Specifications

GND

UART to RS-232 Converter

Many industrial control systems, PLC’s and data loggers

have RS-232 communication ports. Because UART serial

communication closely matches RS-232, signal conversion

is possible.

Since the dawn of time, humanity has used the MAX-232

level shifter to convert UART to RS-232. Today there are

many different versions of the classic MAX-232. This

version has been designed as a simple to use drop-in

component that gets the job done without much thinking.

This device converts the

UART data from an EZO sensor to RS-232

UART to RS232

UART RS232

GND GND

GND

PLC

UART to RS232

UART RS232

GND GND

Operating principle

Wiring diagram

TX = Transmit

RX= Receive

Start Bit

+5V

0 0 0 0 0 0 011 1 1 1 1 1 1 100

Stop Bit

UART

+6V

-6V

RS232

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