3Com 4228G, 4226T manual Switch 4250T 3C17302

Page 73

Switch 4250T (3C17302)

73

Switch 4250T (3C17302)

Physical Dimensions

Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 274 mm (10.8 in.)

 

Weight: 2.83 kg (6.23 lbs)

 

 

 

 

Environmental Requirements

 

 

Operating Temperature

0 ° to 40 °C (32 ° to 104 °F)

 

Storage Temperature

–40 ° to +70 °C (-40 ° to 158 °F)

 

Operating Humidity

10–95% relative humidity, non-condensing

Standards

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).

 

 

 

Safety

 

 

Agency Certifications

UL60950, EN60950, CSA 22.2 No. 60950, IEC 60950

 

 

 

EMC

 

 

Emissions

CISPR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,

 

ICES-003 Class A, AS/NZS 3548 Class A, VCCI Class A, CNS 13438 Class A,

 

EN61000-3-2, EN61000-3-3

 

Immunity

EN 55024

 

 

 

Heat Dissipation

60 watts maximum (205 Btu/h maximum)

 

 

 

Power Supply

 

 

AC Line Frequency

50/60 Hz

 

Input Voltage

90–240 VAC

 

Current Rating

2.3 A (amps)(maximum)

 

 

 

 

Standards Supported

SNMP

Terminal Emulation

 

SNMP protocol (RFC 1157)

Telnet (RFC 854)

 

MIB-II (RFC 1213)

Protocols Used for Administration

 

Bridge MIB (RFC 1493)

UDP (RFC 768)

 

RMON MIB II (RFC 2021)

IP (RFC 791)

 

Remote Monitoring MIB (RFC

ICMP (RFC 792)

 

1757)

TCP (RFC 793)

 

 

MAU MIB (RFC 2239)

ARP (RFC 826)

 

 

TFTP (RFC 783)

 

DHCP (RFC 2131, RFC 2132, RFC 1534)

 

BOOTP (RFC 951, RFC 1497)

 

 

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Contents SuperStack United States Government Legend 3Com Corporation 350 Campus Drive Marlborough, MAContents Setting UP for Management PIN -OUTS Safety InformationPage About this Guide Icon Description ConventionsConvention Description Documentation RelatedAbout this Guide Introducing Family About the SwitchFront View Detail Switch 4200 FamilyIntroducing the Superstack 3 Switch 4200 Series 1000BASE-T GBICs Fiber GBICsColor Indicates Port Status LEDs 10BASE-T/100BASE-TX ports Port Status LEDs Gbic portsColor Indicates Power/Self Test LEDUnit LEDs Alert LEDRear View Detail System RPS. See Connecting a Redundant Power System onDuplex Mode Feature Switch 4200 Family Automatic IP ConfigurationRmon Alarm Quality of Service QoSInstalling the Switch Choosing a Suitable Package ContentsSite Rack-mounting Fitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the SwitchTop of Each Other Placing Units OnStacking Units Powering-up Power-upSwitch 4200 Family SequenceColor 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 Configure IP information manually for your Switch or view Setting UpAutomatically configured IP information OverviewAutomatic IP Configuration Manual IP ConfigurationSetting UP for Management Pre-requisites Manually Configuring IP InformationConfiguring the Workstation with IP Information Connecting the Workstation to the SwitchSetting Up the Switch 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 Viewing Configured IPAutomatically 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 Network Using Telnet Command LineInterface Management CLI Management viaInterface Setting Up WebChoosing a Browser Management Protocol Snmp can manage a Switch if Setting Up SnmpOver the Network Management workstationUser 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 SolvingSolutions below Solving ProblemsPower LED does not light On powering-up, the Power/Self Test LED lights yellowSolving Communication Problems ProblemsSolving Hardware Snmp fan fail trap hardware failure IP AddressingFormation Solving StackHow do you obtain a registered IP Address? 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 PC-AT Serial Cable Null Modem CablePin to RS-232 25-pin Pin to 9-pinRJ-45 Pin Modem CableAssignments Pin Number 10/100 1000Pin Number 10/100 1000 Appendix B PIN-OUTS Switch 4226T 3C17300 Terminal Emulation Protocols Used for AdministrationSwitch 4250T 3C17302 Switch 4228G 3C17304 Register Your ServicesProduct PurchaseTroubleshoot Access SoftwareOnline DownloadsContact 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.