How to connect "yr616" coin acceptor to raspberry pi?

Question

Electronics

I'm trying to connect and send a signal from the coin acceptor in NC mode * I connected to 23 pin with the "COIN" wire, I
wrote this code, it always displays "0" what other wires do I need to connect to the raspberry? Or is it possible to connect the ground through a resistor to the same wire ("COIN")? a little confused.

import RPi.GPIO as GPIO

 GPIO.setmode(GPIO.BCM)
 GPIO.setup(23, GPIO.IN)

 while True:
    print(GPIO.input(23))

(*NC mode is normally open. By default, there is a “high level” on the COIN output pin. When a coin passes, a single negative pulse is generated.)