標準號：SIS SS IEC 625-1983
中文標準名稱：電子測量設備．可編程測量儀接口系統
英文標準名稱：Electronic measuring equipment - Interface system for programmable measuring instruments
發布日期：1983/4/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1.1.1 This standard is applicable to interface systems used to interconnect both programmable and non-programmable electronic measuring apparatus with other apparatus and accessories neces-sary to assemble instrumentation systems.1.1.2 This standard is applicable to the interface of instrumentation systems, or portions of them. in which:- the data exchanged among the interconnected apparatus is digital (as distinct from analogue);- the number of devices that may be interconnected by one contiguous bus does not exceed 15;- the total transmission path length ?ver the interconnecting cables does not exceed 20 nr,- the data r?te across the interface on any signal line does not exceed 1 megabit per second.The basic functional specifications of this standard may be used in digital interface applica-tions which require longer distances, more devices, increased noise immunity, or combinations of these. Different electrical and mechanical specifications may be required (e.g., symmetrical circuit configurations, high threshold logic, special connectors or cable configurations) for these extended applications.1.1.3 This standard may also be applicable to other instrumentation system elements such as processors, stimulus, display, or storage devices, and terminal units found useful in instrumentation systems.1.1.4 This standard applies generally to laboratory and production test environments which are both electrically quiet and restricted as to physical dimensions (distances between the system compo-nents).1.1.5 A primary focus of this standard is to set forth an interface system to interconnect self-contained apparatus to other apparatus by external means. This standard may be also applied to interconnect the internal subsections within a self-contained equipment.