Jl5 series connectors are made according to ministry of railway standard TB/T2761 and MIL-C-5015G. The socket is covered with guided stainless sleeve and allows the connector to have the advantages of low contact resistance, long endurance, etc.

The connection type between the plug and the receptacle is bayonet coupling with quick mating and easy use. They are widely used for the connection of electrical equipment of rail train. The plug or the receptacle may be mounted with both pins and sockets.