3Com 3C16722A, 3C16721A, 3C16723A Connecting Workstations and Other Equipment to Your Hub, Example

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Connecting Workstations and Other Equipment to Your Hub

WARNING: Please read the ‘Important Safety Information’ section before you start.

WARNHINWEIS: Bitte lesen Sie den Abschnitt ‘Wichtige Sicherheitsinformationen’ sorgfältig durch, bevor Sie das Gerät einschalten.

AVERTISSEMENT: Veuillez lire attentivement la section “Consignes importantes de sécurité” avant de mettre en route.

CAUTION: Do not power the hub off and on quickly. Wait about five seconds between power cycles.

Connecting workstations and other equipment to your hub is easy. Connect them using 100BASE-TX cables to any of the hub’s 100BASE-TX RJ-45 ports. To connect a 100BASE-TX cable, simply slot the connector into the

Connecting OfficeConnect Hubs Together

You can increase the number of workstations that can connect to your network by adding another OfficeConnect hub.

You can directly connect together a maximum of two Fast Ethernet hubs. The total length of cable (A + B + C below) between two workstations, or between a workstation and a non-repeater piece of equipment (such as a switch), must not exceed 205m (672ft). Each cable (A, B or C) must not exceed 100m (328ft).

3Com recommends that the cable (B) between the Fast Ethernet hubs is no longer than 5m (16.4ft). This allows the maximum hub to workstation cable length (A or C) of 100m (328ft) to be used, as in Figure 3.

Figure 3 Configuration Rules and Example of a Fast Ethernet

Network

relevant RJ-45 port. When the connector is fully in, its latch locks it into place. To disconnect the cable, push the

Switch A

B

C

connector’s latch in and remove it.

The hub detects all port connections, so you can start using your network immediately. When you need more ports, simply add more OfficeConnect hubs.

If you are using the highest-number port (port 4 on Hub 4, port 8 on Hub 8, port 12 on Hub 12) to connect a workstation, ensure the Uplink/Normal switch is set to Normal (out).

Workstation

Example:

Hub

100m (328ft)

100m

(328ft)

Hub

Workstation

5m (16.4ft)

100m (328ft)

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Contents OfficeConnect Fast Ethernet Hub 4, Hub 8, Hub 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Introduction Creating Your Network Page Introduction Fast Ethernet Hub 4 and Hub 8-Front Creating Your NetworkFast Ethernet Hub 4 and Hub 8-Rear Power adapter socket100BASE-TX RJ-45 ports Fast Ethernet Hub 12-Front Alert LED Power LED Collision LEDFast Ethernet Hub 12-Rear Uplink/Normal switchWorkstation Connections Before You StartHub Connections Rubber Feet Stacking the Units TogetherStacking Clip Securing Your Hub Positioning Your OfficeConnect HubConnecting OfficeConnect Hubs Together Connecting Workstations and Other Equipment to Your HubExample Connecting to 10BASE-T Networks Connecting 100BASE-TX HubsChecking Hub Connections Spot ChecksProblem Solving Straight-through Cable/Crossover Cable Networking Terminology Dimensions and Operating Conditions Dimensions and StandardsOfficeConnect Fast Ethernet Hub EMC StandardsEnd Of Life Statement Environmental StatementsRegulated Materials Statement Environmental Statement about the DocumentationImportant Safety Information Wichtige Sicherheitshinweise Consignes Importantes DE Sécurité 3Com Knowledgebase Web Services Online Technical ServicesTechnical Support World Wide Web SiteSupport from 3Com Support from Your Network SupplierEurope Country Telephone Number Asia, Pacific RimEurope, South Africa, and Middle East North America Country Telephone Number Latin AmericaCountry Telephone Number Fax Number Returning Products for Repair3Com Corporation Limited Warranty Warranties Exclusive Disclaimer Electromagnetic Compatibility Page Page Page Part No. DUA 1672-1AAA03 Published June

3C16723A, 3C16721A, 3C16722A specifications

The 3Com 3C16722A, 3C16721A, and 3C16723A are part of a series of networking devices designed to enhance network performance, reliability, and management capabilities in various environments. These devices are primarily used in enterprise networks, catering to different sizes and types of network infrastructures.

The 3C16722A is a high-performance Ethernet switch featuring 24 ports that support 10/100/1000 Mbps speeds. Its main features include auto-MDI/MDI-X capabilities, which automatically detect connections and configure the ports accordingly, facilitating seamless integration. This switch supports VLAN (Virtual Local Area Network) functionality, enabling network segmentation and improved security. With robust forwarding capabilities, the 3C16722A ensures efficient data transfer within a network, making it ideal for organizations that require high bandwidth for data-intensive applications.

The 3C16721A, while similar to the 3C16722A, is designed for users who require fewer ports but still demand high-speed connectivity. Offering 16 ports, the 3C16721A also operates at 10/100/1000 Mbps and incorporates advanced features such as Quality of Service (QoS) settings. QoS prioritizes critical network traffic, ensuring that voice and video data are transmitted with minimal latency, which is essential for businesses that depend on real-time communication tools.

Lastly, the 3C16723A combines the functionalities of both its counterparts but extends the port offerings to cater to larger networks. Featuring 48 ports, this switch can support multiple devices simultaneously, providing extensive connectivity options. Additionally, it offers stacking support, allowing multiple switches to operate as a single unit. This capability enables network administrators to manage larger systems more efficiently and simplifies the overall network architecture.

Each of these devices utilizes advanced technologies such as Spanning Tree Protocol (STP) for loop prevention and link aggregation to enhance throughput by combining multiple connections. Security features, including port security and access control lists, are also integrated to protect sensitive data and maintain network integrity. Overall, the 3Com 3C16722A, 3C16721A, and 3C16723A are versatile networking solutions that deliver performance, scalability, and security for modern enterprise networks.