The invention provides a controlling and remote metering circuit applied to a cubic
satellite separation device. The circuit comprises a working circuit, a
backup circuit and an interface circuit. Thefront end of the interface circuit is connected with a
rocket controlling and remote metering cable, and the rear end of the interface circuit is connected with the working circuit and the
backup circuit. The interface circuit comprises a first connector COM1, a first reed
pipe K1 and a second reed
pipe K2, wherein the first reed
pipe K1 and the second reed pipe K2 are connected with the first connector COM1. The first connector COM1 comprises a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin, an eighth pin and a ninth pin, wherein the second pin and the seventh pin are connected with the two ends of the first reed pipe K1 separately, the first pin and the sixth pin are connected with the two ends of the second reed pipe K2 separately, the fourth pin and the fifth pin are connected with the working circuit, and the eighth pin and the ninth pin are connected with the
backup circuit. Dual-backup design is adopted for a
control circuit and a remote metering circuit, any path of work can guarantee that a
satellite normally pops up and a correct remote metering
signal is transmitted to a
rocket, and compared with other
satellite separation schemes, high reliability is achieved.