The module and method for detecting the existence of the electronic payment terminal on the host base and the corresponding host base

摘要

The technology provides an electronic payment terminal presence detection module (1) d including a connector (2)The connector base (2) includes at least one serial transmission pin (TX) for transmitting signals of the electronic payment terminal to the connector base. According to the technology of the invention, the presence detection module (1) includes at least one presence signal module (11) from the electronic payment terminal to the host base according to the voltage on the serial transmission shaft.