3Com Hubs and Switches warranty W i t c h e s, Fast Ethernet Hubs

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Fast Ethernet Hubs

OfficeConnect

Fast Ethernet Hubs

Fast Ethernet networking quite simply means faster networking—quicker exchange of data between PCs and swift downloading from the network. OfficeConnect delivers these benefits and more with a new range of Fast Ethernet products designed specifically for the small office. At last, Fast Ethernet is affordable for all users. Each product features plug-and-play installation and requires no configura- tion. An easy-to-read, front-panel display includes diagnostic LEDs

for monitoring network activity.

OfficeConnect Hub TP400 3C16723

The OfficeConnect Hub TP400 is the most cost-effective way to add Fast Ethernet to small business environments, branch offices, or independent workgroups. Compact and reliable, this hub provides four unmanaged 100BASE-TX ports.

Four 100BASE-TX ports

Class II Fast Ethernet repeater lets you easily connect two Fast Ethernet hubs

OfficeConnect Hub TP1200 3C16721

The OfficeConnect Hub TP1200 provides 12 100BASE-TX ports for allowing unmanaged Fast Ethernet connectivity for up to 12 users while enabling you to connect more users if needed.

Twelve 100BASE-TX ports

Class II Fast Ethernet repeater lets you easily connect two Fast Ethernet hubs

OfficeConnect Dual Speed Hub 8 3C16750

The OfficeConnect Dual Speed Hub 8 lets you connect both Ethernet and Fast Ethernet workstations and devices. Ideal for those wishing to extend an existing Ethernet network into Fast Ethernet, the Dual Speed Hub 8 provides a cost-effective migration path.

Eight auto-sensing 10BASE-T or 100BASE-TX shared ports

Built-in switch seamlessly connects 10 Mbps and 100 Mbps users

Class II Fast Ethernet repeater lets you easily connect two Fast Ethernet hubs

OfficeConnect Hub TP1200

H u b

OfficeConnect Hub TP800 3C16722

The OfficeConnect Hub TP800 pro- vides eight unmanaged 100BASE-TX ports for high-bandwidth connectivity to shared Fast Ethernet networks or for direct 100 Mbps desktop connectivity to power users.

Eight 100BASE-TX ports

Class II Fast Ethernet repeater lets you easily connect two Fast Ethernet hubs

Fast Ethernet (100 Mbps) Configuration Rules

All OfficeConnect Fast Ethernet hubs are Class II. You can directly connect two Class II Fast Ethernet hubs (Class I hubs cannot be directly connected to other

Fast Ethernet hubs). The total length of cable (A+B+C below) between two workstations and a nonrepeater piece of equipment (such as a switch), must not exceed 205 m (672 ft). Each cable (A, B, or C) must not exceed 100 m (328 ft).

3Com recommends that Category 5 cables be used and that the cable

(B)between the Fast Ethernet hubs is not longer than 5 m (16.4 ft). This allows the maximum hub-to-work- station cable length (A or C) of 100 m (328 ft) to be used, as shown in the example.

100 Mbps link

 

 

Workstation

Switch

A

 

 

 

 

B

 

 

 

 

 

Hub

 

 

 

 

C

 

 

 

Hub

Example:

 

 

Workstation

 

 

100 m

 

 

(328 ft)

Workstation

 

 

 

 

 

5 m

 

Speed

(16.4 ft)

Dual

 

8

 

100 m

Hub

 

 

 

 

 

 

(328 ft)

 

 

100

Mbps

 

 

 

 

 

Hub

 

 

 

Workstation

s & S w i t c h e s

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Contents Hubs & Switches Transcend Management For OfficeConnect Hub 8/TPM OfficeConnect Hubs and Switches for Easy NetworkingOfficeConnect Switch 140M only Switches OfficeConnect LED IndicatorsEthernet Hubs Fast Ethernet HubsEthernet Hubs Fast Ethernet Hubs W i t c h e sSmall Business Home Networking Kits SwitchesSmall Business Network Kits Bundles OfficeConnect Hubs SpecificationsB s & S w i t c h e s Warranty Summary OfficeConnect SwitchesOfficeConnect Switch 140 Unmanaged 10+100BASE-TX Switch OfficeConnect Switch 140M Managed 10+100BASE-TX Switch

Hubs and Switches specifications

3Com Hubs and Switches have been pivotal in networking technology, especially during the 1990s and early 2000s, when businesses were rapidly adopting Local Area Networks (LANs). Known for their reliability and user-friendly designs, 3Com's networking products laid the groundwork for the modern infrastructure we rely on today.

One of the main features of 3Com hubs was their ability to connect multiple devices on a single network. Hubs operate at the physical layer of the OSI model, functioning as simple connection points. They receive data packets from one device and broadcast them to all other connected devices. This made 3Com hubs an economical solution for small networks and home offices, enabling seamless communication but limiting bandwidth efficiency due to collisions in a shared network environment.

In contrast, 3Com switches brought significant advancements to networking technology. Operating at the data link layer, switches intelligently analyze incoming traffic and direct data packets only to the intended recipient. This feature reduces network collisions and enhances overall performance, particularly in larger networks. 3Com switches were designed for scalability, accommodating growing business needs while improving traffic management and bandwidth efficiency.

Another key technology associated with 3Com was their implementation of Virtual LANs (VLANs). VLANs allow network administrators to segment networks into smaller, isolated groups, even when devices are geographically dispersed. This enhances security and performance by controlling broadcast traffic and ensuring sensitive data remains separate.

3Com also prioritized ease of management with features like Simple Network Management Protocol (SNMP) for monitoring devices and traffic. Additionally, their products supported Power over Ethernet (PoE), simplifying installations by delivering power through Ethernet cables to devices like IP phones and security cameras, thus eliminating the need for separate power sources.

With robust build quality, 3Com hubs and switches ensured reliability in demanding environments. They offered a range of products catering to various needs, from small businesses to large enterprises. Though newer technologies have emerged since, the legacy of 3Com hubs and switches remains influential in the development of networking infrastructure, laying groundwork for today’s more advanced systems.