Characteristic of coin selector
1. We can change the SET anytime,and increase different coins and quantity.
2. While using 2 types of the same currency,2 kinds of mixed sets,a single pulse.
3. If user input inappropriate coin or fake coin,the coin selector can be auto-training
for User replenish the coin request.
4. The function of "control disable" can be set according to requirements.
5. Function of "RS232".