Industrial USB TO 4Ch RS485 Converter, Multi Protection Circuits, Multi Systems Support, Aluminium Alloy Case

SKU: 25219
Part Number: USB TO 4CH RS485
Brand: Waveshare


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Industrial USB TO 4Ch RS485 Converter, Multi Protection Circuits, Multi Systems Support, Aluminium Alloy Case, Wall-Mount & Rail-Mount Support
Industrial USB TO 4CH RS485
Communication Module

Stable Transmission | Multi Devices | Multi Systems

Features At A Glance
  • Extending USB to 4CH RS485, allows concurrent and independent communication for each channel
  • Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
  • Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance
  • Onboard RS485 output terminal 120R resistors, enabled/disabled via DIP switch
  • Aluminium alloy case with oxidation dull-polish surface, CNC process opening, solid and durable, well-crafted
PRODUCT TYPE Industrial Grade USB to RS485 converter
Host port USB
Device port RS485
Baudrate 1200bps ~ 460800bps
USB Operating voltage 5V
Connector USB-B
Protection 500mA resettable fuse, ESD protection
Transmission distance About 5m
RS485 Connector Screw terminal
Protection 600W lightningproof and surge-suppress, 15KV ESD protection
Transmission distance Maximum communication distance is about 1200m (at a low rate, with 120R resistor turned on)
Transmission mode Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
Operating environment Temperature -40 ~ 85℃
Humidity 5%RH ~ 95%RH
Operating system Win7/8/8.1/10/11, Mac, Linux, Android

Multiple Protection, Safe And Stable

Onboard Resettable Fuse And Protection Diode, Provides Over-Current/Over-Voltage Proof, Improves Shock Proof Performance; Onboard Voltage Translator Circuit, With Surge Suppress And ESD Protection, Safe And Stable Communication

Multi system Support

Supports Win7/8/8.1/10/11, Mac, Linux, Android, etc.

Transmission distance up to 1.2km

The USB signal can be converted into 4 balanced differential RS485 signals and the transmission rate is stable. The reliable speed is 1200~460800bps, the transmission distance is about 1.2km for RS485, and about 5 meters for USB.

Wall-mount & Rail-Mount Support
Interface introduction
Indicator Introduction
PWR power indicator, lights up while the USB is connected and voltage is detected
ACT Status indicator, lights up green while the driver is detected.
RXD(1~4) Blue RXD indicators, light up when the device ports send data back
(corresponding to 4 channels respectively)
TXD(1~4) Blue TXD indicators, light up when the USB port is sending data
(corresponding to 4 channels respectively)

Pin description
PE Signal ground
A(1~4) A(1~4) differential signal A+
B(1~4) B(1~4) differential signal B-

Product Show
Resources & Services

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Weight: 0.181 kg

Quick Overview

  1. USB TO 4CH RS485 x1
  2. USB type A to type B cable ~1.2m x1