IEC 62227:2008定义了权限代码，这是一组短代码形式的权限相关信息，主要用于家庭服务器系统。许可码由通用ID系统（内容ID、发行者ID、接收者ID、设备ID等）和狭义的许可码组成。

IEC 62227:2008 defines the permission code, a set of permission related information in short code form, primarily intended for home server systems. The permission code is comprised of a common ID system (content ID, issuer ID, receiver ID, device ID, etc.) and a narrowly-defined permission code.