> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=WS-23996:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/WS-23996:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)