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Waveshare Industrial RS232/RS485/RS422 to CAN Isolated Converter with Modbus RTU Support
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The Waveshare Industrial RS232/RS485/RS422 to CAN Isolated Converter is designed to connect conventional serial communication devices with CAN-based industrial networks. It supports data communication and conversion between RS232, RS485, RS422, and CAN, with four operating modes: transparent conversion, transparent conversion with identifiers, format conversion, and Modbus RTU protocol conversion.
The CAN interface supports CAN 2.0B extended frames, is compatible with CAN 2.0A standard frames, and offers configurable baud rates from 10 kbps to 1000 kbps. The RS232/RS485/RS422 interfaces support baud rates from 1200 bps to 460800 bps.
For reliable operation in demanding environments, the converter features onboard power and digital isolation, 15 kV ESD isolation protection, and 600 W lightningproof and anti-surge protection. It also includes a configurable 120 Ω matching resistor, up to 1000 CAN frames of buffer capacity, and a wide 5 V–36 V DC power input.
| Specification | Details |
|---|---|
| Product Type | Active digital isolated RS232/485/422 to CAN converter |
| Power Supply | 5–36 V DC |
| Power Protection | Anti-reverse protection |
| Device Ports | RS232/RS485/RS422, CAN |
| Isolated CAN Connector | Screw terminal |
| CAN Direction Control | Hardware automatic control |
| CAN Matching Resistor | Onboard 120 Ω matching resistor |
| CAN Baud Rate | 10 kbps–1000 kbps |
| Isolated RS232 Connector | DB9 female |
| RS232 Transmission Distance | About 15 m |
| RS232 Transmission Mode | Point-to-point |
| RS232 Baud Rate | 1200 bps–460800 bps |
| Isolated RS485/RS422 Connector | Screw terminal |
| RS485/RS422 Direction Control | Hardware automatic control |
| RS485/RS422 Protection | TVS diode, surge protection, ESD protection, power isolation and signal isolation |
| RS485/RS422 Matching Resistor | Onboard reserved 120 Ω matching resistor; NC by default, enabled via jumper |
| RS485 Transmission Mode | Point-to-multipoints, up to 32 nodes |
| RS422 Transmission Mode | Point-to-multipoints, up to 256 nodes |
| Recommended Repeater Usage | For 16 nodes or more in RS485/RS422 mode |
| RS485/RS422 Baud Rate | 1200 bps–460800 bps |
| PWR Indicator | Red power indicator; lights up when voltage is detected |
| RUN Indicator | System operating indicator; turns off if CAN bus is abnormal |
| COM Indicator | RS232/RS485/RS422 RX indicator; lights up when the corresponding port receives data |
| CAN Indicator | CAN RX indicator; lights up when the CAN port receives data |
| Operating Temperature | -15 to 70 °C |
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.