Backboard device for communication of SDI (Serial Digital Interface) high-definition (HD) video processing board

The utility model provides a backboard device for communication of an SDI (Serial Digital Interface) high-definition (HD) video processing board. The backboard device is equipped with 1 to 16 socket interfaces for inserting the SDI HD video processing board; the socket interfaces are connected with corresponding pins on the board through sockets 2.45 by an inserting manner, wherein the sockets are at spacing of 2.45mm; a multi-system address distribution circuit which can be achieved through a divider resistance is also designed on the backboard to distribute address for each of a plurality of socket interfaces if any. The backboard device has the advantages that the data communication and power supply of the SDI HD video processing board are achieved by few pin definitions; meanwhile, the address acquiring circuit is also designed; therefore, the product can be simply used and maintained; the productization is uniform during product design.