Contact Us 77

 

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

 

 

product is registered and under warranty, you can obtain an RMA

 

 

number online at http://eSupport.3com.com/. First time users will

 

 

need to apply for a user name and password.

 

 

 

 

 

Contact Us

3Com offers telephone, e-mail and internet access to technical support

 

 

and repair services. To access these services for your region, use the

 

 

appropriate telephone number, URL or e-mail address from the list below.

 

 

Telephone numbers are correct at the time of publication. Find a current

 

 

directory of contact information posted on the 3Com web site at

 

 

http://csoweb4.3com.com/contactus/

 

 

 

 

 

 

 

Country

Telephone Number

Country

Telephone Number

 

 

 

 

Asia, Pacific Rim Telephone Technical Support and Repair

 

 

Australia

1 800 678 515

Philippines

1235 61 266 2602 or

 

Hong Kong

800 933 486

 

1800 1 888 9469

 

India

+61 2 9424 5179 or

P.R. of China

800 810 3033

 

 

000800 650 1111

Singapore

800 6161 463

 

Indonesia

001 803 61009

S. Korea

080 333 3308

 

Japan

00531 616 439 or

Taiwan

00801 611 261

 

 

03 3507 5984

Thailand

001 800 611 2000

 

Malaysia

1800 801 777

 

 

 

New Zealand

0800 446 398

 

 

 

Pakistan

+61 2 9937 5083

 

 

 

You can also obtain support in this region using the following e-mail: apr_technical_support@3com.com

Or request a repair authorization number (RMA) by fax using this number:

+ 65 543 6348

 

 

Europe, Middle East, and Africa Telephone Technical Support and Repair

 

From anywhere in these

+44 (0)1442 435529

 

regions, call:

 

 

From the following countries, you may use the numbers shown:

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3Com 4226T, 4228G, 4250T manual Contact Us

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.