1. Parameters

1) Main power supply: AC 9V (or DC *2V), 1A;

2) Main control chip: 8 high performance SCM（STC*9C*8RD+）;

3) Storage space: *2K program storage space (can use *4K)

4) Internal data storage space: *6K (can use *2K)

5) Input: two channels water level signal input (high water level, low water level);

2 channels water outlet control key-press input (water outlet 1, water outlet 2)；

2 channels water outlet pause key-press input (pause 1, pause 2);

1 four-wire system *2V power supply’s coin collector input interface;

1 three-wire system power supply’s pulse flow meter input interface;

1 standard RS**2 serial communication interface (anti-static impact of *5V), supply for setting the parameters and slot card communication;

One toggle switch, used to shift the states of ‘set’, ‘run’ , the switch on means’ run’, down means ‘set’;

6) Output signals: 6 channels relay load control output, include one channel make-water control, 2 channels out-water control, and one channel automatically wash control, one channel automatically ozone sterilize control and one channel night piece light automatically switch control; all of the control signals are supplied by the board’s power supply, do not need other wiring, the only thing you should do is to select the signal which need to be controlled when output control, via relay to do the on and off workings, to make the operate flexible, external wiring simple;

7) 6 *-sects digital tube display, separate to display the money and the corresponding water quantity;

8) 4 LED running status display lamp: red shows stop sell, green shows normal, yellow shows is making water, blue shows the water full;

9) One channel buzzer output, when coin-operated and slot card effective, the short beeps tips effective, when there is insufficient amount on the card, intermittent alarm;

*0) The controller built-in system clock can easily control the output state of the timer switch;

*1) Use photoelectric isolation and enable the external hardware watch dog and the strict high frequency filter characteristic, to make the system working stable and reliable, no freeze phenomena.

*2) Size: **0mm***4mm;

2. Specific

1) working temperature: **0~**5° C； 2) Storage temperature: **0~**0° C;

3) Humidity: 5~*5% no concreting;