High-Performance | Fully Isolated | DIN Rail Mountable
Built for Demanding Industrial Environments
Maximize connectivity and reliability with our rugged 8-port USB to RS485 converter. Engineered for industrial applications, this converter ensures seamless communication, system protection, and easy deployment.
Key Features
-
Eight independent RS485 Ports
Connect multiple RS485 devices with a single USB interface — seamless multi-drop communication.
- Industrial grade isolation
Built-in isolation on each port protects your PC and devices against voltage spikes, ground loops, and electrical interference.
- DIN Rail Mountable
Easily mountable in control panels or industrial enclosures for clean, secure installations.
- Wide OS Compatibility
Works with Window and Linux — suitable for various industrial systems.
- Status LED Indicators
TX/RX and power LEDs for real-time diagnostics.
- Terminal resistors for each port
- Port powered by USB or screw terminals
- Screw terminals for RS485
- Auto detection of data speed
This USB to 8-port RS485 converter is an industrial grade, isolated converter with rail-mount, featuring the original CH348L chip and built-in protection circuits including power isolation, ADI magnetical isolation and TVS. This converter is easy to set up and use due to its fully automatic transceiver circuit with no delay (Automatic Send Control). Offering fast communication, stability, reliability, and safety, it is an ideal solution for various industrial control devices and applications.
- 8 individual RS485 ports, convenient for expanding multiple RS485 industrial serial devices.
- Supports direct power supply via USB Type-C port, and 5V~36V DC screw terminals for auxiliary power input.
- Onboard unibody power supply isolation, provides stable isolated voltage.
- Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.
- Onboard TVS (Transient Voltage Suppressor), effectively suppress voltage surges, spikes and over-voltages including and anti-electrostatic protection.
- Onboard self-recovery fuse and protection diodes, ensures current/voltage stable outputs, providing over-current/over-voltage protection.
- Built-in 120R terminal resistor on all RS485 ports, configurable via jumper inside the casing.
- LEDs for indicating power, device configuration status and transceiver status.
- Standard 35mm DIN Rail-mount case design, supporting stackable installation, easy to install and use.
Applications:
- Factory automation
- PLC Communication
- SCADA Systems
- Building management systems
- Energy monitoring
- Industrial IoT
- Serial device testing and diagnostics
Built to last. Engineered for performance.
Take control of your RS485 network with confidence. Protect your network, reduce downtime, and simplify your setup — all with one industrial-grade device.
Included items
- Serial converter
- USB Type-C cable for power
Resources
| SPECIFICATIONS |
| Part number |
28214 |
| Operating system |
- Windows 11, 10, 8.1, 8 (32/64-bit)
- Linux
|
| Processor |
WCH CH348L |
| Power |
USB Type-C (5V), screw terminal (5V~36V) |
| Serial interface |
RS485, 2-wire half duplex,
output voltage: ~5.0VDC, screw terminal blocks (A+, B- and GND) |
| Compatible with |
Modbus RTU/ASCII, BACnet |
| Bias resistors |
Yes |
| Installation method |
35mm DIN rail mount |
| USB interface |
USB Type-C, 200mA self-recovery fuse, isolated output |
| Indication LEDs |
Power, Activity (driver detected) and TX/RX for each port |
| Baud rate |
1200bps ~ 921600bps |
| Parity |
None, Odd, Even, Mark, Space |
| Data Bits |
5, 6, 7, 8 |
| Stop Bits |
1, 1.5, 2 |
| Terminal resistor |
Yes 120ohm |
| Direction control |
Automatic Send Control |
| COM port accessible by |
Downloadable virtual COM port drivers |
| Electrostatic (ESD) protection |
600W voltage/surge, 15KV ESD protection |
| Dimensions |
121mm x 72mm x 34mm |
| Interface compliance |
USB1.1, 2.0, 3.0, EIA/TIA RS-232 |
| Regulatory compliance |
FCC, CE and RoHS |
| Operating temp |
-15°C to 70°C |
| Warranty |
1 year limited warranty |
Useful optional accessories (not included)
