本文件已被宣布为“稳定”，不再接受货币定期审查。用户负责验证参考资料和持续适用性或技术要求。新技术可能存在。本文件旨在详细解释AS4074线性令牌传递总线（LTPB）特性和功能背后的原理。讨论还讨论了系统设计者在使用该总线设计系统时应考虑的因素。 其他信息可在这些相关文件中找到:AIR 4271-系统数据通信手册和AS 4290-AS 4074的验证测试工厂。

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This document is intended to explain, in detail, the rationale behind the features and functions of the AS4074, Linear, Token-passing, Bus (LTPB). The discussions also address the considerations which a system designer should take into account when designing a system using this bus. Other information can be found in these related documents: AIR 4271 - Handbook of System Data Communication and AS 4290 - Validation Test Plant for AS 4074.