3Com 4226T, 4228G, 4250T manual Regulatory Notices

Page 83

REGULATORY NOTICES

FCC STATEMENT

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. This equipment generates, uses

 

and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,

 

may cause harmful interference to radio communications. Operation of this equipment in a residential area is

 

likely to cause harmful interference to radio communications, in which case the user will be required to

 

correct the interference at their own expense.

 

 

INFORMATION TO THE USER

If this equipment does cause interference to radio or television reception, which can be determined by

 

turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of

 

the following measures:

 

■ Reorient the receiving antenna.

 

■ Relocate the equipment with respect to the receiver.

 

■ Move the equipment away from the receiver.

 

■ Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits.

 

If necessary, the user should consult the dealer or an experienced radio/television technician for additional

 

suggestions. The user may find the following booklet prepared by the Federal Communications Commission

 

helpful:

 

How to Identify and Resolve Radio-TV Interference Problems

 

This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No.

 

004-000-00345-4.

 

In order to meet FCC emissions limits, this equipment must be used only with cables which comply with IEEE

 

802.3.

 

 

CSA STATEMENT

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment

 

Regulations.

 

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur

 

du Canada.

 

 

CE STATEMENT (EUROPE)

This product complies with the European Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC as

 

amended by European Directive 93/68/EEC.

 

Warning: This is a class A product. In a domestic environment this product may cause radio interference in

 

which case the user may be required to take adequate measures.

 

 

VCCI STATEMENT

 

Page 82 Page 84
Image 83
Page 82 Page 84
Contents SuperStack United States Government Legend 3Com Corporation 350 Campus Drive Marlborough, MAContents Setting UP for Management PIN -OUTS Safety InformationPage About this Guide Convention Description ConventionsIcon Description Documentation RelatedAbout this Guide Introducing Family About the SwitchFront View Detail Switch 4200 FamilyIntroducing the Superstack 3 Switch 4200 Series Port Status LEDs Gbic ports Fiber GBICs1000BASE-T GBICs Color Indicates Port Status LEDs 10BASE-T/100BASE-TX portsAlert LED Power/Self Test LEDColor Indicates Unit LEDsRear View Detail System RPS. See Connecting a Redundant Power System onQuality of Service QoS Feature Switch 4200 Family Automatic IP ConfigurationDuplex Mode Rmon AlarmInstalling the Switch Site Package ContentsChoosing a Suitable Rack-mounting Fitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the SwitchStacking Units Placing Units OnTop of Each Other Sequence Power-upPowering-up Switch 4200 FamilyColor State Power/Self Test LED colorsCross-over Cable Straight-through Cable Fiber cablesTransceivers Approved Gbic The 3Com approved Gbic transceivers areInstalling the Switch Gbic Installing the Switch Setting UP for Management Overview Setting UpConfigure IP information manually for your Switch or view Automatically configured IP informationAutomatic IP Configuration Manual IP ConfigurationSetting UP for Management Pre-requisites Manually Configuring IP InformationSetting Up the Switch with IP Information Connecting the Workstation to the SwitchConfiguring the Workstation with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu Connecting a workstation to the Switch via the console port Setting Up the Switch with IP Information Example top-level command line interface menu Automatically Configured IPViewing Viewing Automatically Configured IP Information Viewing IP Information via the Console Port Methods of Managing a Switch Refer to Setting Up Command Line Interface Management on CLI Management via Command LineNetwork Using Telnet Interface ManagementChoosing a Browser Setting Up WebInterface Management workstation Setting Up SnmpManagement Protocol Snmp can manage a Switch if Over the NetworkUser Default Name Password Access Level Default UsersSecurity Device User Modify operation on the web interface Setting UP for Management For Technical Support information, see Appendix D Problem SolvingOn powering-up, the Power/Self Test LED lights yellow Solving ProblemsSolutions below Power LED does not lightIP Addressing ProblemsSolving Communication Problems Solving Hardware Snmp fan fail trap hardware failureHow do you obtain a registered IP Address? Solving StackFormation Solving Software Upgrade Problems Problem Solving Safety Information This must be approved for the country where it is used Important Safety InformationImportant Safety Information ’information de Sécurité Importante Schko Wichtige Sicherheitsinformationen Vorsicht Europe Appendix a Safety Information Pin to 9-pin Null Modem CablePC-AT Serial Cable Pin to RS-232 25-pinPin Number 10/100 1000 Modem CableRJ-45 Pin AssignmentsPin Number 10/100 1000 Appendix B PIN-OUTS Switch 4226T 3C17300 Terminal Emulation Protocols Used for AdministrationSwitch 4250T 3C17302 Switch 4228G 3C17304 Purchase ServicesRegister Your ProductDownloads Access SoftwareTroubleshoot OnlineContact Us Latin America Telephone Technical Support and Repair Country Telephone Number800 876 Appendix D Obtaining Support for Your Product Numbers IndexIndex Regulatory Notices

4250T, 4226T, 4228G specifications

The 3Com 4228G, 4226T, and 4250T are professional-grade network switches designed for businesses seeking to enhance their network infrastructure. These models offer robust performance and reliability, catering to various networking needs, from small offices to large enterprise environments.

The 3Com 4228G switch is a 28-port gigabit Ethernet switch designed for high-bandwidth applications. It provides 24 Gigabit Ethernet ports with 802.3af Power over Ethernet (PoE) capability, allowing devices such as IP phones and wireless access points to be powered directly through the Ethernet cables. This feature simplifies installation and reduces additional cabling costs. The switch also supports VLAN tagging for network segmentation, improving security and performance. Its advanced traffic management lets IT administrators prioritize network traffic effectively, ensuring critical applications receive the necessary bandwidth.

On the other hand, the 3Com 4226T is a 26-port gigabit Ethernet switch, primarily designed for environments requiring a high level of connectivity without PoE. It offers similar features to the 4228G, such as VLAN support and enhanced traffic management capabilities. The 4226T is ideal for businesses that do not require power over Ethernet yet need reliable, high-speed networking capabilities. With 26 ports, this switch is an excellent choice for medium-sized enterprises looking to upgrade their network infrastructure without overwhelming their existing resources.

The 3Com 4250T is a more advanced switch, offering 48 Gigabit Ethernet ports and a robust feature set suitable for more complex networking environments. It includes Layer 2 and Layer 3 functionality, allowing for advanced routing and switching capabilities, making it highly adaptable to various network designs. The 4250T also simplifies network management through its extensive configuration options and support for IPv6. Moreover, it features an efficient cooling system and reduced power consumption, aligning with today’s growing demand for energy-efficient solutions.

All three models utilize advanced technologies such as Spanning Tree Protocol (STP) for loop prevention, QoS mechanisms to prioritize traffic, and comprehensive security features to protect the network from unauthorized access. With their different port configurations and capabilities, the 3Com 4228G, 4226T, and 4250T switches provide exceptional performance and flexibility, making them ideal for businesses aiming to enhance their networking capabilities.
Top Page Image Contents