# FT232RNL USB TO RS232/485/422/TTL Converter

**Type:** Product page · **SKU:** WS-23996 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/ft232rnl-usb-to-rs232485422ttl-converter.html ([markdown](https://core-electronics.com.au/ft232rnl-usb-to-rs232485422ttl-converter.html.md))

FT232RNL USB TO RS232/485/422/TTL Interface Converter, Industrial Isolation

## Pricing

- **Price:** $43.85 (inc GST) — $39.86 AUD, exc GST
- **Quantity discounts:** 10+ $38.27 (exc GST) · 25+ $37.07 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 17 today, and up to 300 more in 12–19 days.

## Description

This device offers versatile connectivity options with USB to RS232, RS485, RS422, and TTL interfaces. It has built-in power supply isolation to maintain a stable voltage and includes a transient voltage suppressor to handle electrical surges. Additionally, it features a self-recovery fuse and protection diodes for reliable current and voltage output, safeguarding against over-current and over-voltage. The transceiver circuit works automatically without delay, ensuring fast and stable USB communication across different interfaces. A switch allows easy configuration of the onboard TTL serial voltage translator between 3.3V and 5V.

## Specifications

- Product Type: Industrial grade digital isolated converter
- USB: 
    - Operating Voltage: 5V
    - Connector: USB-B
    - Protection: 200mA self-recovery fuse, isolated output
- RS232: 
    - Connector: DB9 male
    - Protection: TVS diode, surge protection, and ESD protection
    - Transmission Mode: Point-to-point
    - Baud Rate: 300bps ~ 921600bps
- RS485/422: 
    - Connector: Screw terminal
    - Direction Control: Hardware automatic control
    - Protection: 600W lightning-proof and surge-suppress, 15KV ESD protection with reserved two 120R balancing resistors, enabled/disabled via jumper
    - Transmission Mode: Point-to-multipoints (485 mode: up to 32 nodes, use repeaters for 16 nodes or more; 422 mode: up to 256 nodes, use repeaters for 16 nodes or more)
    - Baud Rate: 300bps ~ 2Mbps
- TTL (UART): 
    - Operating Voltage: 3.3V / 5V
    - Connector: Screw terminal
    - Pins: TXD, RXD, GND, 5V/3.3V
    - Protection: Clamp protection diode, over-voltage/negative-voltage proof, shock proof
    - Transmission Mode: Point-to-point
    - Baud Rate: 300bps ~ 2Mbps
- Indicators: 
    - PWR: Red power indicator lights up with USB connection and voltage detection
    - TXD: TX indicator lights up when the USB port sends data
    - RXD: RX indicator lights up when the device ports send data back
- Operating Environment: 
    - Temperature: -40°C ~ 85°C
    - Humidity: 5%RH ~ 95%RH
- Operating System Compatibility: Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7
 
## Pinout

# ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS232-485-422-TTL-details-17_42531fa103a.jpg) ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS232-485-422-TTL-details-19_171028d253a.jpg) 

## Dimensions

## ![](https://core-electronics.com.au/attachments/localcontent/USB-TO-RS232-485-422-TTL-details-size_225128fb783.jpg)

## Documents

- Wiki
 
## Shipping List

- 1 x USB TO RS232/485/422/TTL
- 1 x Rail-mount buckle
- 1 x USB type A to type B cable ~1.2m
- 1 x Screwdriver

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE09579-1.jpg)