Description

TTL to RS485 Module DC 3.3V-5.5V UART Level Serial Port to RS485 Converter Function Module Conversion Power Supply Module

Product Description

This product is a TTL to RS485 module. It adopts an industrial-grade design and fully considers the lightning protection design and anti-interference design of the 485 bus. In the long-distance transmission in the field, connecting the "ground" end of the module to the ground can play a very good role. The function of anti-interference and lightning protection makes the 485 bus safer; it can not be connected to the ground during short-distance transmission indoors.

Product Features

Input voltage: DC3.3V-5.5V

Baud rate: support 110~128000bps

3.3V compatible with 5.0V signal

Operating temperature: -40°C to +85°C with RXD, TXD signal indicators

It adopts standard 2.54mm pitch design, which is convenient for secondary development, supports multi-computer communication, and allows to be connected to the bus of up to 128 devices and supports hot swapping.

Large area of copper to prevent signal interference

It has a 120 ohm matching resistance, and the matching resistance can be enabled by short-circuiting RO. It is recommended to short-circuit the long-distance transmission.