Double-side linked chattering for DC pulling power supply system

The utility model relates to a double-side linked jump device for a DC pulling power supply system, which is used for supplying power at double sides. At least two microcomputers are used for dividing the jump device into two adjacent stations to share the same communication channel, and each device is respectively used for collecting and analyzing the on-off state signal of the station and controlling the switch trip of an adjacent station. Each device comprises a mainboard, a photoelectric isolation input board, a relay output board and an interface device of the communication channel. The mainboard comprises a microprocessor, a program memorizer and a serial communication interface. The functional boards are spliced via a bus.