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3Com SuperStack 3 4400 SE 3C17206 Getting Started Manual

3Com SuperStack 3 4400 SE 3C17206 Getting Started Manual

Superstack 3 4400 series

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Table of Contents
SuperStack
Switch 4400 Series

Getting Started Guide

Switch 4400 (3C17203)
Switch 4400 (3C17204)
Switch 4400 PWR (3C17205)
Switch 4400 SE (3C17206)
Switch 4400 FX (3C17210)
http://www.3com.com/
Part No. DUA1720-3AAA07
Published March 2004
3
®

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Table of Contents
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  Summary of Contents for 3Com SuperStack 3 4400 SE 3C17206

  • Page 1: Getting Started Guide

    SuperStack Switch 4400 Series Getting Started Guide Switch 4400 (3C17203) Switch 4400 (3C17204) Switch 4400 PWR (3C17205) Switch 4400 SE (3C17206) Switch 4400 FX (3C17210) http://www.3com.com/ Part No. DUA1720-3AAA07 Published March 2004 ®...
  • Page 2 3Com Corporation reserves the right to revise this documentation and to make changes in content from time MA 01752-3064 to time without obligation on the part of 3Com Corporation to provide notification of such revision or change. 3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose.
  • Page 3: Table Of Contents

    Product Registration NTRODUCING THE UPER TACK WITCH About the Switch 4400 Summary of Hardware Features Switch 4400 — Front View Detail 10BASE-T/ 100BASE-TX Ports 100BASE-FX Ports LEDs Switch 4400 — Rear View Detail Power Socket Redundant Power System Socket Console Port...
  • Page 4 Powering-up the Switch 4400 Checking for Correct Operation of LEDs Connecting a Redundant Power System Using Power over Ethernet Choosing the Correct Cables (Switch 4400, 4400 SE and 4400 PWR) Choosing the Correct Cables (Switch 4400 FX) ETTING P FOR...
  • Page 5 Null Modem Cable PC-AT Serial Cable Modem Cable RJ-45 Pin Assignments ECHNICAL PECIFICATIONS Switch 4400 (24-port) and Switch 4400 SE Switch 4400 PWR (24-port) Switch 4400 (48-port) Switch 4400 FX BTAINING UPPORT FOR YOUR Register Your Product to Gain Service Benefits...
  • Page 6 NDEX EGULATORY OTICES...
  • Page 7: About This Guide

    LANs (Local Area Networks). Before You Start This section contains information about the documents and CD-ROM that accompany your Switch 4400. Release Notes The Release Notes provide important information about the current software release, including new features, modifications, and known problems.
  • Page 8: About Your Cd-Rom

    Screen displays This typeface represents information as it appears on the Syntax Commands Online documentation for the Switch 4400 — refer to Related Documentation on page 9 for details. 3Com Network Supervisor — a powerful and easy-to-use network management platform.
  • Page 9: Related Documentation

    SuperStack 3 Switch Implementation Guide This guide contains information on the features supported by your Switch and how they can be used to optimize your network. It is supplied in PDF format on the CD-ROM that accompanies the Switch. SuperStack 3 Switch Management Quick Reference Guide This guide contains: a list of the features supported by the Switch.
  • Page 10: Accessing Online Documentation

    CD-ROM to a suitable directory. ■ ■ 3Com recommends that you copy the Docs/reference directory as a whole to maintain the structure of the files. Documentation Your suggestions are very important to us. They will help make our Comments documentation more useful to you.
  • Page 11: Product Registration

    3Com product documentation at this e-mail address. Questions related to technical support or sales should be directed in the first instance to your network supplier. Product You can now register your SuperStack 3 Switch on the 3Com web site to Registration receive up-to-date information on your product: http://www.3com.com/register...
  • Page 12 BOUT UIDE...
  • Page 13: Introducing The Super Stack 3 Switch

    NTRODUCING THE UPER This chapter contains introductory information about the Switch 4400 and how it can be used in your network. It covers summaries of hardware and software features and also the following topics: About the Switch 4400 ■ Switch 4400 — Front View Detail ■...
  • Page 14: About The Switch 4400

    The Switch 4400 allows Cascade, Gigabit Ethernet or Fast Ethernet Fiber connections when expansion modules are installed in the expansion slots on the rear of the unit. You can also add the Switch 4400 to any SuperStack The Switch 4400 PWR (3C17205) supports Power over Ethernet on all front panel ports.
  • Page 15: Switch 4400 - Front View Detail

    Switch 4400 — Figure 1 Switch 4400 FX — front view Front View Detail Figure 2 Switch 4400 (24-port) / Switch 4400 SE — front view Port LEDs (Packet and Status) 10BASE-T / 100BASE-TX RJ-45 Ports Figure 3 Switch 4400 PWR — front view...
  • Page 16: 10Base-T/ 100Base-Tx Ports

    100BASE-TX full duplex. The maximum segment length is 100 m (328 ft) over Category 5 twisted pair cable. The 4400 PWR will supply up to 15.4W of power through any of the 24 front panel ports in conformance to the 802.3af specification. The Switch...
  • Page 17: Leds

    RJ-45 port. LEDs Table 4 lists LEDs visible on the front of the Switch, and how to read their status according to color. For information on using the LEDs for problem solving, see “Solving Problems Indicated by LEDs” on page 58.
  • Page 18 The Switch passes its Power On Self Test and continues to operate normally even if one or more modules are disabled. Green When the Switch forms a stack with other Switch 4400 units, the LED indicates the position of the unit in the stack and that a link is present.
  • Page 19: Switch 4400 - Rear View Detail

    Redundant Power To protect against internal power supply failure, you can use this socket System Socket to connect a Switch 4400 to a SuperStack 3 Advanced Redundant Power System (RPS). See “Connecting a Redundant Power System” on page 30. Console Port The console port allows you to connect a terminal and perform remote or local out-of-band management.
  • Page 20: Default Settings

    1: I HAPTER NTRODUCING THE Default Settings Table 5 shows the default settings for the Switch 4400: Table 5 Default Settings 4400 UPER TACK WITCH Feature Automatic IP Configuration Port Status Port Speed Duplex Mode Power over Ethernet Flow Control...
  • Page 21 To make SSH, Webcache redirection, RADIUS (including 802.1x Network Login), Auto VLAN assignment, and Traffic Prioritization available on the SuperStack 3 Switch 4400 SE, upgrade the product to the Switch 4400 SE Enhanced Software Upgrade (3C17207). If you initialize a Switch unit by selecting System > Control > Initialize in...
  • Page 22 1: I 4400 HAPTER NTRODUCING THE UPER TACK WITCH...
  • Page 23: Installing The Switch

    The Power-up Sequence ■ WARNING: Safety Information. Before installing or removing any components from the Switch 4400 or carrying out any maintenance procedures, you must read the safety information provided in Appendix A of this guide. AVERTISSEMENT: Consignes de sécurité. Avant d'installer ou d'enlever tout composant du Switch 4400 ou d'entamer une procédure de...
  • Page 24: Package Contents

    Water or moisture cannot enter the case of the Switch. Air flow is not restricted around the Switch or through the vents in the side of the Switch. 3Com recommends that you provide a minimum of 25mm (1in.) clearance. Air temperature around the Switch does not exceed 40 (104 °C...
  • Page 25: Rack-Mounting

    ■ ■ Rack-mounting The Switch 4400 is 1U high and will fit in most standard 19-inch racks. CAUTION: Disconnect all cables from the Switch before continuing. Remove all self adhesive pads from the underside of the Switch if they have been fitted.
  • Page 26 NSTALLING THE 3 Insert the two screws and tighten with a suitable screwdriver. 4 Repeat steps 2 and 3 for the other side of the Switch. 5 Insert the Switch into the 19-inch rack and secure with suitable screws 6 Connect network cabling.
  • Page 27: Placing Units On Top Of Each Other

    Switch 4400 SE. How To Stack Units To stack two Switch 4400 units you will need to order the SuperStack 3 Switch Cascade Stacking Kit (3C17227). The kit consists of two Cascade Modules and a Cascade Cable. Both Switches must have an unused expansion slot to allow a Cascade Module to be fitted.
  • Page 28: Rules For Stacking Units

    Switch and the Cascade Extender Unit plugs into the Cascade Module. Figure 8 Stacking more than two Switch 4400 units For information on ordering the Cascade Kits contact your supplier. For illustrations and information on how to install the Cascade Kits, refer to the user documentation that accompanies these Kits.
  • Page 29 It is not possible to stack a Switch 4400, Switch 4400 SE, ■ Switch 4400 PWR or Switch 4400 FX unit with SuperStack II or other SuperStack 3 products using the Cascade Stacking Kit (3C17227) or Cascade Extender Kit (3C17228).
  • Page 30: The Power-Up Sequence

    For normal redundancy, the Switch 4400, Switch 4400 SE, and Switch 4400 FX require one Type 2A Power Module (3C16074A). For full redundancy, the Switch 4400, Switch 4400 SE, and Switch 4400 FX require two type 2A Power Modules combined using a Type 2 Y-Cable.
  • Page 31: Using Power Over Ethernet

    CAUTION: The Switch can only use a SuperStack Advanced Redundant Power System output. Using Power over The Switch 4400 PWR can power any IEEE 802.3af compliant device Ethernet through any of its front panel ports. The Switch will support the following 3Com 802.3af equipment:...
  • Page 32: Choosing The Correct Cables (Switch 4400, 4400 Se And 4400 Pwr)

    (CLI). Choosing the Correct All of the ports on the front of the Switch 4400, 4400 SE and 4400 PWR Cables (Switch 4400, are Auto-MDIX, that is they have a cross-over capability. The port can 4400 SE and automatically detect whether it needs to operate in MDI or MDIX mode.
  • Page 33: Choosing The Correct Cables (Switch 4400 Fx)

    Switch rack or patch panel. The RJ-45 connector is now a grounded port. Choosing the Correct All of the ports on the front of the Switch 4400 FX are 100BASE-FX MT-RJ Cables multi-mode ports. The MT-RJ port is a small form factor fiber-optic port (Switch 4400 FX) with the transmit and receive fibers in the same cable.
  • Page 34 2 kilometers (1.24 miles). CAUTION: Do not connect pinned MT-RJ connectors into any port on the Switch 4400 FX as this may damage the unit. The ports have locator pins fitted and are designed for standard (pinless) connectors. To connect a front-panel port to a 100BASE-FX single mode port, or to a port that does not have an MT-RJ connector, an adaptor will be required.
  • Page 35: Setting U P For Management

    ETTING Your Switch can operate in its default state, that is, you can install it and it will work straight away (plug-and-play). However, to make full use of the features offered by the Switch, and to change and monitor the way it works, you have to access the management software that resides on the Switch.
  • Page 36: Setting Up Overview

    ETTING P FOR Setting Up This section gives an overview of what you need to do to get your Switch Overview set up and ready for management when it is in its default state. The whole setup process is summarized in Figure 9. Detailed procedural steps are contained in the sections that follow.
  • Page 37: Ip Configuration

    (Static IP addresses are necessary to ensure that the Switch is always allocated the same IP information.) For most installations, 3Com recommends that you configure the Switch IP information manually. This makes management simpler and more reliable as it is not dependent on a DHCP or BootP server, and eliminates the risk of the IP address changing.
  • Page 38: Preparing For Management

    “SuperStack 3 Switch Management Interface Reference Guide” on the CD-ROM that is supplied with the Switch or on the 3Com Web site. ANAGEMENT your network uses DHCP or BootP to allocate IP information, or flexibility is needed.
  • Page 39: Manually Configuring Ip Information

    ■ ■ Connecting to a Front To set up your Switch manually you can make a connection to a front Panel Port panel port. You must do this whilst the Switch is offline, that is, before you connect the Switch to a network.
  • Page 40 ■ ■ Setting Up the Switch with IP Information You are now ready to manually set up the Switch with IP information. You can do this using the Web interface or the command line interface (CLI) via telnet. Using the Web Interface 1 Power-up the Switch.
  • Page 41 The final page displays a summary of the information entered. The initial set up of your Switch is now complete and the Switch is ready for you to set up your chosen management method. See “Methods of Managing a Switch”...
  • Page 42: Connecting To The Console Port

    VLAN ID. If the unit is new there is only one VLAN (VLAN 1) to choose from. The initial set up of your Switch is now complete and the Switch is ready for you to set up your chosen management method. See “Methods of Managing a Switch”...
  • Page 43 A workstation with terminal emulation software installed, such as ■ Microsoft Hyperterminal. This software allows you to communicate with the Switch via the console port directly, or through a modem. Documentation supplied with the terminal emulation software. ■ A suitable cable: ■...
  • Page 44 Setting Up the Switch with IP Information You are now ready to manually set up the Switch with IP information using the command line interface. 1 The command line interface login sequence begins as soon as the Switch detects a connection to its console port.
  • Page 45 VLAN ID. If the unit is new there is only one VLAN (VLAN 1) to choose from. The initial set up of your Switch is now complete and the Switch is ready for you to set up your chosen management method. See “Methods of Managing a Switch”...
  • Page 46: Viewing Automatically Configured Ip Information

    DHCP or BootP server. If your network does not have a DHCP or BootP server, the workstation running 3Com Network Supervisor must be on the same subnet as the Switch, because Auto-IP addresses are non-routable. Connecting to the...
  • Page 47 1 Connect the workstation to the console port using a standard null modem cable as shown in Figure 14. Figure 14 Connecting a workstation to the Switch via the console port To connect the cable: a Attach the female connector on the cable to the male connector on the console port of the Switch.
  • Page 48 You are now ready to view the automatically allocated IP information using the command line interface. 1 Connect your Switch to the network using an Ethernet cable. As soon as a network connection is made the Switch begins the automatic IP configuration process.
  • Page 49: Methods Of Managing A Switch

    The initial set up of your Switch is now complete and the Switch is ready for you to set up your chosen management method. See “Methods of Managing a Switch” on page 49. If you do not intend to use the command line interface via the console port to manage the Switch, you can logout, disconnect the serial cable and close the terminal emulator software.
  • Page 50: Command Line Interface Management Using Ssh

    HAPTER ETTING P FOR Command Line The Switch 4400 supports Secure Shell version 2 (SSHv2), allowing secure Interface access to the Command Line Interface of the Switch. Management using If you use SSH to administer your Switch and the network traffic is intercepted, no passwords or configuration information will be visible in the data.
  • Page 51: Cli Management Via The Console Port

    To manage a Switch using the command line interface over a network the Network using Telnet: 1 Ensure you have already set up the Switch with IP information as described in “Setting Up Overview” on page 36. 2 Check that you have the IP protocol correctly installed on your management workstation.
  • Page 52: Setting Up Command Line Interface Management Using Ssh

    4 Install an SSH client application on the workstation you want to use to access the switch. 3Com recommends the following SSH clients; PuTTY, OpenSSH and SSH Communications Security Corp Secure Shell. 5 Open an SSH session and access the switch using the switch’s IP address and port number.
  • Page 53: Setting Up Web Interface Management

    For further information on generating a host key on your switch and transferring keys to the Switch using TFTP server please refer to Chapter 11 of the “SuperStack 3 Switch Implementation Guide”. Setting Up Web This section describes how you can set up web interface management Interface over the network.
  • Page 54: Web Management Over The Network

    Management Protocol (SNMP) can manage a Switch if: ■ ■ You can use the 3Com Network Supervisor application that is provided on the CD-ROM that accompanies your Switch to provide SNMP management for your Switch. If you use 3Com Network Supervisor it ANAGEMENT Variable Width Font - Size 10.0...
  • Page 55: Pre-Requisites

    Passwords command line interface, or to change the default passwords, you need to log in with a valid user name and password. The Switch has three default user names, and each user name has a different password and level of access.
  • Page 56 P FOR ■ ■ For more information about default users and passwords, refer to the “Superstack 3 Switch Management Interface Reference Guide” on the Switch CD-ROM. ANAGEMENT The security device user modify command on the CLI, or The Security > Device > User > Modify operation on the web interface.
  • Page 57: Problem Solving

    ROBLEM This chapter helps you to diagnose and solve problems you may have with the operation of your Switch. There is also an explanation of IP addressing. The topics covered are: Solving Problems Indicated by LEDs ■ Solving Hardware Problems ■...
  • Page 58: Solving Problems Indicated By Leds

    HAPTER ROBLEM OLVING Solving Problems If the LEDs on the Switch indicate a problem, refer to the list of suggested Indicated by LEDs solutions below. The Power LED does not light Check that the power cable is firmly connected to the Switch and to the supply outlet.
  • Page 59: Solving Hardware Problems

    ■ The Unit LED is flashing green The Switch unit physically forms a stack with other Switch 4400 units, but cannot be managed as part of that stack because one or more units have not been upgraded to software version 2.0 or later. You must upgrade each unit in the stack to this software version, which is available on the CD-ROM that accompanies your Switch.
  • Page 60 Monitoring and Statistics” in the Switch Implementation Guide supplied in PDF format on the CD-ROM that accompanies the Switch. If more than one fan has failed in the Switch, a warning message will be generated by RMON Email Notification, RMON Trap and also in the following ways: ■...
  • Page 61 4 Power cycle the unit. If a further thermal shutdown occurs, and all environmental conditions are satisfactory, return the unit to 3Com. A device is connected to a Switch 4400 PWR but power is not being supplied If power is not being supplied to a device connected to a Switch 4400 PWR, you should do the following checks: Check that the device is compliant with the 802.3af standard ref.
  • Page 62: Solving Communication Problems

    IP Addressing To be managed correctly, each device on your network (for example a Switch or Hub) must have a unique IP address. IP addresses have the format n.n.n.n where n is a decimal number between 0 and 255. An example IP address is 192.168.100.8.
  • Page 63: Solving Software Upgrade Problems

    If your IP network is internal to your organization only, that is, you do not access the Internet, you may use any arbitrary IP address as long as it is not being used by another device on your network. 3Com suggests you use addresses in the range 192.168.0.0 to 192.168.255.255 with a subnet mask of 255.255.255.0.
  • Page 64 4: P HAPTER ROBLEM OLVING...
  • Page 65: A Safety Information

    You must read the following safety information before carrying out any installation or removal of components, or any maintenance procedures on the Switch 4400. WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully.
  • Page 66: Important Safety Information

    WARNING: Installation and removal of the unit must be carried out by qualified personnel only. WARNING: If installing the Switch 4400 in a stack with SuperStack II or SuperStack 3 units that are narrower than the 4400, the Switch 4400 unit must be installed below the narrower units.
  • Page 67 † Impédance à la terre. WARNING: U.K. only: If connecting a modem to the console port of the Switch 4400, only use a modem which is suitable for connection to the telecommunications system. WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot be used as standard traditional telephone sockets, or to connect the unit to a traditional PBX or public telephone network.
  • Page 68: L'information De Sécurité Importante

    à un personnel qualifié. AVERTISSEMENT: Si vous entassez l'unité Switch avec les unités SuperStack 3 Hub, l'unité Switch 4400 doit être installée en dessous des unités Hub plus étroites. AVERTISSEMENT: Vous devez mettre l’appareil à la terre (à la masse) ce groupe.
  • Page 69 Europe La prise secteur doit être conforme aux normes CEE 7/7 ■ (“SCHKO”) LE cordon secteur doit porter la mention <HAR> ou ■ <BASEC> et doit être de type HO3VVF3GO.75 (minimum). Suisse La prise mâle d'alimentation doit respecter la norme SEV/ASE ■...
  • Page 70: Wichtige Sicherheitsinformationen

    TX (Transmission) à fibres optiques et les embouts de câbles à fibres optiques tant qu'ils sont sous tension. AVERTISSEMENT: Le 4400 PWR (3C17205) prend en charge la mise sous tension par Ethernet au niveau de tous les ports frontaux. Ces ports ne doivent être utilisés que pour le câblage Ethernet au sein d'un même...
  • Page 71 VORSICHT: Der Gerätestecker (der Anschluß an das Gerät, nicht der Wandsteckdosenstecker) muß eine passende Konfiguration für einen Geräteeingang gemäß EN60320/IEC320 haben. VORSICHT: Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden.
  • Page 72 Niemals direkt auf den Faser-TX-Anschluß und auf die Faserkabelenden schauen, während diese eingeschaltet sind. VORSICHT: Das 4400 PWR (3C17205) unterstützt die Stromversorgung per Ethernet an allen vorderen Ports. Diese Ports dürfen nur für die Ethernet-Verkabelung im gleichen Gebäude verwendet werden.
  • Page 73: In Outs

    Null Modem Cable 9-pin to RS-232 25-pin PC-AT Serial Cable 9-pin to 9-pin OUTS...
  • Page 74: Modem Cable

    B: P PPENDIX OUTS Modem Cable 9-pin to RS-232 25-pin RJ-45 Pin Pin assignments are identical for 10BASE-TX and 100BASE-T RJ-45 Assignments connectors. Table 10 Pin assignments Pin Number Signal Ports configured as MDI Transmit Data + Transmit Data + Receive Data + Not assigned Not assigned...
  • Page 75 Table 11 Pin assignments Pin Number Signal Ports configured as MDIX Receive Data + Receive Data - Transmit Data + Not assigned Not assigned Transmit Data Not assigned Not assigned RJ-45 Pin Assignments Function Bidirectional Data B+ Bidirectional Data B- Bidirectional Data A+ Bidirectional Data A- Bidirectional Data D+...
  • Page 76 B: P PPENDIX OUTS...
  • Page 77: Specifications

    –40 ° to +70 °C (-40 ° to 158 °F) 10–95% relative humidity, non-condensing EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32. Operational testing: paras 2.1, 2.2, 2.30 and 2.13). UL 1950, EN60950, CSA 22.2 No. 950, IEC 60950...
  • Page 78 TFTP (RFC 783) DHCP (RFC 2131, RFC 2132, RFC 1534) BOOTP (RFC 951, RFC 1497) Link aggregation (IEEE 802.3ad) Network Login (IEEE 803.1x) * RADIUS (RFC 2618, 2620)* * Supported on a Switch 4400 and an upgraded Switch 4400 SE.
  • Page 79: Switch 4400 Pwr (24-Port)

    –20 ° to +70 °C (-4 ° to 158 °F) 10–95% relative humidity, non-condensing EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32. Operational testing: paras 2.1, 2.2, 2.30 and 2.13). UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950...
  • Page 80: Switch 4400 (48-Port)

    –40 ° to +70 °C (-40 ° to 158 °F) 10–95% relative humidity, non-condensing EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32. Operational testing: paras 2.1, 2.2, 2.30 and 2.13). UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950...
  • Page 81: Switch 4400 Fx

    –40 ° to +70 °C (-40 ° to 158 °F) 10–95% relative humidity, non-condensing EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32. Operational testing: paras 2.1, 2.2, 2.30 and 2.13). UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950...
  • Page 82 C: T PPENDIX ECHNICAL PECIFICATIONS (continued) Standards Supported SNMP SNMP protocol (RFC 1157) MIB-II (RFC 1213) Bridge MIB (RFC 1493) RMON MIB II (RFC 2021) Remote Monitoring MIB (RFC 1757) MAU MIB (RFC 2239) MIB II Traps (RFC 1215) RS232 (RFC 1659) Interfaces (RFC 2233) Ether-like MIB (RFC 2665) MAU MIB (RFC 2668)
  • Page 83: Upport For Your

    3Com Extended Warranty and Professional Services is available at http://www.3com.com/ Contact your authorized 3Com reseller or 3Com for additional product and support information. Troubleshoot You will find support tools posted on the 3Com web site at Online http://www.3com.com/ ■ BTAINING...
  • Page 84: Access Software Downloads

    Downloads of software initially purchased with the product. In order to access these Software Updates you must first register your product on the 3Com web site at First time users will need to apply for a user name and password. A link to...
  • Page 85 To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA). Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, will be returned to the sender unopened, at the sender’s expense. If your...
  • Page 86 BTAINING UPPORT FOR YOUR Country Telephone Number Latin America Telephone Technical Support and Repair Antigua 1 800 988 2112 Argentina 0 810 444 3COM Aruba 1 800 998 2112 Bahamas 1 800 998 2112 Barbados 1 800 998 2112 Belize...
  • Page 87 74 null modem cable 73 RJ45 74 serial cable 73 pin-outs 73 ports 16 console 19 power over ethernet using 31 power socket 19 powering-up a Switch 4400 30 problem solving 57 communication problems 62 hardware problems 59 NDEX...
  • Page 88 NDEX IP addressing 59 LEDs 58 product name 26 rack mounting a Switch 4400 25 Redundant Power System. See RPS related documentation 9 RPS 19 connecting 30 socket 19 safety information English 66 French 68 German 70 serial number of the Switch 26 serial port.
  • Page 89 EGULATORY OTICES FCC S TATEMENT NFORMATION CSA S TATEMENT CE S TATEMENT UROPE VCCI S TATEMENT 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.