IBM 92F4520 1 x Port DB-9 16/4 Token Ring Micro Channel Network Adapter

Product Description

The IBM 92F4520 is a network interface card specifically designed for IBM systems that utilize the MicroChannel architecture (MCA). This adapter facilitates connection to Token Ring networks, a networking technology that was widely adopted in enterprise environments for its reliability and deterministic access method. The card is equipped with a single DB-9 connector, which serves as the physical interface for the Token Ring cable, and it supports the standard 16 Mbps and 4 Mbps data transfer rates characteristic of Token Ring technology. This adapter is crucial for enabling IBM computers, such as those in the PS/2 series, to participate in a Token Ring LAN. The MicroChannel bus provided a more advanced and proprietary expansion slot compared to the contemporary ISA bus, and the 92F4520 is engineered to integrate seamlessly into these MCA slots. Its purpose is to provide the necessary hardware layer for network communication within the specific constraints and capabilities of the IBM MCA platform. As a legacy component, the IBM 92F4520 represents a vital piece of hardware for maintaining or establishing network connectivity in older IBM environments that relied on Token Ring. It ensures that these systems can communicate effectively within the network, supporting business operations that depended on the stability and performance offered by Token Ring LANs during their operational lifespan.