Pulse type Coin acceptor to PC interface WF-700USB ( WF-700USB / WF-700RELAY )

• -- One pulse type coin acceptor input
• -- One relay output switch,that is used to inhibit the coin acceptor (Power off)
• -- RS232 output to Computer (USB port is also a virtual RS232 port)

The WF-700USB / WF-700B is an RS232 (USB) interface module for most pulse type coin acceptor or bill acceptors. The WF-700USB has a built-in USB to RS232 port on its uplink communication port to interface with the serial port on a PC and a downlink port with inhibit line or inhibit relay to interface with validators. With the WF-700USB, the end operator can treat all different kinds of pulse interface validators as a standard RS232 device and can concentrate on the real operation of the validator rather than the tedious interface work of the hardware discrepancy.

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 WF-700USB 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 WF-700USB at a periodic rate. This rate can be as fast as every 30 milliseconds or as slow as the elapse time defined by the Lockout Timer. Faster rates are more desirable since overall system performance (in terms of bills/coins per minute accepted) will be higher at high poll rate system.
WF-700USB has a “Lockout” Timer feature that it will disable the acceptor if the specified poll rate is not met. In another words, if the host system is too busy to keep up with the desired minimum poll rate, WF-700USB will put the acceptor into the Disabled mode. The acceptor will be enabled again once the communication resumes.

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