![]() ![]() This article discusses various ways of applying isolation with USB. It has been difficult and costly to provide the necessary isolation for medical and industrial applications, however, so USB has been principally used for diagnostic ports and temporary connections. USB, which has come to replace RS-232 as a standard port in personal computers and their peripherals, has features that are far superior to the older serial port in nearly every respect. Its low speed and point-to-point nature were tolerated because it was universally available and well supported. Another available communication standard, RS-232, though slow, fit well into medical and industrial environments because it allowed easy implementation of the required robust isolation. These legacy standards had been inherited from the earliest mainframe computers. In the early days, personal computers were provided with serial and parallel ports as standard interfaces to the outside world. Standardization, cost, and the availability of software and development tools have made the PC very attractive as a host-processor platform for medical and industrial applications, but the safety and reliability requirements of these growing markets-especially regarding electrical isolation-are very different from the office environment that has historically driven the design of the personal computer. The personal computer (PC), currently the standard information-processing device for office and home use, communicates with most peripherals using the universal serial bus (USB). Digital Isolator Simplifies USB Isolation in Medical and Industrial Applications
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |