The SOHARD SH ARC-ISA-KR A20040010 is an ARCNET interface card designed for the ISA bus, part of SOHARD’s SH ARC-ISA family. It provides two selectable ARCNET interfaces: a coaxial ARCNET connection via a BNC socket and a RS-485/EIA-485 connection via a D-sub (DE-9) connector, with only one interface active at a time. This ISA 16‑bit card enables legacy ARCNET networks or RS-485 links and is available through SOHARD’s online shop as SH ARC-ISA-KR, confirming its model and connector configuration.
