# USB to RS485/422 Isolated Converter

**Type:** Product page · **SKU:** WS-23949 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/usb-to-rs485422-isolated-converter.html ([markdown](https://core-electronics.com.au/usb-to-rs485422-isolated-converter.html.md))

USB to RS485/422 Industrial Grade Isolated Converter, Onboard Original FT232RL and SP485EEN, Multiple Protection, Wall-mount and Rail-Mount Support...

## Pricing

- **Price:** $30.80 (inc GST) — $28.00 AUD, exc GST
- **Quantity discounts:** 10+ $26.88 (exc GST) · 25+ $26.04 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 02 and Sep 09.

## Description

## Details

 USB to RS485/422 Industrial Grade Isolated Converter, Onboard Original FT232RL and SP485EEN, Multiple Protection, Wall-mount and Rail-Mount Support Adopts original FT232RNL and SP485EEN chip solution, provids stable communication with built-in galvanic isolation, lightningproof and anti-electrostatic protection and so on, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.

 | Interface | PE | TA | TB | RA | RB |
|---|---|---|---|---|---|
| RS422 | Signal Ground | Send Differential Signal Positive T+ | Send Differential Signal Negative T- | Receive Differential Signal Positive R+ | Receive Differential Signal negative R- |
| RS485 | Signal Ground | Differential signal Positive A+ | Differential Signal Negative B- | NC | NC |

 ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-3_41823cc64e8.jpg) Features At A Glance - Onboard Original FT232RL and SP485EEN chip. Fast communication, stable and reliable, better compatibility
- Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
- Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
- Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance
- Onboard 15KV ESD isolation protection and 600W lightningproof & anti-surge protection
- Onboard 120R terminal resistor on the RS485/RS422 ports, enable by default, configurable by jumper
- 3 LEDs for indicating the power and transceiver status
- Industrial rail-mount ABS case design, small in size, easy to install, and cost-effective
 
 Specifications | PRODUCT TYPE | Industrial grade isolated USB to RS485/422 converter |
|---|---|
| Baud rate | FT232RNL | 300bps ~ 3Mbps |
| Host port | USB |
| Device port | RS485/422 |
| USB | Operating voltage | 5V |
| Connector | USB-B |
| Protection | 200mA self-recovery fuse, ESD protection |
| Transmission distance | About 5m |
| RS485/422 | Connector | Screw terminal |
| Pins | A+, B-, PE (Ground) |
| Direction control | Hardware automatic control |
| Protection | 600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor) |
| Transmission distance | About 1.2km(low rate) |
| Transmission mode | Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) |
| LED indicators | PWR | Red power indicator, light up when there is USB connection and voltage is detected |
| TXD | Green TX indicator, light up when the USB port sends data |
| RXD | Blue RX indicator, light up when the device ports send data back |
| Operating environment | Temperature | -15? ~ 70? |
| Humidity | 5%RH ~ 95%RH |
| Operating system | Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 |
| Appearance | Enclosure | Rail-mount ABS case, suitable for 35mm DIN rail |
| Dimensions | 81.9 × 54.0 × 32.0mm |

 
 Onboard Original Chips Onboard original FT232RL and SP485EEN chips, providing better stability and compatibility

 ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-5_120060cb8f1.jpg) 
 Galvanic isolated Design - Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
 
 ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-7_1446240773c.jpg) Multiple Protection, Safe And Stable Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection. Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance.

 ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-9_17890b1101c.jpg) Transmission distance up to 1.2km The USB signal can be converted into a balanced differential RS485/422 signal and the transmission rate is stable. The transmission distance is about 1.2km for RS485/422, and about 5 meters for USB.

 ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-11_108083641fd.jpg) 
 Multi system Support Supports Mac, Linux, Android, WinCE, Win11/10/8.1/8/7/XP, etc.

 ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-13_70137d5375e.jpg) 
 ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-14_100830dccfc.gif) ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-15_33954b3bb3c.jpg) 
 Wall-mount And Rail-Mount Support ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-19_15363b79313.jpg) 
 Product Show ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-21_13456b1605f.jpg) 
 Outline dimensions ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-details-size_1334327e67f.jpg) Resources & Services ![](https://core-electronics.com.au/attachments/localcontent/res_banner_1438783d841.png) ![](https://core-electronics.com.au/attachments/localcontent/res_content_195318a7bdf.png) **WIKI:** www.waveshare.com/wiki/USB\_TO\_RS485/422 \* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

**Weight:** 0.104 kg

## Quick Overview

1. USB TO RS485/422 x1
2. USB-A male to USB-B male cable ~1.2m x1
3. Screwdriver x1
 
 1![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS485-422-1_220_2366468c5a2.jpg) 2[![](https://core-electronics.com.au/attachments/localcontent/USB-Type-B-Cable_93_17749a55f1c.jpg)](https://core-electronics.com.au/attachments/localcontent/USB-Type-B-Cable_163038672d3.jpg) 3![](https://core-electronics.com.au/attachments/localcontent/screwdriver-icon_93_20743a4163f.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE09542-1.jpg)