USB to RS232 Converter UC-RS232
USB to RS232 Converter UC-RS232
Connecting legacy industrial equipment to modern computers is often complicated by the absence of DB9 COM ports on modern PCs and laptops. The UC-RS232 provides a robust, plug-and-play USB Type-C to RS232 serial interface. Equipped with genuine \(\pm 15\text{kV}\) ESD protection, hardware flow control (RTS/CTS), and full RS232 voltage compliance, it ensures error-free communication with legacy controllers, barcode readers, CNCs, and scientific instruments.
Key Features
- Industrial USB to RS-232 serial converter
- Reversible USB Type-C host connector
- Standard DB9 male RS-232 connector with full pinout
- Full hardware flow control support (RTS, CTS, DTR, DSR)
- Wide supported baud rates from 300 bps to 250 kbps
- High-performance FTDI chipset architecture
- Bus-powered directly from USB host (no external power required)
- Plug-and-play driver support for Windows, Linux, and macOS
- LED status indicators for Power, TX, and RX
- Compact inline industrial enclosure
Ordering Information
| Product Code | Description |
|---|---|
| UC-RS232 | USB to RS232 Converter (Type-C, DB9 Male, Flow Control) |
| SPD-RS485 | Surge Protection Device RS485 |
| UC-ISO-232-232 | Isolated RS232 to RS232 Repeater (2.5kVrms Isolation) |
| UC-RS485 | USB to RS485 Converter |
| UC-ETH-RS232-D | Ethernet Dual RS232 Converter |
Applications
- PLC & Controller Programming: Downloading and uploading ladder logic and parameters to legacy Omron, Siemens, and Mitsubishi PLCs.
- CNC Machinery & DNC Networking: Reliable G-code file transfer and serial command execution.
- Industrial Weigh Scales & Balances: Interfacing weighing indicators, load cell readouts, and ticket printers to POS/PC systems.
- Point of Sale & Barcode Systems: Interfacing scanners, receipt printers, and cash drawers.
Specifications
| Parameter | Value |
|---|---|
| Mounting Type | Inline / Field Portable |
| Dimensions | 60 mm x 40 mm x 20 mm (L x W x H) |
| Enclosure Material | Industrial ABS Plastic |
| Operating Temperature | 0 °C to +85 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 5V DC (Bus Powered via USB Type-C) |
| Working Current | 200 mA Max |
| Baud Rate Range | 300 bps to 250 kbps |
| Data Format | 7/8 Data bits, 1/2 Stop bits, None/Even/Odd Parity |
| RS232 Connector | Standard DB9 Male (DTE pinout configuration) |
| RS232 Output Voltage | \(\pm 7\text{V}\) nominal |
| RS232 Input Voltage Limit | \(\pm 30\text{V}\) maximum input tolerance |
| USB Connector | USB Type-C Receptacle (USB 2.0 Full Speed) |
Isolation & Protection Specifications
| Parameter | Value | Standard / Notes |
|---|---|---|
| Isolation Barrier | Non-Isolated | Direct high-speed USB-to-RS232 transceiver interface |
| ESD Protection | \(\pm 15\text{kV}\) Air / \(\pm 8\text{kV}\) Contact | IEC 61000-4-2 Human-Body Model & Contact |
| Surge Clamping | 600W TVS | Bidirectional TVS clamping diodes |
LED Indications and Diagnostics
| LED | Color | Status | Description |
|---|---|---|---|
| TX | Red | Blinking | Transmitting data from PC to RS232 device |
| RX | Green | Blinking | Receiving data from RS232 device into PC |
Mechanical Dimensions
Terminal Details & Port Pinouts
RS232 DB9 Male Connector Pinout
| Pin # | Signal | Direction | Description |
|---|---|---|---|
| 2 | RX | Input | Receive Data (from RS232 peripheral) |
| 3 | TX | Output | Transmit Data (to RS232 peripheral) |
| 5 | GND | Ground | Common Signal Ground |
| 7 | RTS | Output | Request To Send (hardware flow control) |
| 8 | CTS | Input | Clear To Send (hardware flow control) |
| 1, 4, 6, 9 | NC | – | No internal connection |
Revision History
| Revision | Date | Description of Change |
|---|---|---|
| Rev 1.0 | 2026-09-09 | Initial datasheet release |
Get the latest version of this datasheet : click here..
Support
Website: www.veawe.io
Email: info@veawe.io