Tripping press plate capable of expanding connection loop and information transmission circuit

The invention relates to a tripping press plate capable of expanding a connection loop and an information transmission circuit. The press plate comprises four wiring terminals, wherein one pair of terminals is connected with control loops; and one pair of terminals is connected with signal loops, so that the target of completely isolating two groups of loops is achieved. When protective tripping press plates are input, a connecting plate is located in a tripping control loop, so that achievement of outlet tripping is ensured. The protective tripping press plates are connected to the signal loops when output, and each tripping press plate can transmit state information to a dispatcher as one path of remote signal when output, so that the disadvantage that input or output information cannot be uploaded when a traditional tripping press plate is connected to the control loops is overcome; the input or output state of the press plate is directly transmitted to a dispatching terminal through the signal loops; unre