Field tactical waterproof connector is also named YG telianthus connector. It was early designed by China Fiber& Electric Research Institute, and used for military field telecommunication wirings, normally it's used with field tactical cable reels. There's no plug or socket, male or female. Two connectors can be connected directly(without adapter) with pins and threads, the connection is very stable and can stand large impulse and tension. The grade is IP65. With fiber optic telecommunication is spread widely, such military connectors are generally used in civil fields, like instant connections, stage wirings, live broadcasts, emergency repairs of telecommunications and so on.