本欧洲标准规定了商业楼宇自动化，控制和楼宇管理中的网络控制系统的控制网络协议（CNP）自由拓扑双绞线通道，并与EN 14908-1:2014结合使用。该通道支持多个节点之间的78,125kbit/s的通信，每个节点由收发器，协议处理器，应用处理器，电源和应用电子器件组成。 该欧洲标准涵盖完整的物理层（OSI第1层），包括媒体访问控制（MAC）子层的接口和介质的接口。还指定了由其他层控制但控制物理层操作的参数

This European Standard specifies the control network protocol (CNP) free-topology twisted-pair channel for networked control systems in commercial Building Automation, Controls and Building Management and is used in conjunction with EN 14908-1:2014. The channel supports communication at 78,125 kbit/s between multiple nodes, each of which consists of a transceiver, a protocol processor, an application processor, a power supply, and application electronics. This European Standard covers the complete physical layer (OSI Layer 1), including the interface to the Media Access Control (MAC) sub-layer and the interface to the medium. Parameters that are controlled by other layers but control the operation of the physical layer are also specified.