BS EN 60933-3:1993 音频、视频和视听系统.互连和匹配值.第3部分:使用625行,50帧无混合信号便携式VTRs和ENG摄像机互连接口规范
Audio, video and audiovisual systems - Interconnections and matching values - Specification for interface for the interconnection of ENG cameras and portable VTRs using non-composite signals, for 625 line/50 field systems