本文件规定了牵引车和被牵引车电子监控充电系统电气连接用7极连接器的尺寸特性、触点分配、试验和要求。电子监控系统设计用于检测12 V和24 V标称电源电压，并将电流限制在50 A，这是一个没有任何制动能力的连接器。 该电气连接用于可分离的卡车-拖车组合，以便使用电子监控充电系统将拖车的附加电池组与卡车的发电机连接。 拖车中的附加电池组主要用于尾门升降机、电动叉车或其他高电流消耗的技术设备。 本文件进一步规定了用于在插头断开时接收和存储插头的驻车插座。

This document specifies dimensional characteristics, contact allocation, tests and requirements of 7-pole connectors for electrical connections of electronically monitored charging systems of towing and towed vehicles. The electronic monitoring system is designed to detect 12 V and 24 V nominal supply voltage and to limit the current to 50 A, and this is a connector without any braking capacity. This electrical connection is intended for use with separable truck-trailer combinations in order to connect an additional battery pack of the trailer with the generator of the truck using an electronically monitored charging system. Additional battery packs in trailers are basically used with tailgate lifts, electrical forklifts or other technical equipment with high current consumption. This document further specifies a park socket used to receive and store the plug when it is disconnected.