Product Overview

The AN-520BT is a 16-bit ISA bus ARCNET network card produced by Danpex, supporting LAN communication over coaxial (coax) and twisted-pair cables. It can operate in both star and bus topologies, making it suitable for industrial control systems, legacy automation systems, and maintenance of existing networks.

In the context of Industry 4.0, smart manufacturing, and Industrial IoT (IIoT), the AN-520BT provides stable data acquisition and remote monitoring for legacy control systems, ensuring reliable operation of critical equipment.

Key Technical Specifications

Features and Industrial Applications

The AN-520BT supports coaxial and twisted-pair cabling, and can operate in star or bus topology, providing flexible deployment for legacy systems. Its 16-bit ISA bus design ensures compatibility with older PCs and industrial PCs. The on-board Boot ROM and 8 KB buffer RAM support network boot and embedded system configuration, while the Activity LED provides visual network status for field diagnostics. With support for up to 255 nodes and long-distance transmission (coax ~610 m, twisted pair ~122 m), it delivers stable and reliable communication.

In Industry 4.0, smart manufacturing, and IIoT scenarios, the AN-520BT acts as a bridge between legacy control systems and modern gateways, enabling data collection and remote monitoring for existing systems. It extends the lifecycle of production line equipment, ensures low-speed deterministic communication, and enhances industrial control system security and edge data processing, making it ideal for industrial automation, embedded systems, and legacy network maintenance.

Installation Recommendations

• Install in a host supporting the ISA bus and configure IRQ settings correctly.

• Select appropriate jumper/DIP switch settings and interfaces according to cabling and topology.

• Properly terminate coaxial cables; twisted-pair cabling should not exceed ~122 m.

• Use a gateway or protocol converter to connect with modern Ethernet networks for data acquisition and remote monitoring.

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Summary

The AN-520BT is a reliable and highly compatible ARCNET network card, still valuable in industrial automation, embedded systems, and legacy networks. It provides stable, deterministic communication and serves as a bridge for integrating legacy equipment into modern Industry 4.0 and smart manufacturing environments.

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