GB/T 20339-2006 in English

《GB/T 20339-2006农业拖拉机和机械 固定在拖拉机上的传感器联接装置 技术规范》由TC201（全国农业机械标准化技术委员会）归口，主管部门为中国机械工业联合会。
本标准适用于没有装备数字数据总线系统的低规格拖拉机用有限数据交换装置。

Scope

This standard specifies electrical connectors fixed on agricultural tractors powered by batteries with a nominal voltage of 12V and their pin layout, so that a connection interface is formed between sensors fixed on the tractor and devices that need to obtain signals from these sensors. This connector also has an interface to a low-current power supply, primarily for instrumentation. This standard provides a short-term solution for the exchange of data between a limited series of tractor-mounted sensors and other devices on agricultural tractors and associated machinery, such as monitors, actuators and control systems, in anticipation of a standard digital data bus system is applied. This standard applies to limited data exchange devices for low specification tractors that are not equipped with a digital data bus system.