> **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

# Rail-Mount Serial Server, RS232/485/422 to RJ45 Ethernet Module(Without POE)

**Type:** Product page · **SKU:** WS-24759 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/waveshare-rail-mount-serial-server-without-poe-rs232-rs485-rs422-to-ethernet.html ([markdown](https://core-electronics.com.au/waveshare-rail-mount-serial-server-without-poe-rs232-rs485-rs422-to-ethernet.html.md))

Rail-Mount Serial Server, RS232/485/422 to RJ45 Ethernet Module, TCP/IP to serial, POE Function Optional...

## Pricing

- **Price:** $40.50 (inc GST) — $36.82 AUD, exc GST
- **Quantity discounts:** 10+ $35.35 (exc GST) · 25+ $34.24 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 5 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-24759:1` (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-24759:1.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

Bring legacy RS232, RS485 and RS422 equipment onto modern IP networks with this isolated, rail-mount serial server. This non-PoE module delivers transparent serial-to-Ethernet connectivity plus built-in gateway modes in a compact, easy-to-install enclosure. Ideal for reliable data acquisition and IoT gateway duties in industrial control, safety and security IoT, and intelligent instrument monitoring where electrical isolation, surge protection and simple web configuration matter.

### Technical Specifications

 | Variant | RS232/485/422 TO ETH (B) - common network port, electrical isolation |
|---|---|
| Product type | Serial server, Modbus gateway, MQTT gateway |
| Functions | Bi-directional transparent data transmission between RS232/485/422 and Ethernet; RS485 to JSON |
| Serial interfaces | Isolated RS232 x 1; Isolated RS485 x 1; Isolated RS422 x 1 |
| Ethernet | RJ45, 10/100M auto-negotiation, 2 kV surge protection, common network port |
| PoE | Not supported on this model |
| Power input | DC power port 5.5 mm OD, 2.1 mm ID; 6 to 36 V DC screw terminal |
| Isolation protection | Power isolation and signal isolation |
| Baud rate | 300 to 115200 bps |
| Parity | None, odd, even, mark, space |
| Data bits | 5 to 9 bits |
| Flow control | N/A |
| Network protocols | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS |
| Configuration | Host software, web browser, device management functions library |
| Enclosure | Rail-mount case, small size, easy to install |
| Typical applications | Industrial data acquisition, IoT gateway, safety and security IoT, intelligent instrument monitoring |

### What’s Included

- Rail-mount serial server module, RS232/485/422 to RJ45 Ethernet, non-PoE
 
### Documents

- [Wiki](https://www.waveshare.com/wiki/RS232/485/422_TO_POE_ETH_(B))

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/S/WS-24759-1.jpg)