本标准是对ETSI ETS 300 174标准国内国际接口的北美改编，用于以45 mbit/s的比特率对数字分量电视信号进行编码和传输。本标准详细描述了在设计用于终止数字传输系统的设备中实施的数字编码算法携带ITU-R 601-2数字电视视频信号、AES/EBU数字音频信号和辅助信号，如SMPTE时间码和SMPTE机器控制。每个电视信号的格式都与北美DS兼容- 3.交通网络。视频编码算法基于混合预测/变换方案，包括可变字长编码（VLC）、同步和视频帧的安排。所列经费用于传输伴随视频的音频和图文电视服务，以及有条件接收的加扰应用。以前称为T1。802.01-2001（R2006）。

This standard is the North American adaptation for Domestic-International interfaces of the ETSI ETS 300 174 standard for the coding and transmission of digital component television signal at a bit rate of 45 mbit/s. It provides a detailed description of the digital coding algorithm to be implemented in equipment designed to terminate digital transmission systems when those systems are employed to carry ITU-R 601-2 digital television video signals, AES/EBU digital audio signals and ancillary signals such as SMPTE time-code, and SMPTE machine control. Each television signal is formatted to be compatible with the North American DS-3 transport network. The video coding algorithms are based on a hybrid predictive/transform scheme incorporating arrangements for variable word- length coding (VLC), synchronization, and video framing. Provision is made for the transmission of audio and teletext services to accompany the video and for the application of scrambling for conditional access. Formerly known as T1.802.01-2001(R2006).