USB to RS485 converter Adapter can be used in: The data can be transmitted through this USB to RS485 converter from the devices that have USB protocol. The receiver compares the voltage difference between both lines. The RS485 signals can be transmitted over a positive signal line and a negative signal line. The USB to RS485 Converter module can be operated on a different signaling method of measurement rather than voltage measurement with respect to GND pin. Pin Description of USB to RS485 Converter Module The D+ pin is a Positive Data Line Pin whereas the D- pin is a Negative Data Line Pin. One is labeled as D+ and another one as D. The USB to RS485 module consists of a two-pin PCB Screw terminal. USB to RS485 Converter Pinout Configuration This enables the use of current limiting resistors to interface inputs to voltages in excess of operating voltage. The 74HC00D IC is a quad 2-input NAND gate having clamp diodes at its input.
The USB to RS485 Converter has 74HC00D IC, MAX485 IC, and a CH430 IC and a clock crystal without markings. USB to RS485 Converter Adapter can be supported on systems like Windows 7, Windows XP, Linux, etc.This is a fully automatic plug-and-play USB module that can be connected to a PC via the Universal Serial Bus ( USB) port and provides a USB to RS-485 protocol conversion with automatic RS-485 flow control. This industry-based module operates on a differential signaling method of measurement rather than voltage measurement with respect to GND pins. The USB to RS485 Converter Adapter Module provides an easy-to-use RS485 Interface by adding a Virtual COM Port to a PC.
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