IEC 62287-1:2017+AMD1:2022规定了使用载波侦听时分多址（CSTDMA）技术的B类舰载自动识别系统（AIS）设备的最低操作和性能要求、测试方法和要求的测试结果。本文件考虑了其他相关IEC国际标准和现行国家标准（如适用）。它适用于船舶上使用的AIS设备，这些设备不受《海上人命安全公约》第五章AIS强制运输要求的限制。拟在仅接收模式下运行的AIS站不被视为B类船载移动AIS站。本版本包括与前一版本相比的以下重大技术变更:在同步方法中，增加了从内部UTC源进行同步的直接方法。

IEC 62287-1:2017+AMD1:2022 specifies the minimum operational and performance requirements, methods of testing and required test results for Class B shipborne automatic identification system (AIS) equipment using carrier-sense time division multiple access (CSTDMA) techniques. This document takes into account other associated IEC International Standards and existing national standards, as applicable. It is applicable for AIS equipment used on craft that are not covered by the mandatory carriage requirement of AIS under SOLAS Chapter V. An AIS station intended to operate in receive-only mode is not considered a Class B shipborne mobile AIS station. This edition includes the following significant technical change with respect to the previous edition: in the synchronisation method, addition of a direct method for synchronisation from an internal UTC source.