> **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

# Industrial Isolated USB To 4-Ch RS232 Converter

**Type:** Product page · **SKU:** WS-26854 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/industrial-isolated-usb-to-4-ch-rs232-converter-usb-to-serial-adapter-original-ft4232hl-chip-mac-linux-android-windows-multi-os-compatible.html ([markdown](https://core-electronics.com.au/industrial-isolated-usb-to-4-ch-rs232-converter-usb-to-serial-adapter-original-ft4232hl-chip-mac-linux-android-windows-multi-os-compatible.html.md))

Industrial Isolated USB To 4-Ch RS485 Converter (B), CH344L Chip, Multi Protection Circuits, Multi Systems Support, Aluminium Alloy Case, Wall-Mount &...

## Pricing

- **Price:** $56.25 (inc GST) — $51.14 AUD, exc GST
- **Quantity discounts:** 6+ $49.09 (exc GST) · 12+ $47.55 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 24 and Aug 31.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=WS-26854:1` (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-26854:1.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 has a USB connection to the host computer, which then provides 4 seperate COM Ports (one for each RS232 connection).

IUt is based on the original FT4232HL chip, ensuring fast and stable communication with excellent compatibility. It supports USB connections to four isolated RS232 channels, ideal for integrating multiple industrial serial devices. The design includes power supply isolation for stable voltage and digital isolation to ensure reliable signal transmission with strong interference resistance and low power consumption. An onboard Transient Voltage Suppressor provides protection against voltage surges and spikes, including lightning and ESD protection. A self-recovery fuse and protection diodes help maintain stable current and voltage, offering protection against over-current and over-voltage conditions. The power supply can be input through a screw terminal, accommodating a wide range from 5V to 36V DC. The device also includes nine LEDs that indicate power and transceiver status, all housed in a robust aluminum alloy enclosure with a sandblasted and anodized finish.

## Specifications

- Product Type: Industrial USB to RS232 isolated converter
- Host Port: USB
- Device Port: RS232
- Baud Rate: 300bps to 921600bps
- USB Operating Voltage: 5V
- USB Connector: USB-B
- USB Protection: 200mA self-recovery fuse, isolated output
- USB Transmission Distance: Approximately 5 meters
- Power Supply Interface: 
    - Power Supply: 5 to 36V DC screw terminal
    - Protection: Anti-reverse
- Isolated RS232: 
    - Connector: DB9 male
    - Protection: TVS diode, surge protection, ESD protection, power isolation, and signal isolation
    - Transmission Mode: Point-to-point
    - Transmission Distance: Approximately 15 meters
- Indicators: 
    - PWR: Red power indicator that lights up when there is a USB connection and voltage is detected
    - TXD1~4: Green TX indicator that blinks when the RS232 port is sending data
    - RXD1~4: Blue RX indicator that blinks when the RS232 port is receiving data
- Operating Environment: 
    - Temperature Range: -40°C to 85°C
    - Humidity Range: 5% RH to 95% RH
- Operating System Compatibility: MacOS, Linux, Android, Windows 11, 10, 8.1, 8, 7

## Pinout

![USB TO 4CH RS232 pin definition](https://core-electronics.com.au/attachments/localcontent/USB-TO-4CH-RS232-details-13_26223520f8c.jpg)

## Dimensions

![USB TO 4CH RS232 outline dimensions](https://core-electronics.com.au/attachments/localcontent/USB-TO-4CH-RS232-details-size_16922c02e6c.jpg)

Once setup and driver installed, this is what you'll see in Windows:

![](https://core-electronics.com.au/attachments/localcontent/USB_TO_4CH_Serial_Converter_Environment_1_21536ee2af7.png)

## Documentation

- **WIKI**

## Shipping List

- 1 x OPTIONS USB TO 4CH RS232
- 1 x USB type-A to type-B cable ~1.2m
- 1 x Power adapter

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/S/WS-26854-1.jpg)