General analog input signal module circuit that works a telephone switchboard

The utility model discloses a general analog input signal module circuit that works a telephone switchboard, including the wiring board, be provided with short circuit jack unit on the wiring board, arrange on the short circuit jack unit and to insert short circuit insurance jack I, II, III, IV, V, VI, the VII that square fuse and the square fuse of accessible switched on each other, binding postA is connected with short circuit insurance jack IV electricity, binding post B and electric connection of short circuit insurance jack VI, short circuit insurance jack V connects the electricity with24V voltage and is connected, and 0V voltage connects to be connected with COM joint and short circuit insurance jack II electricity respectively, and analog output is just connecting and is being connected with short circuit insurance jack III electricity, and the insurable jack I of short circuit, short circuit insurance jack VII, analog output burden connect electricity connection in proper order. The beneficial effect