This standard is equivalent to international standards IEC455 (1988) "equipment terminals and conductor wire ends specific identification and application of an alphanumeric system General." This standard specifies the subject matter of a variety of methods to identify electrical equipment (hereinafter referred to as the device) terminal, and developed a system of alphanumeric identification device terminals and specific wire line side of General. This standard applies to the identification mark of terminals combination of devices (such as resistors, fuses, relays, contactors, transformers, rotary motors, etc.) and these devices, but also to identify specific wire line side. When necessary, the General gives detailed application of certain products and the necessary support recognition in the relevant standard. Graphical symbols GB5465 references Graphical symbols for electrical equipment market for the connector miniaturization trend of centralization and the need for standard GB 4728 electrical diagrams, prompting terminals technological innovation. Semiconductor chip technology is becoming the driving force interconnect technology at all levels of development of the connector, such as a terminal line of high quality, with 0.5mm pitch to 0.25mm pitch chip package rapid development, so I level interconnect (IC device internal) and Ⅱ level interoperability Even (interconnect devices and board) of the device pin count by hundreds of thousands of wire lines. In the cylindrical slotted jack, flexible wire pins and double curved wire spring socket connector commonly used in press fit contact technology, greatly improving the reliability of the connector to ensure the fidelity of signal transmission. The connector terminals technology constitutes a new connector products, namely push-in connector, which is mainly used for system-level interconnect terminal wire of choice, its biggest advantage is no cable, installation and removal simple terminal line brand, easy on-site replacement, and mating fast, smooth and stable separation, get a good high-frequency characteristics for spacecraft. Connector assembly technologies are surface mount technology developed by the plug-in installation technology, and the future trend is towards the development of micro-assembly techniques, the use of micro-electromechanical systems will increase the connector technology and cost-effective power. The preferred terminal lines, cable, Xu Song Chong electronic products factory by Dongguan Shijie Song Chong-wook electronic products factory provided. Dongguan Shijie Song Chong-wook Electronic Products Factory (chuangxs.1688.com) strong, credible, connectors, and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chong Xu Song electronic products factory and you work into the brilliant, for a better future!