PROBLEM TO BE SOLVED: To provide a nurse call system capable of grasping a use situation of an article that is being connected while being connected to a plate slave unit of a nurse call slave unit, in particular, a special slave unit article such as a special call switch.SOLUTION: A plate slave unit 1b includes: a terminal resistance measuring part 14 for measuring terminal resistance of an article that is connected to a connection jack 12； a terminal resistance storage part 15 for storing a terminal resistance value of a calling grip button 1a that can be connected to the connection jack 12, and for each type of the special slave unit article； and a slave unit CPU 16 by which the type of an article that is being connected is identified from the measured resistance value while referring to the terminal resistance storage part 15, and reported to a nurse call master unit 3. The nurse call master unit 3 includes: an article information storage part 36 for storing a total number of special slave unit articles for each type； and a master unit CPU 38 by which the quantity of stock is calculated on the basis of type information transmitted from the plate slave unit 1b and information in the article information storage part 36 and article management information including the calculated quantity of stock is displayed on a first display 32.SELECTED DRAWING: Figure 2
