Industrial SH-ARC66 V04.00,67782 ARCNET ISA Card

The SOHARD SH ARC-66 is a 16‑bit ARCNET ISA card designed to plug into a PC for direct connection to ARCNET networks in industrial environments, enabling real‑time control and data exchange with PLCs, sensors, and other ARCNET devices. Featuring the COM90C66 ARCNET controller (with variants cited in SOHARD literature), this card belongs to the SH ARC-ISA family and is documented as an ISA ARCNET adapter by the manufacturer. The model name SH ARC-66 V04.00,67782 indicates the version and catalog identifier for this unit, aligning with the product’s revision history. Connectivity includes both RJ-45 and BNC ARCNET ports, supporting common industrial network topologies that use coax or twisted‑pair cabling. Designed for legacy and retrofit installations, it provides a straightforward path to integrate older ARCNET‑based equipment with modern PC platforms that still rely on ISA bus expansion. Typical applications span machine control, factory automation, and any scenario requiring deterministic ARCNET communications on an older PC or embedded system, making it a practical replacement option in dedicated industrial setups where ARCNET remains in use.