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IBM 8242-008 8 x Ports 10Base-T RJ-45 Ethernet Hub
- 8 x 10Base-T RJ-45 Ethernet ports
- Operates as a network hub (Layer 1 device)
- Supports half-duplex communication
- Simple plug-and-play connectivity
- Suitable for small, legacy LAN environments
- LED indicators for network activity and status
- Compact desktop form factor
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Product Overview
The IBM 8242-008 is an 8-port 10Base-T Ethernet hub, a basic networking device used to connect multiple computers in a Local Area Network (LAN). It operates at the physical layer, broadcasting incoming data to all connected ports.
Technical Information
| Product Type | Ethernet Hub |
| Number of Ports | 8 x RJ-45 |
| Ethernet Standard | 10Base-T |
Additional Specifications
| Data Transfer Rate | 10 Mbps |
| Duplex Mode | Half-duplex |
| OSI Layer | Layer 1 (Physical) |
Product Description
The IBM 8242-008 is a fundamental networking component designed to facilitate basic connectivity within a small Local Area Network (LAN). As a 10Base-T Ethernet hub, it operates at the physical layer of the OSI model, meaning it simply repeats incoming electrical signals to all other connected ports. This broadcast method is characteristic of hubs, which lack the intelligence of switches to direct traffic only to the intended recipient. Consequently, all devices connected to the hub share the same bandwidth, and collisions can occur if multiple devices attempt to transmit simultaneously. This particular model features eight RJ-45 ports, each supporting the 10 Mbps speed of the 10Base-T standard. It is intended for environments where simplicity and cost-effectiveness are prioritized over high performance or advanced network management features. The hub is typically used to connect a small number of computers or other network devices in a star topology. Its plug-and-play nature makes it easy to set up, requiring no complex configuration. LED indicators on the front panel provide visual feedback on network activity, link status, and potential collisions, aiding in basic troubleshooting. The compact, desktop-friendly design makes it suitable for placement in small offices or home environments. While largely superseded by more efficient switches in modern networks, hubs like the IBM 8242-008 were foundational in the development of Ethernet LANs and may still be found in legacy systems or specific niche applications.
