本文件规定了用于实现ISO/IEC 18092、ISO/IEC 14443或ISO/IEC 15693系列的设备的通信模式选择和切换机制，其设计不干扰13,56 MHz下的任何正在进行的通信。通信模式在各自的国际标准中有规定，不在本文件的范围内。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the communication mode selection and switching mechanism, designed not to disturb any ongoing communication at 13,56 MHz, for devices implementing ISO/IEC 18092, the ISO/IEC 14443 or ISO/IEC 15693 series. The communication modes are specified in the respective International Standards and are outside of the scope of this document.All current amendments available at time of purchase are included with the purchase of this document.