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INS T ALLA TION GUIDE ta SMC8 9 2 6EM SMC8 950EM TigerS tack II 10 / 100 /1000 2 4 / 48-P or t St ackable La yer 3 Gig abit Sw i tc h.
20 Mason Ir vine, CA 92618 Phone: (949) 67 9-8000 Tige rStac k II 10/100/1000 Installation Guide F rom SMC's Tiger line of f eature-rich workgroup LAN solutions August 2009 Pub.
Information furnished by SMC Networ ks, Inc. (SMC) is believed to be accurate and reliable. However , no re sponsibility is as sumed by SMC for its use, nor for any infringements of patents or other right s of third parties which may result from its use.
Warranty and Product Registration T o register SMC products and to review the detailed warranty statement, please refer to the Support Section of the SMC Website at http://www .
i 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 lim its are designed to provide reasonable protection against harmful interfer ence when the equipment is o perated in a commercial environment.
ii CE Mark Declaration of Conformance for EMI and Safety (EEC) This information technology equipment comp lies with the requirements of the Council Directive 89/336/EEC on the Approximation of t he la.
iii Safety Complian ce W arning: Fiber Optic Port Safety Avertissment: Port s pour fibres optiques - sécurité sur le plan optique W arnhi nwei s: Faseroptikanschlüsse - Optische Sicherheit PSE Alar.
iv Important! Before making connections, make sure you have the correct cord set. Check it (read the label on the ca ble) against the following: Veuillez lire à fond l'information de la sécurit.
v 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 terr e, ce groupe doit être alimen.
vi Warnings and Cautionary Me ssages Environme ntal Statemen t The manufacturer of this product endeavours to sustain an environmen tally-friendly policy throughout the entire production process. Th is is achieved though the following means: • Adherence to national legislation and regulations on environmenta l production standards.
vii Documentation All printed documentation for this product us es biodegradable paper that originates from sustained and managed forests. The inks used in the printing process are non-toxic.
viii 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.
ix Contents Chapter 1: Intr od uction 1-1 Overview 1-1 Switch Architecture 1-2 Network Management Options 1-2 Description of Hardware 1-3 10/100/1000BASE-T Ports 1-3 SFP Slots 1-3 10 Gigabit Ethernet .
x Contents Desktop or Shelf Mounting 3-4 Installing an Optional Module into the Switch 3-5 Installing an Optional SFP Transceiver 3-6 Connecting Switches in a Stack 3-7 Stacking Topol ogies 3-8 Connec.
xi Contents Appendix C: Specifications C-1 Physical Characteristics C-1 Switch Features C-3 Management Features C-3 Standards C-3 Compliances C-4 Extender Modules C-4 10GBASE Extender Module (XFP) C-4.
xii Tables Table 1-1 Port Status LEDs 1-4 Table 1-2 System Stat us LEDs 1-4 Table 1-3 Supported XFP Transce ivers 1-6 Table 1-4 Module LEDs 1-6 Table 3-1 Serial Cable Wiring 3-9 Table 4-1 Maximum 10GB.
xiii Figures Figure 1-1 Front Panels 1-1 Figure 1-2 Rear Panel 1-2 Figure 1-3 Port LEDs 1-4 Figure 1-4 System LEDs 1-4 Figure 1-5 Power Supply Sockets 1-5 Figure 1-6 Single-Port 10GBASE Module (XFP) 1.
xiv Figures.
1-1 Chapter 1: Introduction Overview The SMC8926EM and SMC8950EM are intelli gen t multilayer swit ches (Laye r 2, 3) with 24/48 10 /100/1000BASE-T port s, four of which are combin ation ports * that are shared with four SFP transceiver slot s (see Fig ure 1-1, Port s 21-24/ 45-48).
Introduction 1-2 1 Figure 1-2 Rear Panel Switch Architecture These Gigabit Ethernet switches employ a wire-speed, no n-blo cking switching fabric. This pe rmits s imultaneou s wire-speed transp ort of multip le packet s at low latency on al l port s.
1-1 Chapter 1: Introduction Overview The SMC8926EM and SMC8950EM are intelligen t multilayer switches (Layer 2, 3) with 24/48 10 /100/1000BASE-T port s, four of which are combin ation port s * that are shared with four SFP transceiver sl ots (see Fig ure 1-1, Port s 21-24/45-48).
Introduction 1-4 1 Figure 1-3 Por t LEDs Figure 1-4 System LEDs Table 1-1 Port Status LEDs LED Condition Status Link/ Activity/ Speed On/Flashing Amber Port has a valid link at 10 or 100 Mbps. Flashing indicates activity . On/Flashing Green Port has a valid link at 1000 Mbps.
Description of Hardware 1-5 1 Optional Redundant Power Supply The switch supports an optional Redundant Power Supply (RPS), that can supply power to the switc h in the event the internal power supply fails. Power Supply Sockets There are two power sockets on the rear p anel of each switch.
Introduction 1-6 1 Optional Media Extender Modules 10GBASE XFP Module Figure 1-6 Single-Po r t 10GBASE Module (XFP) The module’ s XFP slot suppo rts standard 10 Gigabit Eth ernet (10G) XFP transceivers. The 10GBASE tr ansceivers operate at 10 Gbp s full duplex with support for flow c ontrol.
Features and Benefi ts 1-7 1 Expandability • Supports 1000BASE-SX, 1000BASE-LX, and 1000BASE-LH SFP tran scei vers. • Optional 10GBASE single-port expansion modul e with an XFP transceiver slot . Performance • Transparent bridging. • Aggregate duplex bandwidth of up to 88 Gbps for the SMC8926EM or 136 Gbps for the SMC8950EM.
Introduction 1-8 1.
2-1 Chapter 2: Network Planning Introduction to Switching A network switch al lows simult aneous transmission of mu ltiple p ackets v ia non-crossbar switching.
2-2 Network Planning 2 Application Examples The Gigabit Ethernet Swi tch es are not only designed to segment your network, but also to provide a wi de range of options i n setting up network connect ions and linki ng VLANs or IP subnets. Some typical applications are des cribed below .
2-3 Application Exampl es 2 Network Aggregation Plan With 24 or 48 parall el bridging port s (i.e., 24 or 48 distinct collision domai ns), a Gigabit switch stack ca n collapse a comple x network down into a single ef ficient bridged node, increasi ng overall bandwid th and throughput.
2-4 Network Planning 2 Remote Connections with Fiber Cable Fiber optic tec hnology allows for longer c abling than a ny other media type. A 1000BASE-SX (MMF) link can connect to a site up t o 550 met ers away , a 1000BASE-LX (SMF) link up to 5 km, and a 1000BASE-LH lin k up to 70 km.
2-5 Application Exampl es 2 Making VLAN Connections These switches support VLANs which can be used to organize any group of network nodes into se parate broadc ast domains. VLANs confine broadcast traff ic to the originating g roup, and can el iminate broadcast storms in large networks.
2-6 Network Planning 2 Using Layer 3 Routing VLANs can signific antly enhance network perf ormance and security . However , if you use conventional rout ers to interconnect VLANs, you can l ose most of your performance advant age.
2-7 Application Notes 2 Application Notes 1. Full-duplex operat ion only appli es to point-to-point access (such as when a switch is att ached to a workstat ion, server or another switch ). When the switch is connected to a hub , bot h devices must opera te in half-duplex mode.
2-8 Network Planning 2.
3-1 Chapter 3: Installing the Switch Selecting a Site Switches can be mounted i n a sta ndard 19-i nch equip ment ra ck or on a flat surf ace. Be sure to follow the guideli nes below when choosi ng a location. • The site should: - be at the center of all the devices you want to link and near a power outlet.
3-2 Installing the Switch 3 Figure 3-1 R J-45 Connections Equipment Checklist After unpa ckin g the switch, check the content s to be sure you have received all the components . Then, before begi nning the i nstallat ion, be sure you have all other necessary inst allation equipment.
3-3 Mounting 3 Mounting A switch unit can be mo unted i n a s t an dard 1 9-inc h equ ipme nt ra ck or on a des kto p or shelf. Mounting in structions for each t ype of site follow .
3-4 Installing the Switch 3 2. Mount the device in the rack, usi ng four rack-mounting screws (not provide d). Figure 3-3 Installing the Switch in a Rack 3. If install ing a single switch only , turn to "Connecting to a Power Source" at the end of this chapter .
3-5 Installing an Op tional Module into the Switch 3 3. If inst alling a single switch only , go to "Connecting to a Power Source" at t he end of this chapter . 4. If inst alling multipl e switches, att ach four adhesi ve feet to each one. Pl ace each device squarely on top of t he one below , in any order .
3-6 Installing the Switch 3 Installing an Optional SFP Transceiver Figure 3-6 I nserting an SF P Transceiver into a Slot These switches support 1000BASE-SX and 1000 BASE-LX, and 1000BASE-LH SFP-compatible transceivers. T o install an SFP transceiver , do the following: 1.
3-7 Connecting Switches in a Stack 3 Connecting Switches in a Stack Figure 3-7 shows h ow the stack cables are connected between switc hes in a st ack. Each stacking con nection is a 48 Gbps f ull -duplex high-speed serial l ink using proprietary st acking cables.
3-8 Installing the Switch 3 5. Select the Master un it in th e st ack b y pressing th e Master bu tton in o n only on e of the switches. Only one switch in the st ack can operate as the Master , all other unit s operate in slave mode.
3-9 Connecting to the Con sole Port 3 3. Check the front-p anel LEDs as the device is powered on to be sure the Power LED is on. If not, check t hat the powe r cable i s correctly plugge d in.
3-10 Installing the Switch 3.
4-1 Chapter 4: Making Network Connections Connecting Network Devices This switch is designed to inte rconnect multiple segments (or colli sion 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 devi ces using optional XFP or SFP transceivers.
4-2 Making Network Conne ctions 4 Connecting to PCs, Servers, Hubs and Switche s 1. Attach one end of a twisted-pa ir cable segment to the devic e’s RJ-45 connector .
4-3 Fiber Optic SFP Devices 4 Figure 4-2 Network Wir in g Connections Fiber Optic SFP Devices An optional Gigabit SFP t r ansceiver (1000BASE-SX, 1000BASE-LX or 1000BASE-LH) can be used for a backbone connectio n between switches, or for connecting to a high-sp eed server .
4-4 Making Network Conne ctions 4 3. Connect one end of the cable to t he LC port on the switch and the oth er end to the LC port on the other device. Since LC connectors are keyed, the cable can be attache d in only one orient ation. Figure 4-3 Making Connect ions to SFP Transceive rs 4.
4-5 10 Gbps Fiber Op tic Connections 4 1. Remove and keep the port’ s protective cover . When not connected to a fiber cable, the cover should be replaced to protect the opti cs.
4-6 Making Network Conne ctions 4 Connectivity Rules When adding hubs (repeaters) to you r networ k, please fo ll ow the connectivit y rules listed in the manuals fo r these products.
4-7 Connectivity Rules 4 1000 Mbps Gigabit Ethernet Collision Domain 100 Mbps Fast Ethernet Collision Domain 10 Mbps Ethernet Collision Domain Table 4-4 Maximum 1000BASE-T Gigabit Ethernet Cab le Leng.
4-8 Making Network Conne ctions 4 Cable Labeling and Connection Records When planning a network inst allation, it is essential to label the opposing ends of cables and to record where each cable is co nnected.
A-1 Appendix A: Troubleshooting Diagnosing Switch Indicators Diagnosing Power Problems with the LEDs The Power and RPU LEDs work in combination t o indicate power statu s as follows. Table A-1 T roubleshooting Chart Symptom Action Power LED is Off • Check connections between the switch, the power cord, and the wall outlet.
A-2 Troubleshooting A Power and Cooling Problems If the power indicator doe s not turn on when the power cord is plugged in, you may have a problem with the power out let, power cord, or inte rnal power supply .
A-3 Stack Troubleshooting A Stack Troubleshooting If a stack fails to initialize or function, first check th e following items: • Check that all stacking cables are pr operly connected. • Check if any stacking cables appear damaged. • Check that only one Stack Master button is pressed in.
A-4 Troubleshooting A.
B-1 Appendix B: Cables Twisted-Pair Cable and Pin Assignments For 10/100BASE-TX connections, the twi s ted-pair cable must have two p airs of wires. For 1000BASE-T connect ions the twis ted -pair cable must have f our pairs of wires. Each wi re pai r is identi fied by two d i fferent colors.
B-2 Cables B Straight-Through Wiring If the twisted-p air cable is to join two ports and onl y one of the ports has an in ternal crossover (MDI-X), the two p airs of wires must b e straight-through.
B-3 T wisted-Pair Cable a nd Pin Assignments B Y ou must connect all four wire p airs as shown in the following diagram to support Gigabit Ethernet connec tions.
B-4 Cables B Cable Testing for Existing Category 5 Cable Instal led Category 5 cabling must p ass tests for Attenuation, Near-End Crosst alk (NEXT), and Far-End Crosstal k (FEXT). This cable testing informati on is specified in the ANSI/TIA/EIA-TSB-67 st andard.
B-5 Fiber Standards B G.653 Disper sion-Shi fted Fibe r Single-mode, 9/12 5-micron core Lon ger spans and extended reach. Optimized for operatio n in th e region from 1500 to 1600-nm. G.654 1550-nm Loss-Minimized FiberSingle-mode, 9/125-mic ron core Extended long-haul applications.
B-6 Cables B.
C-1 Appendix C: Specifications Physical Characteristics Ports SMC8926EM:20 10/100/1000BASE-T , with auto-negotia tion 4 10/100/1000 BASE-T shared wi th 4 SFP transcei ver slots 2 10GBASE extender modu.
C-2 Specifications C Wei gh t SMC8926EM: 3.72 kg (8.20 lbs) SMC8950EM: 4.34 kg (9.57 lbs) Size 44.0 x 33.1 x 4.4 cm (17.3 x 1 2 . 2 x 1.7 in.) T e mperature Operating: 0 to 50 °C (32 to 122 °F) S to.
C-3 Switch Features C Switch Features Forwarding Mode S tore-and-forward Throughput Wire speed Flow Control Full Duplex: IEEE 802 .3x Half Duplex: Back pressure Management Features In-Band Managemen t.
C-4 Specifications C Compliances CE Mark Emissions FCC Class A Industry Canada Class A EN55022 (CISPR 22) Class A EN 61000-3-2/3 Immunity EN 61000-4-2/3/4/5/6/8 /1 1 Safety UL 60950-1 & CSA 60950-.
Glossary-1 Glossary 10BASE-T IEEE 802.3 sp ecification f or 10 Mbps Ethernet ov er two p airs of Ca tegory 3, 4, o r 5 UTP cable. 100BASE-TX IEEE 802.3u specificat ion for 100 Mbp s Fast Ethernet over two pairs of Category 5 or better UTP cable. 1000BASE-LH Long-haul Gigabit Et hernet over two strands of 9/125 mi cron core fiber cable.
Glossary Glossary-2 Auto-Negotiation Signalling method al lowing each node t o select its opt imum operational mode (e.g., speed and duplex mode) based on the capabil ities of the node to whi ch it is connected. Bandwidth The diffe rence between the highest and l owest frequencies availa ble for network signals.
Glossary-3 Glossary IEEE Institute of Electrical a nd Electroni c Engineers. IEEE 802.3 Defines carrier sense multiple access with collisi on detection (CSMA/CD) access method and physical lay er specifications. IEEE 802.3ab Defines CSMA/CD access met hod and physical layer specif ic ations for 1000BASE-T Gigabit Ethern et.
Glossary Glossary-4 units of MHz per km, which indicates t he amount of band width support ed by the fiber for a one km distance. Network Diameter Wire distance bet ween t wo end stati ons in the same collision domain.
Index-1 Numerics 10 Gbps connec tivity rules 4-6 10 Mbps connecti vity rules 4-7 100 Mbps connectivity rules 4-7 1000 Mbps connectivit y rules 4-7 1000BASE-LH fiber cable lengt hs 4-7 1000BASE-LX fibe.
Index Index-2 port connections 4-1 power requiremen ts 3-1 problems A-2 RPU in racks 3-4 site requir em e n ts 3-1 wiring closet connection s 4-2 L laser safety 4-3, 4-4 LC port connections 4-3, 4-4 L.
Index Index-3 V VLANs routing 2-6 tagging 2-5 W web-based management 1-2.
Index Index-4.
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20 Mason • Irvine, CA 92618 • Phn: 949 -679-8000 • www. smc.com 150200062800A R02 150200000054A R01 SMC8 9 2 6EM SMC8 950EM.
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