Spanning Tree Protocol IEEE 802.1Q Virtual LAN ISO/IEC 8802-3 CSMA/CD Compliances...

  • Page 62: Extender Modules

    Specifications Extender Modules 10GBASE Extender Module (XFP) Ports 1 slot for 10GBASE XFP transceiver Communication Speed 10 Gbps Communication Mode Full duplex Network Interface XFP slot Standards IEEE 802.3ae 10 Gigabit Ethernet...

  • Page 63: Appendix D: German Instructions

    Appendix D: German Instructions Eine Site Auswählen (Selecting a Site - German) Die Schalter können in ein Standard-19-Zoll-Ausrüstungsgestell oder auf eine flache Ebene montiert werden. Zum Auswählen eines Standortes beachten Sie bitte die nachstehenden Richtlinien. • Die Site sollte: - Sich in der Mitte aller anzuschließenden Geräte sowie in der Nähe einer Netzsteckdose befinden;...

  • Page 64: Montage (Rack Mounting Instructions - German

    German Instructions Montage (Rack Mounting Instructions - German) Switch-Einheiten können an ein standardmäßiges 19-Zoll Einrichtungsrack, einen Arbeitstisch oder ein Regal montiert werden. Folgend finden Sie die Montageanweisungen für jeden Positionstyp Rack-Montage Beachten Sie die folgenden Faktoren, bevor Sie die Rack-Montage beginnen: •...

  • Page 65: Glossary

    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 Fast Ethernet over two pairs of Category 5 or better UTP cable. 1000BASE-LH Long-haul Gigabit Ethernet over two strands of 9/125 micron core fiber cable.
  • Page 66 Glossary 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.
  • Page 67 Glossary IEEE Institute of Electrical and Electronic Engineers. IEEE 802.3 Defines carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications. IEEE 802.3ab Defines CSMA/CD access method and physical layer specifications for 1000BASE-T Gigabit Ethernet. (Now incorporated in IEEE 802.3-2005.) IEEE 802.3ae Defines the physical layer specifications for 10 Gigabit Ethernet.
  • Page 68 Glossary units of MHz per km, which indicates the amount of bandwidth supported by the fiber for a one km distance. Network Diameter Wire distance between two end stations in the same collision domain. Redundant Power Supply (RPS) A backup power supply unit that automatically takes over in case the primary power supply should fail.

  • Page 69: Index

    Index cleaning fiber terminators 4-4, 4-5 Numerics compliances 10 Gbps connectivity rules 4-6 EMC C-3 10 Mbps connectivity rules 4-7 safety C-3 100 Mbps connectivity rules 4-7 connectivity rules 1000 Mbps connectivity rules 4-7 10 Gbps 4-6 1000BASE-LH fiber cable lengths 4-7 10 Mbps 4-7 1000BASE-LX fiber cable lengths 4-7 100 Mbps 4-7...
  • Page 70 Index power requirements 3-1 10BASE-T/100BASE-TX B-1 problems A-2 console port 3-9 RPU in racks 3-4 ports, connecting to 4-1 site requirements 3-1, B-1 power, connecting to 3-8 wiring closet connections 4-2 problems, troubleshooting A-1 laser safety 4-3, 4-4 rear panel receptacles 1-6 LC port connections 4-3, 4-4 redundant power unit 1-6 LED indicators...
  • Page 71 Index tagging 2-5 web-based management 1-2 Index-3...
  • Page 72 Index Index-4...
  • Page 74 SF-2420GX E092006-CS-R01 150xxxxxxxxx...

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