The 5th High School of Shiyan located in Shiyan, Hubei province. In order to better planning and development of commuication between the training resources, Rongtong use Cat6 unshielded products, which meets transmission platform of their current system. Cat6 series can connect the voice, data, graphics, images, multimedia communication equipments, information exchange equipments and auto- management equipments, also connect the internal network equipments and external communication network