Comprehensive Product Summary: TRP-C08X USB to 4 RS232/422/485 Converter
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### 1. Product Overview

Product Name: TRP-C08X
Model Number: TRP-C08X
Series: TRP-C Series USB-to-Serial Converters
Article Number: TRP-C08X
Manufacturer: Trycom Technology Co., Ltd.
Manufacturer Address: No. 35, Zhongxing Rd., Guishan Township, Taoyuan County 333, Taiwan
Website: [www.trycom.com.tw](http://www.trycom.com.tw)
Contact: Tel: +886-3-350-3351 | Fax: +886-3-350-3352

The Trycom TRP-C08X is a professional-grade USB 2.0 to 4-port RS232/RS422/RS485 converter designed for industrial and automation environments. It provides a reliable interface between a USB-equipped host computer and multiple serial devices, supporting up to four independent serial channels. Each channel can be configured individually for RS232, RS422, or RS485 communication, making the TRP-C08X a versatile solution for connecting PLCs, sensors, controllers, and other serial-based equipment to modern computing systems.

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### 2. Key Features

- Multi-Port Serial Conversion: Converts one USB 2.0 interface into four independent serial ports supporting RS232, RS422, or RS485 standards.
- High-Speed Data Transmission: Supports baud rates from 75 bps up to 921.6 Kbps, with automatic baud rate detection and switching.
- Auto Configuration: Automatically detects and configures data format, baud rate, and RS485 data flow direction.
- Full PLC Compatibility: Fully supports industrial PLCs such as Mitsubishi Q, FX, and FATEK series.
- Surge and ESD Protection: ±15KV ESD protection on RS232 lines and surge/short-circuit protection on RS422/485 lines.
- Independent Port Configuration: Each port can be individually configured for baud rate, data bits, parity, and stop bits.
- FIFO Buffers: On-chip 512-byte FIFO for upstream/downstream data transfers, plus 256-byte buffer for each port to ensure stable communication.
- Power Supply: Draws power directly from the USB port (no external power supply required).
- Mounting Options: Supports DIN-rail and panel mounting for flexible industrial installation.
- LED Indicators: Dedicated LEDs for power and TX/RX activity on each communication channel.
- Cross-Platform Driver Support: Compatible with Windows (98/ME/2000/XP/Vista/7/8/8.1/CE5.0–7.0), Linux, Mac OS, and Android.
- Compact and Rugged Design: Industrial-grade enclosure with robust connectors and screw terminals for secure wiring.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Interface Type | USB 2.0 (Type B connector) |
| Serial Ports | 4 independent ports (RS232/RS422/RS485 selectable) |
| RS232 Interface | 4 × DB-9 male connectors, 16C450/16C550 compatible UARTs |
| RS422 Interface | 4 differential pairs, full-duplex (TX+, TX-, RX+, RX-) |
| RS485 Interface | 4 differential pairs, half-duplex (D+, D-) |
| Data Format | Asynchronous, configurable data bits, parity, and stop bits |
| Data Bits | 5, 6, 7, or 8 bits |
| Parity Options | None, Odd, Even, Mark, Space |
| Stop Bits | 1, 1.5, or 2 |
| Flow Control | Xon/Xoff (software), Hardware (RTS/CTS), or None |
| Baud Rate Range | 75 bps to 921.6 Kbps (auto-switching supported) |
| Communication Distance | RS422/485 up to 4000 ft (1250 m) |
| Protection | ±15KV ESD on RS232; surge and short-circuit protection on RS422/485 |
| Power Supply | USB bus-powered (5V DC, 190 mA typical) |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +65°C |
| Humidity | 10–90% RH, non-condensing |
| Dimensions | 151 mm (L) × 111 mm (W) × 26 mm (H) |
| Weight | 395 g (net), 691 g (with packaging) |
| Mounting Options | DIN-rail or panel mount |
| Connection Type | Screw terminal blocks (AWG #12–30) |
| Cable Type | USB 2.0 Type A to Type B cable |
| Indicators | Power (PWR), TX/RX LEDs for each port |
| Compliance | USB 2.0, backward compatible with USB 1.1/1.0 |

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### 4. Functionality

The TRP-C08X functions as a USB-to-multi-serial bridge, enabling a host computer to communicate with up to four serial devices simultaneously. Each port can be configured independently for RS232, RS422, or RS485 operation via DIP switches.

- RS232 Mode: Provides standard single-ended serial communication for devices such as modems, barcode scanners, and legacy serial equipment.
- RS422 Mode: Supports full-duplex differential signaling for long-distance, noise-immune communication.
- RS485 Mode: Operates in half-duplex mode with automatic direction control, ideal for multi-drop networks and industrial bus systems.

The converter automatically manages data flow direction in RS485 mode, eliminating the need for manual RTS control. It also supports asynchronous data transmission with flexible configuration of data bits, parity, and stop bits.

Typical Applications:
- Industrial automation and control systems
- PLC communication (Mitsubishi, FATEK, Siemens, etc.)
- Building management systems (BMS)
- SCADA and HMI interfaces
- Data acquisition and monitoring systems
- Serial device networking and testing environments

Compatibility:
The TRP-C08X is compatible with a wide range of operating systems and supports both 32-bit and 64-bit architectures. It can be integrated into Windows, Linux, Mac OS, and Android environments without requiring external power supplies.

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### 5. Components & Accessories

Included Items:
- TRP-C08X USB to 4 RS232/422/485 Converter unit
- USB 2.0 Type A to Type B cable
- Driver and utility CD (includes TRPCOM.EXE test software and drivers for multiple OS versions)
- User manual (printed or digital)

Optional Accessories:
- DIN-rail mounting kit
- Panel mounting brackets
- Additional USB cables (for extended length or industrial-grade shielding)

Connectors:
- USB Port: Type B female connector
- RS232 Ports: 4 × DB-9 male connectors
- RS422/485 Ports: 4 × 4-pin screw terminals (supports AWG #12–30 wire gauge)

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### 6. Installation & Setup

Hardware Installation:
1. Mount the TRP-C08X on a DIN rail or panel using the provided mounting options.
2. Connect the USB Type B port to the host computer using the supplied USB 2.0 cable.
3. Configure each serial port mode (RS232/RS422/RS485) using the onboard DIP switches.
4. Connect serial devices to the corresponding DB-9 or screw terminal connectors.
5. Observe the LED indicators to confirm power and communication status.

Software Installation:
- Insert the driver CD and select the appropriate driver for your operating system.
- Run the MSSetup.exe installer (for Windows XP/Vista/7/8/8.1/CE).
- Follow on-screen prompts; if prompted by Windows security, select “Install this driver software anyway.”
- After installation, connect the TRP-C08X to the USB port. The system will automatically detect and configure the device.
- Verify installation via Device Manager under “Ports (COM & LPT)” where the device appears as “High-Speed USB Serial Port (COMx).”

Uninstallation:
- Use MSUninst.exe or the Windows Control Panel “Add/Remove Programs” to remove the driver.
- Alternatively, uninstall directly from Device Manager by selecting “Uninstall” under the device properties.

Testing & Diagnostics:
- Use the TRPCOM.EXE utility (included on the CD or downloadable from Trycom’s website) for loopback and communication tests.
- Supports RS232, RS422, and RS485 loopback testing modes.
- Provides real-time monitoring of transmitted and received data for verification.

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### 7. Performance & Capabilities

- Transmission Speed: Up to 921.6 Kbps per port, supporting both low-speed and high-speed serial devices.
- Data Integrity: Built-in FIFO buffers (512 bytes per port) ensure smooth data flow and prevent data loss during high-speed communication.
- Distance Capability: RS422/485 communication supports cable lengths up to 1250 meters (4000 feet).
- Power Efficiency: Consumes only 190 mA from the USB bus, eliminating the need for external power adapters.
- Reliability: Surge and ESD protection safeguard both the converter and connected devices from electrical transients.
- Scalability: Multiple TRP-C08X units can be connected to a single host system to expand serial connectivity.
- Limitations:
- RS485 operates in half-duplex mode only.
- Maximum cable length and data rate depend on cable quality and environmental noise.
- Requires proper driver installation for full functionality on Windows systems.

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### 8. Standards & Compliance

- USB Compliance: Fully compliant with USB 2.0 specification; backward compatible with USB 1.1 and 1.0.
- Serial Standards: Conforms to EIA/TIA RS232, RS422, and RS485 standards.
- ESD Protection: ±15KV human body model (HBM) protection on all serial lines.
- Surge Protection: Integrated surge suppression circuitry on RS422/485 lines.
- Environmental Compliance: Designed for industrial temperature range (-10°C to +60°C) and humidity tolerance (10–90% non-condensing).
- Regulatory Compliance:
- CE and FCC Class A (industrial environment)
- RoHS compliant (lead-free manufacturing)
- Industry Standards Supported:
- PLC communication protocols (Mitsubishi, FATEK, etc.)
- Modbus RTU/ASCII over RS485
- Standard asynchronous serial communication protocols

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### 9. Additional Information

Warranty:
Trycom Technology Co., Ltd. provides a limited hardware warranty covering manufacturing defects and component failures under normal operating conditions. Warranty terms may vary by region; contact Trycom or authorized distributors for details.

Technical Support:
- Website: [www.trycom.com.tw](http://www.trycom.com.tw)
- Support Tools: Driver downloads, firmware updates, and test utilities (TRPCOM.EXE) available online.
- Email & Phone Support: Provided by Trycom’s technical service department.

Maintenance:
- The TRP-C08X requires minimal maintenance.
- Periodically inspect connectors and terminals for dust or oxidation.
- Ensure proper grounding and surge protection in industrial environments.
- Firmware and driver updates can be downloaded from Trycom’s website to maintain compatibility with new operating systems.

Software Utilities:
- TRPCOM.EXE: Diagnostic and loopback testing tool for verifying communication integrity.
- Driver Packages: Available for Windows (all major versions), Linux, Mac OS, and Android.
- Firmware Updates: Provided periodically to enhance performance and compatibility.

Upgrade Path:
The TRP-C08X can be integrated with Trycom’s TRP-C34H Ethernet Serial Server, allowing users to upgrade from USB-based serial communication to Ethernet-based networking without replacing existing serial infrastructure.

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### Summary

The Trycom TRP-C08X USB to 4 RS232/422/485 Converter is a robust, high-performance interface solution tailored for industrial automation, control systems, and data communication applications. Its combination of four independently configurable serial ports, automatic configuration features, and comprehensive protection mechanisms make it ideal for demanding environments. With full PLC compatibility, cross-platform driver support, and flexible mounting options, the TRP-C08X delivers both reliability and versatility for engineers and system integrators seeking to bridge modern USB interfaces with legacy serial equipment.

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Manufacturer: Trycom Technology Co., Ltd.
Model: TRP-C08X
Product Type: USB to 4-Port RS232/422/485 Converter
Website: [www.trycom.com.tw](http://www.trycom.com.tw)
Support Email: info@trycom.com.tw

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