Overview
Industrial USB TO RS485 Bidirectional Converter, Onboard original CH343G, Multi-Protection Circuits

Features At A Glance
1. Support USB to RS485 bidirectional conversion.
2. Onboard original CH343G chip, CH343G is a USB bus adapter chip, which can convert USB to a high-speed asynchronous serial port, supports automatic identification and dynamic self-adaptation of communication baud rate of 115200bps and below, and provides commonly-used MODEM contact signals to expand asynchronous serial ports for computers. It can upgrade a common serial device or MCU directly to a USB bus.
3. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic.
4. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance.
5. 3 LEDs for indicating the power and transceiver status.
6. Supports Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc.
6. Fast communication, stable and reliable, better compatibility.

Specifications
1. USB
1) Operating voltage: 5V
2) Connector: USB-A
3) Protection: 200mA self-recovery fuse, ESD protection
4) Transmission distance: about 5m
2. RS485
1) Connector: screw terminal
2) Pins: A+, B-, GND
3) Direction control: hardware automatic control
4) Protection: 600W lightningproof and surge-suppress, 15KV ESD 5) protection (onboard 120R balancing resistor)
5) Transmission distance: about 1.2km(low rate)
6) Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)

Package Content
1. USB TO RS485 (B) x1
2. USB-A male to female cable x1
3. Screwdriver x1

Development Resources
https://www.waveshare.com/wiki/USB_TO_RS485_(B)?

Brand	Waveshare
Product Dimensions	5.28 x 2.39 x 1.5 cm; 70 g
Item model number	USB to RS485 Converter B
Manufacturer	Waveshare
Series	USB TO RS485 (B) Bidirectional Converter
Colour	Black
Are Batteries Included	No
Item Weight	70 g
Guaranteed software updates until	unknown

Industrial USB to RS485 Converter Adapter with Original CH343G and SP485EEN, Built-in Lightningproof Tube, Resettable Fuse, ESD and TVS Protection Circuits, up to 1.2km RS485 Transmission Distance

Details

Description

Specifications

Common Questions