SM24-100SFP-AH Fast Ethernet Switch Installation Guide
Installation Guide Fast Ethernet Switch Layer 2 Workgroup Switch with 24 100BASE-BX (SFP) Ports, 2 1000BASE-T (RJ-45) and 2 Combination Gigabit (RJ-45/SFP) Ports
SM24-100SFP-AH E082008-DT-R01 150200069500A
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.
• Voltage dips, short interruptions and voltage variations immunity test according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30% Reduction @500 ms, >95% Reduction @5000 ms) LVD: ii • EN 60950-1:2001
Safety Compliance Warning: Fiber Optic Port Safety CLASS I LASER DEVICE 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 ends when they are powered on. Avertissment: Ports pour fibres optiques - sécurité sur le plan optique DISPOSITIF LASER DE CLASSE I Ne regardez jamais le laser tant qu'il est sous tension.
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. 18 AWG - not longer than 2 meters, or 16 AWG. - Type SV or SJ - 3-conductor The cord set must have a rated current capacity of at least 10 A The attachment plug must be an earth-grounding type with NEMA 5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V) configuration. Denmark The supply plug must comply with Section 107-2-D1, Standard DK2-1a or DK2-5a.
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 la terre (masse).
Stromkabel. Dies muss von dem Land, in dem es benutzt wird geprüft werden: Schweiz Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen einhalten. Europe Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung) sein und die Aufschrift oder 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.
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. • Waste reduction and safe disposal of all harmful un-recyclable by-products. • Recycling of all reusable waste content.
About This Guide Purpose This guide details the hardware features of this device, including the physical and performance-related characteristics, and how to install it. Audience The guide is intended for use by network administrators who are responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area Networks).
Contents Chapter 1: Introduction Overview Switch Architecture Network Management Options Description of Hardware SFP Slots Console Port Port and System Status LEDs Power Supply Sockets Features and Benefits Connectivity Expandability Performance Management Chapter 2: Network Planning Introduction to Switching Application Examples Collapsed Backbone Network Aggregation Plan Remote Connection with Fiber Cable Making VLAN Connections Application Notes Chapter 3: Installing the Switch Selecting a Site Equipmen
Contents Chapter 4: Making Network Connections Connecting Network Devices Twisted-Pair Devices Cabling Guidelines Connecting to PCs, Servers, Hubs and Switches Network Wiring Connections Fiber Optic SFP Devices Connectivity Rules 1000BASE-T Cable Requirements 1000 Mbps Gigabit Ethernet Collision Domain 100 Mbps Fast Ethernet Collision Domain 10 Mbps Ethernet Collision Domain Cable Labeling and Connection Records Appendix A: Troubleshooting Diagnosing Switch Indicators Diagnosing Power Problems with the LED
Tables Table 1-1 Table 1-2 Table 3-1 Table 4-1. Table 4-2. Table 4-3. Table 4-4. Table 4-5. Table 4-6. Table A-1. Table A-2. Table B-1. Table B-2.
Figures Figure 1-1. Figure 1-2. Figure 1-3. Figure 1-4. Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 3-1. Figure 3-2. Figure 3-3. Figure 3-4. Figure 3-5. Figure 3-6. Figure 4-1. Figure 4-2. Figure 4-3. Figure B-1. Figure B-2. Figure B-3.
Chapter 1: Introduction Overview The SM24-100SFP-AH is an intelligent switch with 24 100BASE SFP transceiver slots, two Gigabit combination ports1 that are comprised of a RJ-45 port and an SFP transceiver slot and 2 Gigabit stacking ports. There is also an SNMP-based management agent embedded on the main board. This agent supports both in-band and out-of-band access for managing the switch.
Introduction 1 Switch Architecture The SM24-100SFP-AH switch employs a wire-speed, non-blocking switching fabric. This permits simultaneous wire-speed transport of multiple packets at low latency on all ports. This switch also features full-duplex capability on all ports, which effectively doubles the bandwidth of each connection. This switch uses store-and-forward switching to ensure maximum data integrity.
Description of Hardware 1 Port and System Status LEDs The LEDs, which are located on the front panel for easy viewing, are shown below and described in the following table. Port Status LEDs Combination Gigabit Port Status LEDs Figure 1-2. SM24-100SFP-AH Port Status LEDs Table 1-1 SM24-100SFP-AH Port Status LEDs LED Condition Status Blinking Green The port has a valid 100 Mbps link. Blinking indicates activity. Off There is no valid link on the port.
Introduction 1 System Status LEDs Figure 1-3. System Status LED Table 1-2 System Status LEDs LED Condition Pwr (Power) On Green Internal power is operating normally. On Amber Internal power supply has failed. Off Power off or failure. On Green The backup power supply is operating normally. On Yellow The backup power supply is plugged in but faulty, such as a thermal or fan failure. Off No backup power supply is connected.
Features and Benefits 1 Power Supply Sockets There is one standard power socket on the rear panel of each switch for the AC power cord. Backup Power Supply Power Socket B PS DC IN 1 2 V 4 . 5A (4 , 5 A) 1 0 0 /1 1 5/ 22 0 /2 3 0 V 1 .0 /1 .0 /0 .5 /0 .5 A 5 0 /6 0 HZ Figure 1-4. Power Supply Sockets Note: There is no BPS currently supported by this switch. The RPS100W will be supported in a future release.
Introduction 1 Management • “At-a-glance” LEDs for easy troubleshooting • Network management agent: • Manages switch in-band or out-of-band • Supports Telnet, SNMP/RMON and Web-based interface 1-6
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. The switch has, therefore, been recognized as one of the most important building blocks for today’s networking technology.
2 Network Planning Application Examples The SM24-100SFP-AH 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 in the following pages. Collapsed Backbone The SM24-100SFP-AH is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet installations where significant growth is expected in the near future.
Application Examples 2 Network Aggregation Plan With 24 parallel bridging ports (i.e., 24 distinct collision domains), the switch can collapse a complex network down into a single efficient bridged node, increasing overall bandwidth and throughput. In the figure below, the SFP ports on the switch are providing 100 Mbps connectivity through layer 2 switches. In addition, the switch is also connecting several servers at 1000 Mbps.
2 Network Planning Remote Connection 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 the switch to serve as a collapsed backbone, providing direct connectivity for a widespread LAN.
Application Examples 2 Making VLAN Connections The SM24-100SFP-AH 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. VLANs can be based on untagged port groups, or traffic can be explicitly tagged to identify the VLAN group to which it belongs.
2 Network Planning Application Notes 1. 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. 2. Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub. 3.
Chapter 3: Installing the Switch Selecting a Site Switch units 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.
3 Installing the Switch Optional Rack-Mounting Equipment If you plan to rack-mount the switch, be sure to have the following equipment available: • Four mounting screws for each device you plan to install in a rack—these are not included • A screwdriver (Phillips or flathead, depending on the type of screws used) Mounting The switch units can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow.
Mounting 2. 3 Mount the device in the rack, using four rack-mounting screws (not provided). Be sure to secure the lower rack-mounting screws first to prevent the brackets being bent by the weight of the switch. Figure 3-2. Installing the Switch in a Rack 3. If installing a single switch only, turn to “Connecting to a Power Source” at the end of this chapter. 4. If installing multiple switches, mount them in the rack, one below the other, in any order. 5.
3 Installing the Switch 3. If installing a single switch only, go to “Connecting to a Power Source” at the end of this chapter. 4. If installing multiple switches, attach four adhesive feet to each one. Place each device squarely on top of the one below, in any order. 5. If also installing an RPS, place it close to the stack. Installing an Optional SFP Transceiver 100BASE-X transceiver 1000BASE-X transceiver Figure 3-4.
Connecting to a Power Source 3 Connecting to a Power Source To connect a device to a power source: 1. Insert the power cable plug directly into the socket located at the back of the device. B PS 1 0 0 /1 1 5/ 22 0 /2 3 0 V 1 .0 /1 .0 /0 .5 /0 .5 A 5 0 /6 0 HZ DC IN 1 2 V 4 . 5A (4 , 5 A) Figure 3-5. Power Sockets 2. Plug the other end of the cable into a grounded, 3-pin socket. Note: For International use, you may need to change the AC line cord.
3 Installing the Switch Wiring Map for Serial Cable Table 3-1 Serial Cable Wiring Switch’s 8-Pin Serial Port Null Modem PC’s 9-Pin DTE Port 6 RXD (receive data) <---------------------------- 3 TXD (transmit data) -----------------------------> 2 RXD (receive data) 5 SGND (signal ground) ------------------------------ 3 TXD (transmit data) 5 SGND (signal ground) No other pins are used.
Chapter 4: Making Network Connections Connecting Network Devices The SM24-100SFP-AH is designed to interconnect multiple segments (or collision domains) using optional SFP transceivers. It can be connected to network cards in PCs and servers, as well as to hubs, switches or routers. Two combination 1000BASE-T/SFP ports provide the uplink connection from the switch to other switches or routers at the central office.
4 2. Making Network 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. (See “Network Wiring Connections” on page 4-2.) Otherwise, attach the other end to an available port on the switch. Make sure each twisted pair cable does not exceed 100 meters (328 ft) in length. 3.
Fiber Optic SFP Devices 4 Fiber Optic SFP Devices An optional SFP transceiver (100BASE-FX, 100BASE-BX, 1000BASE-SX, 1000BASE-LX, or 1000BASE-LH) can be used for a backbone connection between switches, or for connecting to a server or PC. Each multimode fiber optic port requires 50/125 or 62.5/125 micron multimode fiber optic cabling with an LC connector at both ends. Each single-mode fiber port requires 9/125 micron single-mode fiber optic cable with an LC connector at both ends.
4 Making Network Connections The maximum length for fiber optic cable operating at Fast Ethernet speed will depend on the fiber type as listed under “100 Mbps Fast Ethernet Collision Domain” on page 4-5. The maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type as listed under “1000 Mbps Gigabit Ethernet Collision Domain” on page 4-4.
Connectivity Rules 4 Table 4-4. Maximum 1000BASE-LH Gigabit Ethernet Cable Length Fiber Size Fiber Bandwidth Maximum Cable Length 9/125 micron single-mode fiber N/A 2 m - 70 km (7 ft - 43.5 miles) LC Connector 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 100BASE-FX 62.5/125 or 50/125 micron multimode fiber 2 km (1.
4 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. To best manage the physical implementations of your network, follow these guidelines: • Clearly label the opposing ends of each cable.
Appendix A: Troubleshooting Diagnosing Switch Indicators Table A-1. Troubleshooting Chart Symptom Action Pwr LED is Off • Power supply is disconnected. • Check connections between the switch, the power cord, and the wall outlet. • Contact your dealer for assistance. Pwr LED is Amber • Internal power supply has failed. Contact your local dealer for assistance. OK LED is Amber • Power cycle the switch to try and clear the condition. • If the condition does not clear, contact your dealer for assistance.
A 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.
Appendix B: Cables Twisted-Pair Cable and Pin Assignments For 10/100BASE-TX connections, a 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. Also, an RJ-45 connector must be attached to both ends of the cable.
B Cables Table B-1. 10/100BASE-TX MDI and MDI-X Port Pinouts Pin MDI Signal Name MDI-X Signal Name 1 Transmit Data plus (TD+) Receive Data plus (RD+) 2 Transmit Data minus (TD-) Receive Data minus (RD-) 3 Receive Data plus (RD+) Transmit Data plus (TD+) 6 Receive Data minus (RD-) Transmit Data minus (TD-) 4,5,7,8 Not used Not used Note: The “+” and “-” signs represent the polarity of the wires that make up each wire pair.
Twisted-Pair Cable and Pin Assignments B 10/100BASE-TX Crossover Cable White/Orange Stripe Orange End A 1 2 3 4 5 6 7 8 White/Green Stripe Blue White/Blue Stripe Green White/Brown Stripe 1 2 3 4 5 6 7 8 End B Brown Figure B-3. Crossover Wiring 1000BASE-T Pin Assignments All 1000BASE-T ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs.
B 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).
Appendix C: Supported SFP Transceivers Please contact Transition Networks for proper SFP selection. Note: Power budget constraints must be considered when calculating the maximum cable length for your specific environment.
C C-2 Supported SFP Transceivers
Appendix D: Specifications Physical Characteristics Ports 24 100BASE-X ports, with auto-negotiation 2 1000BASE-T ports (RJ-45) 2 Combination Gigabit ports (RJ-45/SFP) Network Interface Ports 1-24: SFP (100BASE-FX, 100BASE-BX) Ports 25-28: 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; Category 5 or better) 1000BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better) Buffer Architecture 4 Mbits Aggregate Bandwidth 12.
D Specifications Temperature Operating: 0 to 45 °C (32 to 113 °F) Storage: -40 to 70 °C (-40 to 158 °F) Humidity Operating: 10% to 90% (non-condensing) Power Supply Internal, auto-ranging transformer: 100 to 240 V, 50-60 Hz, 1.5 A Power Consumption 30 Watts maximum Maximum Current 0.25 A @ 115 VAC 0.12 A @ 230 VAC Switch Features Forwarding Mode Store-and-forward Throughput Wire speed Flow Control Full Duplex: IEEE 802.
Standards D Standards IEEE 802.3-2005 Ethernet, Fast Ethernet, Gigabit Ethernet IEEE 802.1D (Bridging) ISO/IEC 8802-3 Compliances CE Mark Emissions FCC Class A EN55022 (CISPR 22) Class A EN 61000-3-2/3 Immunity EN 61000-4-2/3/4/5/6/8/11 Safety UL/CUL (UL 60950-1, CSA 22.
D D-4 Specifications
Glossary 10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3, 4, or 5 UTP cable. 100BASE-BX IEEE 802.3-2005 specification for 100 Mbps Fast Ethernet over one strand of 9/125 micron core fiber cable. 100BASE-FX IEEE 802.3-2005 specification for 100 Mbps Fast Ethernet over two strands of 9/125, 50/125 or 62.5/125 micron core fiber cable. 100BASE-TX IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 UTP cable.
Glossary 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, or Gigabit Ethernet. End Station A workstation, server, or other device that does not forward traffic.
Glossary IEEE 802.3u Defines CSMA/CD access method and physical layer specifications for 100BASE-TX Fast Ethernet. (Now incorporated into IEEE 802.3-2005.) IEEE 802.3x Defines Ethernet frame start/stop requests and timers used for flow control on full-duplex links. (Now incorporated into IEEE 802.3-2005.) IEEE 802.3z Defines CSMA/CD access method and physical layer specifications for 1000BASE Gigabit Ethernet.(Now incorporated into IEEE 802.3-2005.) LAN Segment Separate LAN or collision domain.
Glossary TIA Telecommunications Industry Association 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. 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.
Index Numerics E 10 Mbps connectivity rules 4-5 100 Mbps connectivity rules 4-5 1000BASE-T pin assignments B-3 ports 1-2 100BASE-TX pin assignments B-1 ports 1-2 10BASE-T pin assignments B-1 ports 1-2 electrical interference, avoiding 3-1 equipment checklist 3-1 Ethernet connectivity rules 4-5 A G adhesive feet, attaching 3-3 air flow requirements 3-1 application example 2-2 B brackets, attaching 3-2 buffer size D-1 C cable labeling and connection records 4-6 cleaning fiber terminators 4-3 complianc
Index Web-based 1-2 mounting the switch in a rack 3-2 on a desktop or shelf 3-3 multimode fiber optic cables 4-3 N network connections 4-1 examples 2-2 O out-of-band management 1-2 P package contents 3-1 pin assignments B-1 console port 3-5 ports, connecting to 4-1 power, connecting to 3-5 R rack mounting 3-2 rear panel receptacles 1-5 RJ-45 port 1-2 connections 4-1 Index-2 pinouts B-3 rubber foot pads, attaching 3-3 S screws for rack mounting 3-2 site selelction 3-1 SNMP agent 1-2 specifications com
SM24-100SFP-AH E082008-DT-R01 150200069500A
