48 10/100 Ports + 2 Combo SFP Gigabit Ports + 2 10/100/1000 Gigabit Ports Multi-Layer Stackable Management Switch MIL-SM4804G Quick Installation Guide
Quick Installation Guide 48 10/100 Ports + 2Combo SFP + 2 Gigabit Copper Multi-Layer Stackable Management Switch Layer 2 Stackable Switch with 50 100BASE-TX (RJ-45) Ports, and 2 Gigabit Combination Ports (RJ-45/SFP)
MIL-SM4804G 90000444 REV A
Regulatory Approval • • • • • • • FCC Class A UL 60950 CSA C22.2 No. 60950 EN60950 CE EN55022 Class A EN55024 Canadian EMI Notice This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations Cet appareil numerique de la classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada.
Trademarks The MiLAN logo and MiLAN Technology trademarks are registered trademarks of MiLAN Technology in the United States and/or other countries. To Contact MiLAN Technology For prompt response when calling for service information, have the following information ready: - Product serial number and revision - Date of purchase - Vendor or place of purchase You can reach MiLAN Technology technical support at: E-mail: support@milan.com Telephone: +1.408.744.2751 Fax: +1.408.744.
Compliances and Safety Warnings 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.
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.
Contents Chapter 1: Introduction Overview Switch Architecture Network Management Options Description of Hardware 10BASE-T/100BASE-TX Ports 1000BASE-T/SFP Ports Stacking Ports Port and System Status LEDs Power Supply Receptacles Features and Benefits Connectivity Expandability Performance Management Chapter 2: Network Planning Introduction to Switching Application Examples Collapsed Backbone Network Aggregation Plan Remote Connections with Fiber Cable Making VLAN Connections Application Notes Chapter 3: Inst
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 4-1 4-1 4-1 4-1 4-2 4-2 4-4 4-5 4-5 4-6 4-6 4-6 4-7 Appendix A: Troubleshooting A-1 Diagnosin
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 Port Status LEDs System Status LEDs Serial Cable Wiring Maximum 1000BASE-T Gigabit Ethernet Cable Length Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths Maximum 1000BASE-LX Gigabit Ethernet Cable Length Maximum 1000BASE-LH Gigabit Ethernet Cable Length Maximum Fast Ethernet Cable Length Maximum Ethernet Cable Length Troubleshooting Chart Power/RPS LEDs 10/100BASE-TX MD
Figures Figure 1-1 Figure 1-2 Figure 1-3 Figure 1-4 Figure 1-5 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 3-7 Figure 3-8 Figure 4-1 Figure 4-2 Figure 4-3 Figure B-1 Figure B-2 Figure B-3 xii Front and Rear Panels Stacking Ports Port LEDs System LEDs Power Supply Receptacles Collapsed Backbone Network Aggregation Plan Remote Connections with Fiber Cable Making VLAN Connections RJ-45 Connections Attaching the Brackets Installing the S
Chapter 1: Introduction Overview The MIL-SM4804G switch is a stackable Fast Ethernet switch with 48 10BASE-T/ 100BASE-TX ports, and two 1000BASE-T ports1 that operate in combination with two Small Form Factor Pluggable (SFP) transceiver slots. These switches also provide two 1 Gbps built-in stacking ports for connecting up to four MIL-SM4804G units in a stack. The stacking ports can also be used as normal Ethernet ports in standalone mode.
1 Introduction Switch Architecture The MIL-SM4804G employs a wire-speed, non-blocking switching fabric2. This permits simultaneous wire-speed transport of multiple packets at low latency on all ports. The switches also features full-duplex capability on all ports, which effectively doubles the bandwidth of each connection. The switches uses store-and-forward switching to ensure maximum data integrity.
1 Description of Hardware Each port also supports IEEE 802.3x auto-negotiation of flow control3, so the switch can automatically prevent port buffers from becoming saturated. 1000BASE-T/SFP Ports These are combination Gigabit RJ-45 ports with shared Small Form Factor Pluggable (SFP) transceiver slots (See Figure 1-1, Ports 25-26/49-50). If an SFP transceiver (purchased separately) is installed in a slot and has a valid link on the port, the associated RJ-45 port is disabled.
1 Introduction Stacking Ports The unit provides two stacking ports that provide a 4 Gbps stack backplane connection. You can stack up to four MIL-SM4804G units using Category 5 Ethernet cables (purchased separately). The Master button enables one switch in the stack to be selected as the master. This is the unit through which you manage the entire stack. The stacking ports can also be used as normal Ethernet ports in standalone mode by pressing the Uplink button.
Description of Hardware 1 Port and System Status LEDs The MIL-SM4804G includes a display panel for key system and port indications that simplify installation and network troubleshooting. The LEDs, which are located on the front panel for easy viewing, are shown below and described in the following tables.
1 Introduction System LEDs Figure 1-4 System LEDs Table 1-2 System Status LEDs LED Condition PWR On Green The unit’s internal power supply is operating normally. On Amber The unit’s internal power supply has failed. Diag RPS Stack Master 1-6 Status Off The unit has no power connected. On Green The system diagnostic test has completed successfully. Flashing Green The system diagnostic test is in progress. On Amber The system diagnostic test has detected a fault.
1 Features and Benefits Power Supply Receptacles There are two power receptacles on the rear panel of the switch. The standard power receptacle is for the AC power cord. The receptacle labeled “RPS” is for the optional Redundant Power Supply (RPS). RPS DC 12V 4.
1 Introduction Performance • Transparent bridging • Aggregate duplex bandwidth of 17.6 Gbps (MIL-SM4804G) • Switching table with a total of 8K MAC address entries • Provides store-and-forward switching • Wire-speed filtering and forwarding • Supports flow control, using back pressure for half duplex and IEEE 802.
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 MIL-SM4804G 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 MIL-SM4804G is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet installations where significant growth is expected in the near future.
2 Application Examples Network Aggregation Plan When used in standalone mode, the MIL-SM4804G provides 52 parallel bridging ports (i.e., 52 distinct collision domains), which can be used to collapse a complex network down into a single efficient bridged node, increasing overall bandwidth and throughput. You can stack up to four MIL-SM4804G switch units together, forming a single “virtual” switch containing up to 200 ports. The whole stack can be managed through the Master unit using a single IP address.
2 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 Gigabit Ethernet Switch to serve as a collapsed backbone, providing direct connectivity for a widespread LAN. The figure below illustrates this switch connecting multiple segments with fiber cable.
2 Application Examples Making VLAN Connections This 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. 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 RJ-45 Connector Figure 3-1 RJ-45 Connections Equipment Checklist After unpacking this switch, check the contents to be sure you have received all the components. Then, before beginning the installation, be sure you have all other necessary installation equipment.
Mounting 3 Mounting This switch 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: • Temperature: Since the temperature within a rack assembly may be higher than the ambient room temperature, check that the rack-environment temperature is within the specified operating temperature range. (See page C-1.
3 2. 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 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. If also installing an RPS, mount it in the rack below the other devices.
3 Mounting So montieren Sie Geräte an ein Rack: 1. Befestigen Sie die Metallwinkel mit den im Metallwinkel-Montageset erhältlichen Schrauben an dem Gerät. 2. Befestigen Sie das Gerät mit vier Rackmontageschrauben (nicht beigelegt) an dem Rack. 3. Wenn Sie nur einen Switch installieren, dann springen Sie bitte über zu "Verbinden mit einer Stromquelle" auf Seite 3-8 am Ende dieses Kapitels. 4.
3 Installing the Switch Installing an Optional SFP Transceiver Figure 3-5 Installing an SFP Transceiver into a slot This switch supports 1000BASE-SX, 1000BASE-LX, and 1000BASE-LH SFP transceivers. To install an SFP transceiver, do the following: 1. Consider network and cabling requirements to select an appropriate SFP transceiver type. 2. Insert the transceiver with the optical connector facing outward and the slot connector facing down.
3 Connecting Switches in a Stack You can form a stack containing up to four MIL-SM4804G units. To connect switches in a stack, perform the following steps: 1. Enable the stacking ports on each unit (i.e., the Stack button pushed out) Note: Pressing the Stack button during normal operation will cause the system to reboot. 2. Plug one end of a stack cable (ordered separately) into the Down (left) port of the top unit. 3. Plug the other end of the stack cable into the Up (right) port of the next unit.
3 6. Installing the Switch Select the Master unit in the stack by pressing in the Master button 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 stack will not function. Connecting to a Power Source To connect a switch to a power source: 1. Insert the power cable plug directly into the AC receptacle located at the back of the switch.
Connecting to the Console Port 3 Connecting to the Console Port The DB-9 serial port on the switch’s back panel is used to connect to the switch for out-of-band console configuration. The command-line-driven configuration program can be accessed from a terminal or a PC running a terminal emulation program. The pin assignments used to connect to the serial port are provided in the following table.
3 Installing the Switch 3-10
Chapter 4: Making Network Connections Connecting Network Devices These switches are designed to be connected to 10, 100 or 1000 Mbps network cards in PCs and servers, as well as to other switches and hubs. They may also be connected to remote devices using optional 1000BASE-SX, 1000BASE-LX, or 1000BASE-LH SFP transceivers. Twisted-Pair Devices Each device requires an unshielded twisted-pair (UTP) cable with RJ-45 connectors at both ends.
4 Making Network Connections Connecting to PCs, Servers, Hubs and Switches 1. Attach one end of a twisted-pair cable segment to the device’s RJ-45 connector. Figure 4-1 Making Twisted-Pair Connections 2. If the device is a network 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 the section “Network Wiring Connections.”) Otherwise, attach the other end to an available port on the switch.
Twisted-Pair Devices 3. 4 Label the cables to simplify future troubleshooting. See “Cable Labeling and Connection Records” on page 4-7.
4 Making Network 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. Each single-mode fiber port requires 9/125 micron single-mode fiber optic cable with an LC connector at both ends. Each multimode fiber optic port requires 50/125 or 62.5/125 micron multimode fiber optic cabling with an LC connector at both ends.
4 Connectivity Rules 3. Connect one end of the cable to the LC port on the switch and the other end to the LC port on the other device. Since LC connectors are keyed, the cable can be attached in only one orientation. 46 Figure 4-3 Making Fiber Port Connections 4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the connection is valid.
4 Making Network Connections Category 5 cabling for running 1000BASE-T is a simple test of the cable installation to be sure that it complies with the IEEE 802.3-2002 standards.
Cable Labeling and Connection Records 4 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.
4 4-8 Making Network Connections
Appendix A: Troubleshooting Diagnosing Switch Indicators Table A-1 Troubleshooting Chart Symptom Action PWR LED is Off • 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.
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. If you still cannot isolate the problem, the internal power supply may be defective. Installation Verify that all system components have been properly installed.
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. Also, an RJ-45 connector must be attached to both ends of the cable. Caution: DO NOT plug a phone jack connector into any RJ-45 port.
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 You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet.
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: Specifications Physical Characteristics Ports 48 10/100BASE-TX, with auto-negotiation Two 10/100/1000BASE-T shared with two SFP transceiver slots Two 10/100/1000BASE-T or Stacking Ports (button selection) Network Interface Ports 1-48: 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) Ports 49-52: RJ-45 connector, auto MDI/X 10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45
C Specifications Humidity Operating: 5% to 95% (non-condensing) Power Supply Internal, auto-ranging transformer: 100 to 240 VAC, 50 to 60 Hz, 2A External, supports a 14-pin connection for a redundant power supply Power Consumption 54 Watts maximum Maximum Current 2.0 A @ 100 VAC 1.0 A @ 240 VAC Switch Features Forwarding Mode Store-and-forward Throughput Wire speed Flow Control Full Duplex: IEEE 802.
Standards C Standards IEEE 802.3-2002 Ethernet, Fast Ethernet, Gigabit Ethernet Full-duplex flow control Link Aggregation Control Protocol IEEE 802.1D Spanning Tree Protocol IEEE 802.1w Rapid Spanning Tree Protocol IEEE 802.1X Port Access Authentication IEEE 802.
C C-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-FX IEEE 802.3 specification for 100 Mbps Ethernet over two strands of 50/125, 62.5/ 125 micron, or 9/125 micron core fiber cable. 100BASE-TX IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 UTP cable. 1000BASE-LH Specification for long-haul Gigabit Ethernet over two strands of 9/125 micron core fiber cable. 1000BASE-LX IEEE 802.
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, and 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 in IEEE 802.3-2002.) IEEE 802.3x Defines Ethernet frame start/stop requests and timers used for flow control on full-duplex links. (Now incorporated in IEEE 802.3-2002.) IEEE 802.3z Defines CSMA/CD access method and physical layer specifications for 1000BASE Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.) LAN Segment Separate LAN or collision domain.
Glossary RJ-45 Connector A connector for twisted-pair wiring. Switched Ports Ports that are on separate collision domains or LAN segments. 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.
Index Numerics 10 Mbps connectivity rules 4-6 100 Mbps connectivity rules 4-6 1000 Mbps connectivity rules 4-6 1000BASE-LH fiber cable length 4-6 1000BASE-LX fiber cable length 4-6 1000BASE-SX fiber cable length 4-6 1000BASE-T pin assignments B-3 ports 1-3 100BASE-TX cable length 4-6 ports 1-2 10BASE-T cable length 4-6 ports 1-2 A adhesive feet, attaching 3-5 air flow requirements 3-1 applications central wiring closet 2-3 collapsed backbone 2-2 remote connections with fiber 2-4 VLAN connections 2-5 B bra
Index rack mounting 3-3 site requirements 3-1 problems, troubleshooting A-1 R laser safety 4-4 LC port connections 4-4 LED indicators Diag 1-6 Power 1-6 problems A-1 Stack 1-6 location requirements 3-1 rack mounting 3-3 rear panel of switch 1-1 rear panel receptacles 1-7 RJ-45 port connections 4-1 pinouts B-3 RMON 1-2 RS-232 port 1-2 rubber foot pads, attaching 3-5 M S management agent 1-2 features 1-8, C-2 out-of-band 1-2 SNMP 1-2 web-based 1-2 Maximum Fast Ethernet Cable Distance 4-6 mounting the sw
Index V VLANs tagging 2-5 W web-based management 1-2 Index-3
Index Index-4
MIL-SM4804G 90000444 REV A
