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USB to RS485 (D) Isolated Bidirectional Converter
Industrial-grade isolated USB to RJ45 single-channel RS485 converter with an original FT232RNL chip. It features an onboard isolated RS485 transceiver circuit, an RJ45 port with T568B pinout, and a 2m cable for stable and reliable communication. Suitable for industrial control equipment, instrumentation, access control and security, PLC communication, and other applications.
Features At A Glance
- Supports USB to RJ45 single-channel RS485 bidirectional communication, featuring a plug-and-play USB-A port and an RJ45 port, easy to use
- Features original FT232RNL chip, enabling high-speed, stable, and reliable communication with mature drivers and excellent compatibility
- Onboard isolated RS485 transceiver, integrated signal isolation and isolated power supply, effectively improving communication stability and anti-interference capabilities in industrial environments
- Onboard TVS / ESD protection components, providing transient surge and ESD protection for both the USB and RS485 ports, making it suitable for complex electromagnetic environments
- Onboard multiple resettable fuses, protection diodes, and 120R termination resistor, effectively suppressing over-current and over-voltage surges for enhanced bus communication stability
- Onboard 3 LEDs for indicating the power and transceiver status
Industrial-grade isolated USB to RJ45 single-channel RS485 converter with an original FT232RNL chip, onboard isolated RS485 transceiver circuit, RJ45 port with T568B pinout, and a 2 m cable for stable and reliable communication. Suitable for industrial control equipment, instrumentation, access control and security, PLC communication, and other RS485 applications.
| Specification | Details |
|---|---|
| Product Type | Industrial-grade isolated USB to RJ45 single-channel RS485 converter |
| Baud Rate | 300 bps ~ 512000 bps |
| Host Port | USB |
| Device Port | RJ45 single-channel RS485 |
| USB Operating Voltage | 5V |
| USB Connector | USB-A port |
| USB Protection | Over-current protection, ESD protection, and transient surge suppression |
| USB Transmission Distance | Approx. 5 m |
| RS485 Connector | RJ45 port with T568B pinout |
| RS485 Pinout | 1=A1, 2=B1, 3=NC, 4=5V, 5=5V, 6=NC, 7=GND, 8=GND |
| Direction Control | Hardware automatic control |
| RS485 Protection | Surge suppression, ESD protection, over-current/over-voltage protection, reverse surge protection, and bus matching optimization capability |
| Isolation Solution | Isolated RS485 transceiver, integrated signal isolation and isolated power supply |
| Channel | Single-channel RS485 |
| RS485 Transmission Distance | Approx. 1.2 km (low rate, with ideal cable) |
| Transmission Mode | Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) |
| LED Indicators | PWR, TXD, RXD |
| PWR Indicator | Red power indicator, lights up when there is USB connection and voltage is detected |
| TXD Indicator | Red TX indicator, lights up when the USB port sends data |
| RXD Indicator | Red RX indicator, lights up when the device port sends data back |
| Operating Temperature | -40℃ ~ 85℃ |
| Operating Humidity | 5%RH ~ 95%RH |
| Supported OS | Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 / XP |
| Cable | Black, PVC jacket, 2 m length |
Onboard original FT232RNL chip
Features the FT232RNL USB to serial chip with mature drivers, stable communication, and excellent compatibility, combined with an isolated RS485 transceiver circuit for stable and isolated conversion between USB and the RS485 bus
Isolated RS485 long-distance transmission
The USB signal can be converted into a balanced differential RS485 signal, with hardware automatic transceiver direction control. Supports 300bps ~ 512000bps baud rate, and the RS485 transmission distance is up to 1.2km at low baud rates and under ideal cable conditions
Multi-system Support
Supports Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 / XP,
compatible with PCs, industrial computers, embedded hosts, and other devices
Multiple Protection, Safe And Stable
Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, surge & ESD protection. Onboard resettable fuses and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance.
RJ45 single-channel RS485 connector
Features an RJ45 port for single-channel RS485 output with a T568B pinout,
enabling quick connection to compatible devices or adapter cables using the same pinout
Working Status Indicators
Onboard TXD and RXD indicators clearly show the USB and RS485 operating status
for easy on-site debugging and troubleshooting
Outline dimensions
Resources & Services
WIKI: docs.waveshare.com/USB_TO_RS485_D
Shipping list
Weight: 0.087 kg
USB TO RS485 (D) x1
