This Waveshare RS232 RS485 to RJ45 Ethernet Serial Server is a dual serial port device data acquisitor / IoT gateway designed for the industrial environment, 1-ch RS232 and 1-ch RS485 can work simultaneously without interfering with each other using one Ethernet cable. It combines multiple functions in one, including serial server, Modbus gateway, MQTT gateway, RS232 RS485 to JSON, etc. The other one Ethernet port can be used as a network switch or for cascading, and the PoE* function is optional for dual Ethernet ports. Provides two power supply methods: DC port (outer diameter: 5.5mm, inner diameter: 2.1mm) and screw terminal. The case with rail-mount support is small in size, easy to install, and cost-effective. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring…
* This product is a PoE receiver device (PD), it needs to be connected to the PoE power supply and get power from the PSE device to work normally.
Features:
- Dual RS232 and RS485 channels.
- Dual Ethernet ports.
- Simplified setup with a common network port.
- Enables serial devices on Ethernet networks.
- Remote configuration and management support.
- Suited for industrial automation and control.
- Reliable data communication solution.
Specification:
| Communication Mode | RS232 port × 1, RS485 port × 1, Ethernet port × 2 |
|---|---|
| Power Supply (V) | DC 5.5 power port, 6 ~ 45V DC screw terminal |
| Ethernet | 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection |
| Baud Rate (bps) | 300 to 115200 bps |
| Data Bit | 5 to 9 bits |
| Protocol | ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS |
| Configuration: | host, web browser, device management functions library |
| Operating Temperature (°C) | -40℃ ~ 85℃ |
| Humidity Range | 5% to 95% relative humidity |
Useful link:
Package Includes (Waveshare RS232 RS485 to RJ45 Ethernet Serial Server):
1 x Waveshare RS232 RS485 to RJ45 Ethernet Serial Server, RS232 And RS485 Dual Channels Independent Operation, Dual Ethernet Ports, common network port
Waveshare RS232 RS485 to RJ45 Ethernet Serial Server, RS232 Overview
The Waveshare RS232 RS485 to RJ45 Ethernet Serial Server is an industrial-grade dual-port media converter that bridges one RS232 and one RS485 serial interface over Ethernet. It functions as a serial server, Modbus gateway and MQTT gateway in a compact rail-mount enclosure, enabling seamless data acquisition and protocol conversion in harsh environments.
Key Features of Waveshare RS232 RS485 to RJ45 Ethernet Serial Server, RS232
- Independent dual channels: 1× RS232 and 1× RS485 operating simultaneously without interference
- Baudrate range from 300 bps to 115200 bps for flexible serial communication
- Dual RJ45 Ethernet ports: primary network connection plus switch/cascade port
- Multi-protocol support: serial server, Modbus RTU/TCP gateway, MQTT broker, JSON mapping
- Wide operating range: −40 ℃ to 85 ℃, 5%–95% RH for industrial environments
- Two power inputs: DC barrel jack (Ø5.5 mm×Ø2.1 mm) and 2-pin screw terminal (PoE optional)
- Rail-mountable metal case offers compact installation and robust protection
- Fast shipping from Zbotic: dispatch within 24 hours and genuine product guarantee
Applications and Use Cases
- Integrating legacy RS232 sensors and RS485 PLCs into Ethernet-based SCADA systems
- Deploying Modbus RTU devices onto TCP/IP networks for remote monitoring
- Setting up MQTT telemetry links from serial field instruments to cloud platforms
- Cascading multiple serial servers in industrial automation lines via the switch port
- Converting serial data streams to JSON for easy parsing by IoT applications
- Extending factory floor serial links across Ethernet to centralized control rooms
How to Use Waveshare RS232 RS485 to RJ45 Ethernet Serial Server, RS232
Mount the device on a DIN rail, connect your RS232 device to the DB9 or terminal block and RS485 lines to the A/B terminals, then link the primary RJ45 port to your network switch. Power via the DC barrel jack or screw terminal (or PoE if equipped), access the built-in web GUI to assign IP settings and select serial parameters, and start transparent data forwarding or protocol conversion.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Can I use both RS232 and RS485 ports at the same time?
Yes. The RS232 and RS485 channels operate independently, allowing simultaneous data exchange over a single Ethernet cable without signal interference.
How do I configure the device as a Modbus gateway?
After powering and connecting the unit, open the web interface via its IP address, navigate to the Modbus settings, select RTU/TCP mode, configure serial parameters and register mapping, then apply changes to enable transparent Modbus conversion.
What power supply options are available?
You can power the server using a 5–36 V DC barrel connector (Ø5.5 × Ø2.1 mm) or the two-pin screw terminal. If you opt for the PoE module, you can also power it via the Ethernet port.
Technical Specifications
| Brand | WAVESHARE |
|---|---|
| Model | RS232 |
| Interface / Protocol | RS485, RS232 |
| SKU | AI6699 |
| Weight | 0.1898 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Waveshare RS232 RS485 to RJ45 Ethernet Serial Server, RS232 And RS485 Dual Channels Independent Operation, Dual Ethernet Ports, common network port is a versatile usb interface module used across a wide range of applications including serial communication, industrial automation, data logging, PLC interfacing, and IoT gateway.
Common use cases:
- Converting USB to RS485 for industrial equipment
- Building a data logger for factory sensors
- Debugging embedded systems via UART
This product is ideal for embedded system developers and industrial automation engineers.
Technical Tip: Industrial-grade modules with isolation protect against ground loops and voltage spikes in noisy environments.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine WAVESHARE product sourced from authorized channels
Rakesh Choudhury (verified owner) –
This Waveshare RS232 RS485 to RJ45 Ethernet is perfect for hobbyists and students. Great quality components.
Vikram Ghosh (verified owner) –
Okay Waveshare RS232 RS485 to RJ45 Ethernet. Functional but not outstanding. Serves its purpose.
Amit Shah –
Great quality Waveshare RS232 RS485 to RJ45 Ethernet. Fast delivery from Zbotic. Highly recommended.
Nikita Agarwal (verified owner) –
Good Waveshare RS232 RS485 to RJ45 Ethernet. Using it in my project. Minor issues but overall happy.
Bharat Dhillon (verified owner) –
Good Waveshare RS232 RS485 to RJ45 Ethernet. Using it in my project. Minor issues but overall happy.
Devansh Patil (verified owner) –
This Waveshare RS232 RS485 to RJ45 Ethernet is reliable and well-made. Recommended for electronics enthusiasts.
Naman Ghosh (verified owner) –
Very satisfied with this Waveshare RS232 RS485 to RJ45 Ethernet. My project is working perfectly now.
Anirudh Gill (verified owner) –
This Waveshare RS232 RS485 to RJ45 Ethernet is exactly what I needed for my project. Top notch quality.
Vikram Negi –
This Waveshare RS232 RS485 to RJ45 Ethernet is perfect for hobbyists and students. Great quality components.
Piyush Kamath (verified owner) –
This Waveshare RS232 RS485 to RJ45 Ethernet is exactly what I needed for my project. Top notch quality.
Sumit Rao –
Very impressed with the quality of this Waveshare RS232 RS485 to RJ45 Ethernet. Will definitely order again.
Abhishek Srivastava (verified owner) –
Good Waveshare RS232 RS485 to RJ45 Ethernet. Using it in my project. Minor issues but overall happy.
Prashant Rathore (verified owner) –
Average Waveshare RS232 RS485 to RJ45 Ethernet. Works but quality could be slightly better.
Arnav Grewal (verified owner) –
This Waveshare RS232 RS485 to RJ45 Ethernet is reliable and well-made. Recommended for electronics enthusiasts.
Hemant Sharma (verified owner) –
Excellent Waveshare RS232 RS485 to RJ45 Ethernet! Works perfectly as described. Very happy with this purchase.
Vivek Yadav (verified owner) –
Decent quality Waveshare RS232 RS485 to RJ45 Ethernet. Delivered on time. Satisfied with the purchase.
Neeraj Kohli (verified owner) –
Very impressed with the quality of this Waveshare RS232 RS485 to RJ45 Ethernet. Will definitely order again.
Aryan Gupta (verified owner) –
Pretty good Waveshare RS232 RS485 to RJ45 Ethernet. Quality is reasonable for the price point.
Aarav Sethi (verified owner) –
Very satisfied with this Waveshare RS232 RS485 to RJ45 Ethernet. My project is working perfectly now.
Vidya Chatterjee (verified owner) –
Perfect Waveshare RS232 RS485 to RJ45 Ethernet. Works as expected. Packaging was secure and product arrived safely.
Mukesh Iyer (verified owner) –
Good Waveshare RS232 RS485 to RJ45 Ethernet. Works as described. Packaging could be improved slightly.
Paras Gill (verified owner) –
Love this Waveshare RS232 RS485 to RJ45 Ethernet. Build quality is excellent. Will order more from Zbotic.
Anjali Tiwari (verified owner) –
Nice Waveshare RS232 RS485 to RJ45 Ethernet. Does the job well. Good value for money.
Ankur Hegde (verified owner) –
Love this Waveshare RS232 RS485 to RJ45 Ethernet. Build quality is excellent. Will order more from Zbotic.
Shivam Tandon –
Very satisfied with this Waveshare RS232 RS485 to RJ45 Ethernet. My project is working perfectly now.
Girish Rao (verified owner) –
Bought this Waveshare RS232 RS485 to RJ45 Ethernet after researching many options. Best decision! Works flawlessly.
Aditya Solanki (verified owner) –
Superb Waveshare RS232 RS485 to RJ45 Ethernet! Value for money. Zbotic always delivers genuine products.
Vipin Trivedi (verified owner) –
Very impressed with the quality of this Waveshare RS232 RS485 to RJ45 Ethernet. Will definitely order again.