The RS232 TO RS485 (B) is an industrial-grade, rail-type active opto-isolated RS232 to RS485 converter designed for reliable communication in demanding environments. It can be widely used for point-to-point, point-to-multipoint, and long-distance cascaded communication networks—either between two hosts or between a host and an MCU/peripheral.
It is ideal for application scenarios that require RS232 to RS485 conversion, such as Industrial Automation and IoT systems.
Applications:
- Industrial Automation
- Access control
- Self-service banking
- Parking services
- Highway toll stations
- Attendance systems
Features:
- Compatible with RS232/RS485 standards, converting RS232 signals into balanced differential RS485 signals
- Stable transmission at 300~115200bps
- Onboard unibody power supply isolation providing stable isolated voltage; no extra power supply required for the isolated terminal
- Onboard unibody digital isolation for high reliability, strong anti-interference, and low power consumption
- Onboard TVS (Transient Voltage Suppressor) for surge and spike protection; lightning-proof and anti-electrostatic
- Onboard resettable fuse and protection diodes for stable current/voltage output and improved shock resistance
- Optional 120Ω RS485 terminal resistor, enabled/disabled via switch
- 6V~36V DC wide-range power input via onboard screw terminal
- Industrial rail-mount ABS case, compact, easy to install, and cost-effective
Specifications:
| Model | Converter |
|---|---|
| Power Supply (V) | 6~36V DC |
| Baud Rate (bps) | 300 ~ 115200bps |
| Device Port | RS232/RS485 standard compatible |
RS232:
- Connector: Screw terminal
- Transmission distance: About 15m
- Transmission mode: Point-to-point
RS485:
- Connector: Screw terminal
- Direction control: Hardware automatic control
- Protection: 600W lightning-proof, surge-suppression, 15KV ESD protection
- Terminal resistor: 120Ω, switch-controlled
- Transmission distance: About 1.2km
- Transmission mode: Point-to-multipoint (up to 32 nodes, repeaters recommended for 16+ nodes)
Appearance:
- Case: Rail-mount ABS
- Dimensions: 91.6 × 23.3 × 58.7mm
Package Includes:
-
1 × Waveshare RS232 to RS485 Converter (B), Active Digital Isolator, Rail-Mount Support, 600W Lightning-Proof & Anti-Surge
Technical Specifications
| Brand | WAVESHARE |
|---|---|
| Model | RS232 |
| Interface / Protocol | RS485, RS232 |
| SKU | AI7540 |
| Weight | 0.07 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Waveshare RS232 To RS485 Converter (B), Active Digital Isolator 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
Raj Bhandari –
Great quality Waveshare RS232 To RS485 Converter ,. Powering my entire project board with this. Very reliable.
Akshat Thakur (verified owner) –
This Waveshare RS232 To RS485 Converter , is reliable and efficient. Running my IoT setup 24/7 with no issues.
Raj Rajan (verified owner) –
Average Waveshare RS232 To RS485 Converter ,. Works but efficiency could be better. Adequate for basic projects.
Rohan Gill (verified owner) –
Great quality Waveshare RS232 To RS485 Converter ,. Powering my entire project board with this. Very reliable.
Aman Bajaj (verified owner) –
Very satisfied with this Waveshare RS232 To RS485 Converter ,. Using it in my solar project, charges perfectly.
Rahul Nayak (verified owner) –
Good quality Waveshare RS232 To RS485 Converter ,. Ripple is low. Suitable for most electronics projects.
Advik Kapoor (verified owner) –
Bought multiple units of this Waveshare RS232 To RS485 Converter ,. All consistent quality. Zbotic is reliable.
Uday Dhawan (verified owner) –
Average Waveshare RS232 To RS485 Converter ,. Works but efficiency could be better. Adequate for basic projects.
Ankit Tiwari –
This Waveshare RS232 To RS485 Converter , is exactly what I needed. Output current capacity is as advertised.
Rohan Saxena (verified owner) –
Decent Waveshare RS232 To RS485 Converter ,. Voltage output is accurate. Compact form factor is a plus.
Yashwant Reddy (verified owner) –
Outstanding! This Waveshare RS232 To RS485 Converter , supplies clean power to my sensitive circuits. No noise at all.
Nikhil Rawat (verified owner) –
This Waveshare RS232 To RS485 Converter , is reliable and efficient. Running my IoT setup 24/7 with no issues.
Rashmi Singh (verified owner) –
Love this Waveshare RS232 To RS485 Converter ,. Compact size and excellent performance. Worth the price.
Mohit Bajaj –
This Waveshare RS232 To RS485 Converter , is reliable and efficient. Running my IoT setup 24/7 with no issues.
Kavya Pillai (verified owner) –
Great quality Waveshare RS232 To RS485 Converter ,. Powering my entire project board with this. Very reliable.
Sameer Nair (verified owner) –
Perfect Waveshare RS232 To RS485 Converter , for my portable project. Battery life is better than expected.
Hardik Banerjee –
Good Waveshare RS232 To RS485 Converter ,. Output is stable. Gets slightly warm under full load but nothing concerning.
Rajesh Arora (verified owner) –
This Waveshare RS232 To RS485 Converter , is exactly what I needed. Output current capacity is as advertised.
Ashwin Tiwari –
Bought multiple units of this Waveshare RS232 To RS485 Converter ,. All consistent quality. Zbotic is reliable.
Anand Gill (verified owner) –
Superb Waveshare RS232 To RS485 Converter ,! Efficiency is high and it runs cool even under load.
Kritika Banerjee –
Good Waveshare RS232 To RS485 Converter ,. Output is stable. Gets slightly warm under full load but nothing concerning.
Siddharth Sen (verified owner) –
Great Waveshare RS232 To RS485 Converter ,. Voltage is rock solid under varying loads. Highly recommended.