Comprehensive Product Summary: TRP-C08U USB to 4 RS232 Optical Isolated Converter

---

### 1. Product Overview

Product Name: TRP-C08U
Model: TRP-C08U
Series: TRP-C Industrial USB Converter Series
Article Number: TRP-C08U
Manufacturer: Trycom Technology Co., Ltd.
Manufacturer Address: No. 35, Zhongxing Rd., Guishan Township, Taoyuan County 333, Taiwan
Contact: Tel: +886-3-350-3351 | Fax: +886-3-350-3352
Website: [www.trycom.com.tw](http://www.trycom.com.tw)

The Trycom TRP-C08U is a USB 2.0 to 4-port RS232 optical isolated converter designed for industrial and laboratory applications requiring reliable serial communication over USB. It enables a host computer to connect up to four independent RS232 serial devices simultaneously, each with configurable baud rates and data formats. The converter provides 3000 VDC isolation and ±15 kV ESD protection, ensuring robust performance in electrically noisy or harsh environments.

---

### 2. Key Features

- USB 2.0 Device Controller: Fully compliant with USB 2.0 specifications, backward compatible with USB 1.0 and 1.1.
- Four Independent RS232 Ports: Provides four isolated serial channels, each configurable with unique baud rate and data format.
- High Electrical Isolation: 3000 VDC optical isolation between USB and RS232 interfaces to protect connected equipment from ground loops and surges.
- Enhanced ESD Protection: ±15 kV electrostatic discharge protection on all RS232 lines.
- Custom Baud Rate Configuration: Supports user-defined baud rates from 300 bps to 256 kbps.
- FIFO Buffering: 512-byte FIFO buffer for both upstream and downstream data transfer per port, ensuring smooth data flow and reduced latency.
- LED Indicators: Individual LEDs for power and transmit/receive activity on each port (TXA/B/C/D, RXA/B/C/D).
- Compact Industrial Design: Rugged metal enclosure with optional DIN-rail or panel mounting for flexible installation.
- Plug-and-Play Operation: Automatically recognized by the operating system upon connection; no external power supply required.
- Cross-Platform Driver Support: Compatible with Windows (98/ME/2000/XP/Vista/7/8.1/CE5.0–7.0), Linux, Mac OS, and Android.
- Low Power Consumption: Operates directly from USB power, consuming only 70 mA.
- Wide Environmental Tolerance: Designed for industrial temperature and humidity ranges.

---

### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Input Interface | USB 2.0 Type B connector |
| Output Interface | 4 × RS232 ports (TXD, RXD, GND) |
| Isolation Voltage | 3000 VDC optical isolation |
| ESD Protection | ±15 kV on RS232 lines |
| Communication Speed | 300 bps to 256 kbps |
| Data Format | Asynchronous data with configurable bits, parity, and stop bits |
| Parity Options | None, Odd, Even, Mark, Space |
| Data Bits | 5, 6, 7, or 8 bits |
| Stop Bits | 1, 1.5, or 2 bits |
| FIFO Buffer | 512 bytes (upstream and downstream per port) |
| Power Supply | USB bus-powered (5 VDC, 70 mA typical) |
| Connection Type | Screw terminal block (AWG #12–30) |
| Mounting Options | DIN-rail or panel mount |
| Operating Temperature | 0°C to +65°C |
| Storage Temperature | -20°C to +65°C |
| Humidity | 10–90% RH, non-condensing |
| Dimensions (L × W × H) | 151 mm × 75 mm × 26 mm |
| Weight | 395 g |
| Cable Type | USB Type A to Type B cable |
| Material | Industrial-grade metal enclosure |
| Color | Metallic gray (standard Trycom industrial finish) |

---

### 4. Functionality

The TRP-C08U functions as a USB-to-serial bridge, converting USB data signals into four independent RS232 serial channels. When connected to a host computer, the device enumerates as four virtual COM ports, allowing legacy serial devices to communicate with modern USB-only systems.

Each RS232 port operates independently, enabling simultaneous communication with multiple devices such as PLCs, barcode scanners, data loggers, sensors, or industrial controllers. The converter’s optical isolation ensures that electrical disturbances or ground potential differences between devices do not affect data integrity or damage connected equipment.

Typical Applications:
- Industrial automation and process control
- Laboratory instrumentation and data acquisition
- Point-of-sale (POS) systems
- SCADA and telemetry systems
- Serial device networking and monitoring
- Embedded system debugging and testing

Compatibility:
The TRP-C08U is compatible with a wide range of operating systems and supports standard serial communication protocols. It can be used with any software that communicates via COM ports, including terminal emulators, SCADA software, and custom applications.

---

### 5. Components & Accessories

Included Items:
- TRP-C08U main converter unit
- USB 2.0 Type A to Type B cable
- Driver and utility CD (includes TRPCOM test software and drivers for multiple OS platforms)
- User manual (Rev. 1.2, printed September 2014)

Optional Accessories:
- DIN-rail mounting kit
- Panel mounting brackets
- External power adapter (optional for redundant power input, though not required)

Connectors:
- USB Port: Type B female connector for host connection
- RS232 Ports: Screw terminal blocks supporting AWG #12–30 wire gauge
- LED Indicators:
- PWR (Power)
- TXA/B/C/D (Transmit indicators for each port)
- RXA/B/C/D (Receive indicators for each port)

---

### 6. Installation & Setup

System Requirements:
- Available USB 2.0 port (backward compatible with USB 1.1)
- Supported operating system (Windows, Linux, Mac OS, Android)
- Administrative privileges for driver installation

Mounting Options:
- DIN-Rail Mounting: Optional DIN-rail bracket allows quick installation in control cabinets.
- Panel Mounting: Integrated mounting holes for secure attachment to flat surfaces.

Installation Steps (Windows Example):
1. Power on the computer and insert the driver CD.
2. Run the appropriate driver installer (e.g., *MSSetup.exe* for Windows XP/Vista/7/8).
3. Follow on-screen prompts; if prompted by Windows security, select “Install this driver software anyway.”
4. Connect the TRP-C08U to the USB port using the supplied cable.
5. The system automatically detects the device and installs four virtual COM ports.
6. Verify installation via Device Manager under “Ports (COM & LPT)” and “Universal Serial Bus Controllers.”

Uninstallation:
- Use *MSUninst.exe* utility or remove via Control Panel → Add/Remove Programs.
- Alternatively, right-click the device in Device Manager and select “Uninstall.”

Testing:
- Use Trycom’s *TRPCOM.EXE* utility for loopback testing.
- Connect TXD and RXD pins for each port and verify data transmission using the software’s terminal mode.

---

### 7. Performance & Capabilities

Data Throughput:
Supports communication speeds from 300 bps to 256 kbps, suitable for most industrial and instrumentation applications.

Isolation & Protection:
- 3000 VDC optical isolation between USB and RS232 circuits prevents ground loops and electrical interference.
- ±15 kV ESD protection ensures resilience against electrostatic discharge events.

Power Efficiency:
Consumes only 70 mA from the USB bus, eliminating the need for external power supplies.

Latency & Buffering:
Each port includes a 512-byte FIFO buffer for both transmit and receive directions, minimizing data loss and ensuring stable communication even under high traffic conditions.

Reliability:
The converter’s robust design and industrial-grade components make it suitable for continuous operation in demanding environments.

Limitations:
- Maximum baud rate limited to 256 kbps (not suitable for high-speed serial applications beyond this threshold).
- RS232-only output (no RS422/485 support in this model; for those, Trycom offers TRP-C08M).

---

### 8. Standards & Compliance

Electrical & Interface Standards:
- USB 2.0 (Full-Speed, 12 Mbps)
- RS232 (TIA/EIA-232-F standard)

Isolation & Protection Standards:
- Optical isolation: 3000 VDC
- ESD protection: ±15 kV (IEC 61000-4-2 compliant)

Environmental Compliance:
- Operating temperature: 0°C to +65°C
- Storage temperature: -20°C to +65°C
- Humidity: 10–90% non-condensing

Regulatory Compliance:
- CE compliant
- FCC Class A (industrial environment)
- RoHS compliant (lead-free manufacturing)

Software Compatibility:
- Windows 98/ME/2000/XP/Vista/7/8.1/CE5.0–7.0
- Linux kernel 2.4 and above
- Mac OS X and later
- Android (USB host mode)

---

### 9. Additional Information

Warranty:
Standard manufacturer warranty (typically one year, depending on region and distributor). Covers defects in materials and workmanship under normal use.

Technical Support:
Trycom provides comprehensive technical support through its website, including driver downloads, firmware updates, and troubleshooting guides.

Maintenance:
The TRP-C08U requires minimal maintenance. Periodic inspection of connectors and cables is recommended to ensure reliable operation. Avoid exposure to excessive dust, moisture, or vibration.

Firmware & Software Updates:
Driver and utility updates are available from Trycom’s official website. Users are encouraged to download the latest versions to ensure compatibility with new operating systems.

Documentation:
- User’s Manual (Rev. 1.2, September 2014)
- Quick Installation Guide
- TRPCOM Test Utility Manual

Manufacturer’s Note:
Specifications are subject to change without notice to improve product reliability and performance. Product names mentioned may be trademarks of their respective owners.

---

### Summary

The Trycom TRP-C08U USB to 4 RS232 Optical Isolated Converter is a robust, industrial-grade communication interface designed to bridge modern USB systems with legacy RS232 devices. With four independent serial ports, 3 kV optical isolation, and ±15 kV ESD protection, it ensures safe and stable data transmission in demanding environments. Its plug-and-play design, cross-platform driver support, and flexible mounting options make it ideal for automation, instrumentation, and data acquisition applications.

Compact yet powerful, the TRP-C08U exemplifies Trycom’s commitment to reliable industrial connectivity solutions, offering engineers and system integrators a dependable tool for expanding serial communication capabilities in modern computing environments.