Pulse to RS232 board.
The CH-123 is an RS232 interface module for most models of coin acceptor products. The CH-232 has a built-in true RS232 port on its uplink communication port to interface with the serial port on a PC and a downlink port with inhibit line to interface with validators.
This interface is a three wire interface using a Transmit line (TXD), a receive line (RXD) and a
Common line. The Host machine is thought of as being the Master device. The CH-232 is the
slave device that responds only to the polls (or requests) from the Master.
In this polled system, the Master requests information from the CH-232 at a periodic rate. This
rate can be as fast as every 30 milliseconds .
Baud Rate: - 9600
Duplex: - Half Duplex
Character Format: 1 start and 1 stop bit,,8 data bits
Pulse chain, Pulse Mode
CH-232 has a pulse counter that can hold up to 261 pulses. Each pulse received from the
acceptor is treated as an individual event. Thus, in another word, if a $20 dollar bill is accepted
by a bill acceptor, 20 individual credits will be reported by the CH-232 in 20 consecutive
events in its uplink communication. If the number of pulses is larger than 261, and the system is
not polling fast enough to clear the stack, a stack overflow situation will occur. In such a case,
the CH-232 will output the inhibit to Lock the coin se