ISO 14819-6:2006
交通和旅客信息(TTI).经过交通电文编码的TTI信息.第6部分:无线电数据系统的加密和条件存取.交通文电频道ALERT C编码
Traffic and Traveller Information (TTI) - TTI messages via traffic message coding - Part 6: Encryption and conditional access for the Radio Data System - Traffic Message Channel ALERT C coding