DIN IEC 60574-18:1991 视听、视频和电视设备及系统.第18部分:声像用自动幻灯放映机与内装双向三极管开关的连接器
Audiovisual, video and television equipment and systems; connectors for automatic slide projectors with built-in triacs for audiovisual applications; identical with IEC 60574-18:1987; german version HD 369.18 S1:1989