ISO 11783规定了林业或农业拖拉机以及安装、半安装、牵引或自推进机具的控制和通信串行数据网络。其目的是标准化传感器、执行器、控制元件和信息存储和显示单元之间的数据传输方法和格式，无论是安装在拖拉机或机具上，还是拖拉机或机具的一部分。ISO 11783还为农业和林业设备使用的车载电子系统提供了开放式互连系统。其目的是使电子控制单元（ECU）能够相互通信，从而提供一个标准化的系统。 本文件定义并描述了网络的250 kbit/s双绞线非屏蔽四芯电缆物理层，以及基于250 kbit/s双绞线物理层（TPPL）的替代电缆和体系结构- 屏蔽双绞线电缆网络层，完全向后兼容基于四绞线的机器和设备。 注:如果没有不同规定，则要求对双绞线和TPPL均有效。

ISO 11783 specifies a serial data network for control and communications on forestry or agricultural tractors and mounted, semi-mounted, towed or self-propelled implements. Its purpose is to standardize the method and format of transfer of data between sensors, actuators, control elements, and information-storage and -display units, whether mounted on, or part of, the tractor or implement. ISO 11783 also provides an open interconnect system for on-board electronic systems used by agriculture and forestry equipment. It is intended to enable electronic control units (ECUs) to communicate with each other, providing a standardized system. This document defines and describes the network's 250 kbit/s, twisted, non-shielded, quad-cable physical layer and an alternative cable and architecture named twisted pair physical layer (TPPL) based on a 250 kbit/s, un-shielded, twisted pair cable network layer which is fully backward compatible to twisted quad based machines and devices. NOTE Where not differently specified, requirements are valid for both twisted quad and TPPL.