Protocol Converter Devices
4-Channel Isolated USB-RS485 Converter
Isolated and reliable communication from a single point in multi-RS485 applications!
The RS485 (or EIA485) communication standard, commonly used in industrial communication, is not directly recognized by computers. The EPC6400 USB-RS485 converter transforms the electrical signals of this standard into the USB standard supported by all computers. Systems with multiple RS-485 lines require multiple converters to connect to the computer. In this case, using separate USB-RS485 converter devices occupies the computer's USB ports and can cause confusion. When used with USB multiplier devices, issues such as insufficient power consumption may arise. The 4-Channel Isolated USB-RS485 Converter provides secure and stable communication simultaneously over 4 independent lines between computers or industrial control systems and RS485 devices. Each channel offers error-free data transfer even in noisy environments thanks to optical isolation and separate protection circuits. These RS485 lines are listed as separate COM ports on the computer.
| Product Code | 9140002 |
| Channel Count | 4 independent RS485 ports |
| Isolation | Optical isolation + 2.5 kV DC/DC isolation |
| USB Interface | USB 2.0 Full Speed (12 Mbps) Type B Connector |
| Communication Speed | 300 bps - 2 Mbps |
| Protection | ESD |
| Connection Type | Screw Terminal or RJ45 (optional) |
| Operating Temperature | –20°C … +70°C |
Product Code
9140002
Channel Count
4 independent RS485 ports
Isolation
Optical isolation + 2.5 kV DC/DC isolation
USB Interface
USB 2.0 Full Speed (12 Mbps) Type B Connector
Communication Speed
300 bps - 2 Mbps
Protection
ESD
Connection Type
Screw Terminal or RJ45 (optional)
Operating Temperature
–20°C … +70°C
4 Independent RS485 Channels - Each channel operates in isolation and can communicate with different devices without affecting each other.
Full Isolation (Opto + DC/DC) - Provides electrical isolation between computer and field side, protecting devices against voltage spikes, ground loop issues, and industrial noise.
Easy USB Operation - Plug-and-play structure without driver requirements for quick commissioning. (Windows / Linux / macOS compatible)
Modbus RTU / ASCII Compatible - High compatibility with PLCs, energy analyzers, sensors, HMIs, and all RS485-based devices.
Wide Operating Range - Speed support up to 300 bps – 1 Mbps.
Industrial Grade Design - ESD, short circuit, and reverse connection protected robust communication circuit.
Contact us for technical details, price quotes or your special requirements.
