ARCNET AN-520BT ARCNET ISA Adapter Card is a 16-bit ISA network interface designed to connect a PC to an ARCNET local-area network. It supports four wiring topologies—coaxial star, coaxial bus, twisted-pair star, and twisted-pair bus—providing flexible ARCNET connectivity for varying installation requirements. Marketed as a high-performance ARCNET card, the AN-520BT is a legacy ISA-based solution that was discontinued in December 2003.
