B&B Electronics DSC-200 300IND Card

The DSC-200/300IND Card is a two-channel RS-422/RS-485 asynchronous PCI bus adapter designed to drop into a PCI slot on IBM-compatible PCs. Marketed under B&B Electronics’ Quatech division, the DSC-200/300IND is the industrial-option variant of the DSC-200/300 family. It provides two independent serial interfaces, each selectable for RS-422 or RS-485 signaling, enabling reliable point-to-point or multi-drop serial networks. The card uses a standard PCI interface, presenting two ports to the host PC for asynchronous data transfer. With the PCI plug-in form factor, it fits in a conventional desktop or workstation system, expanding its serial capabilities to support data acquisition, instrumentation, or automation workflows that rely on parallel RS‑422/RS‑485 connections. The DSC-200/300IND is part of the broader DSC-200/300 product family, which includes dual-port PCI serial cards intended for professionals needing two-port serial communication on a single PCI card.