System maintenance. According to official website of Datong University, Datong University's resource access control system is temporarily inaccessible because the system is being maintained, and can be accessed again after a while. Shanxi Datong University, referred to as "Datong University" or "Datong University", is located in the historical and cultural city of Datong. It is a multidisciplinary university in Shanxi Province, and the first batch of pilot universities of "Excellent Doctoral Education and Training Program" in China.