Maintainability Design of Airborne Dual-redundant Data Bus of 1553B

The topology and and connection relationship among of fundamental physical composition of airborne dual -redundant data bus of 1553B is introduced,Work states and method of line test of it are analyzed,the testability of no divisable connection is given at the point of view of fault location and maintainability,and the design method of divisable connection is provided,it is compared the characteristics and the impact on maintenance and repair between two interface types of dual-redundant bus.