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IBM 2619-9406 16/4 Token-Ring Network Adapter
- Connects computers to a Token-Ring network.
- Supports 16 Mbps and 4 Mbps data transfer rates.
- Utilizes the Token-Ring networking protocol.
- Provides a reliable network connection for legacy systems.
- Designed for installation in desktop computers.
- Ensures compatibility with existing Token-Ring infrastructure.
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Product Overview
The IBM 2619-9406 is a 16/4 Token-Ring Network Adapter, designed to connect computers to a Token-Ring local area network. This adapter facilitates data communication within networks that utilize the Token-Ring protocol, which was a popular networking standard in the past. It provides the necessary hardware interface for a computer to participate in such a network.
Technical Information
| Part Number | 2619-9406 |
| Product Type | Network Adapter |
| Network Technology | Token-Ring |
Additional Specifications
| Data Transfer Rate | 16/4 Mbps |
| Interface | ISA Bus (typical for this era) |
Product Description
The IBM 2619-9406 is a network interface card (NIC) specifically engineered for connectivity within Token-Ring networks. Token-Ring, a LAN technology developed by IBM, operates by passing a special frame, known as a token, from one node to the next in a logical ring. A station can only transmit data when it possesses the token, which prevents data collisions and ensures deterministic access to the network. This adapter allows a computer system to participate in this token-passing mechanism, enabling it to send and receive data packets according to the Token-Ring protocol. This particular adapter supports dual data rates, offering both 16 Mbps and 4 Mbps operation. This flexibility allowed organizations to deploy the adapters in networks that might have had a mix of speeds or to upgrade their network infrastructure incrementally. The 16 Mbps speed provided a significant performance improvement over the earlier 4 Mbps standard, making it suitable for more demanding applications of its time. The adapter would typically connect to the network via a shielded twisted-pair (STP) cable using an IBM Data Connector (IDC) or similar connector, depending on the specific implementation. Designed for installation in desktop computers, the IBM 2619-9406 would occupy an expansion slot, commonly an ISA (Industry Standard Architecture) slot, which was prevalent during the era when Token-Ring was widely adopted. Its purpose was to provide a robust and reliable means for workstations and servers to communicate within an enterprise environment. While Token-Ring has largely been superseded by Ethernet technology, adapters like the 2619-9406 were critical components in many corporate networks for years, supporting essential business operations.