Comprehensive Product Summary – TRP-C39 Fiber to RS232/422/485 Isolated Converter (ST, 2 km)

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### 1. Product Overview

Product Name: TRP-C39 Fiber to RS232/422/485 Isolated Converter
Model Number: TRP-C39
Series: TRP Industrial Fiber Converter Series
Article Number: TRP-C39
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-C39 is an industrial-grade fiber optic converter designed to extend serial communication interfaces (RS-232, RS-422, and RS-485) over optical fiber. It provides galvanic isolation, surge protection, and automatic configuration features, ensuring reliable data transmission in electrically noisy or high-interference environments. The device supports multi-mode fiber connections via ST connectors and can transmit data up to 2 kilometers.

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### 2. Key Features

- Multi-Interface Conversion: Automatically detects and switches between RS-232, RS-422, and RS-485 serial communication standards without manual configuration.
- Optical Fiber Extension: Converts serial signals to optical fiber, extending communication distance up to 2 km using multi-mode fiber (62.5/125 µm).
- High Electrical Isolation: Provides 3000 VDC isolation between serial and fiber interfaces, protecting connected equipment from ground loops and electrical surges.
- Surge and Overcurrent Protection: Integrated protection circuits safeguard RS-422/485 lines against transient voltage spikes and overcurrent conditions.
- Auto Baud Rate and Direction Control: Automatically detects baud rates from 300 bps to 115.2 kbps and manages data direction flow for RS-485 communication.
- Wide Power Input Range: Operates from a DC supply of +10 V to +30 V, suitable for industrial power systems.
- LED Indicators: Front-panel LEDs display power, transmit (TX), and receive (RX) activity for quick status monitoring.
- Industrial Mounting Options: Supports both DIN-rail and panel mounting for flexible installation in control cabinets or equipment racks.
- Cross-Platform Compatibility: Works with Windows, Linux, Unix, and macOS operating systems.
- Compact and Rugged Design: Built for industrial environments with robust housing and wide operating temperature range.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Power Input Voltage | DC +10 V to +30 V |
| Power Consumption | 1.6 W |
| Interfaces Supported | RS-232, RS-422, RS-485 (auto switching) |
| RS-232 Signals | TXD, RXD, GND (3-wire full duplex) |
| RS-422 Signals | TX+, TX-, RX+, RX- (4-wire full duplex differential) |
| RS-485 Signals | D+, D- (2-wire half duplex differential) |
| Fiber Type | Multi-mode ST connector, 62.5/125 µm |
| Optical Wavelength | 820 nm |
| Transmission Distance | Fiber: up to 2 km; RS-422/485: up to 4000 ft (approx. 1250 m) |
| Baud Rate | 300 bps to 115.2 kbps (auto detection) |
| Isolation Voltage | 3000 VDC |
| Operating Temperature | -10 °C to +60 °C (typical) |
| Storage Temperature | -20 °C to +70 °C |
| Humidity | 10–90% RH, non-condensing |
| Dimensions | 151 mm (L) × 75 mm (W) × 26 mm (H) |
| Weight | 375 g |
| Connection Type | Screw terminal (supports up to AWG 12 wire) |
| Power Connector | 2-pin terminal block or 5.5 × 2.1 × 12 mm DC jack |
| LED Indicators | Power (PWR), Transmit (TX), Receive (RX) |
| Mounting Options | DIN-rail and panel mount |
| Operating Systems Supported | Windows, Linux, Unix, macOS |

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### 4. Functionality

The TRP-C39 functions as a bi-directional fiber optic converter that translates electrical serial signals (RS-232, RS-422, or RS-485) into optical signals and vice versa. This conversion allows data to be transmitted over long distances with immunity to electromagnetic interference (EMI), radio frequency interference (RFI), and ground potential differences.

How It Works:
1. The device automatically detects the connected serial interface type (RS-232, RS-422, or RS-485).
2. Incoming serial data is converted into optical signals and transmitted through the ST multi-mode fiber port.
3. At the receiving end, another TRP-C39 (or compatible fiber converter) converts the optical signal back into the corresponding serial format.
4. The converter automatically manages data direction for RS-485 communication, eliminating the need for manual flow control.

Use Cases and Applications:
- Industrial automation and control systems
- SCADA (Supervisory Control and Data Acquisition) networks
- Remote serial device communication (PLC, sensors, meters)
- Factory and process monitoring systems
- Transportation and traffic control systems
- Energy management and substation communication
- Building automation and security systems

Compatibility:
The TRP-C39 is compatible with standard serial communication devices and can interface with PCs, PLCs, data loggers, and other RS-232/422/485 equipment. It supports major operating systems, including Windows, Linux, Unix, and macOS, and can be integrated into existing serial communication infrastructures.

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### 5. Components & Accessories

Included Items:
- TRP-C39 Fiber to RS232/422/485 Isolated Converter unit
- User manual (printed or digital)
- Mounting hardware for DIN-rail or panel installation

Optional Accessories:
- External DC power adapter (5.5 × 2.1 × 12 mm plug)
- Multi-mode ST fiber optic cables (62.5/125 µm)
- RS-232/422/485 terminal cables
- Trycom test utilities (available for download from manufacturer website)

Connectors:
- Fiber Port: ST-type multi-mode connector
- Serial Port: Screw terminal block for RS-232/422/485 signals
- Power Port: 2-pin terminal block and DC jack input

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### 6. Installation & Setup

Power Requirements:
The TRP-C39 operates from a DC power source between +10 V and +30 V. Power can be supplied through either:
- A 2-pin terminal block, or
- A standard DC adapter with a 5.5 × 2.1 × 12 mm plug.

When power is applied, the PWR LED illuminates, indicating that the device is operational.

Mounting Options:
- DIN-Rail Mounting: The converter can be clipped onto a standard DIN rail for industrial control cabinet installations.
- Panel Mounting: Mounting holes allow secure attachment to flat surfaces or panels.

Configuration:
- The TRP-C39 requires no manual configuration for interface type or baud rate.
- It automatically detects whether the connected device uses RS-232, RS-422, or RS-485.
- Baud rate and data direction are automatically managed.

Connection Guidelines:
- RS-232: Connect TXD, RXD, and GND lines.
- RS-422: Connect TX+, TX-, RX+, RX-.
- RS-485: Connect D+ and D-.
- Fiber: Connect ST multi-mode fiber cables between two TRP-C39 units or compatible fiber devices.

Testing and Verification:
Trycom provides test utilities such as TRPCOM.EXE, Test422.EXE, and Test485.EXE for verifying communication performance. These tools allow users to perform loopback and transmission tests under Windows or DOS environments.

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### 7. Performance & Capabilities

Transmission Distance:
- Up to 2 km over multi-mode fiber (62.5/125 µm, ST connector).
- Up to 1250 m (4000 ft) for RS-422/485 electrical connections.

Data Rate:
- Supports baud rates from 300 bps to 115.2 kbps, automatically detected and configured.

Signal Integrity:
- Optical transmission ensures error-free communication even in high-noise industrial environments.
- 3000 VDC isolation eliminates ground loop interference.
- Surge and overcurrent protection enhance reliability and equipment safety.

Efficiency and Reliability:
- Low power consumption (1.6 W typical).
- Stable operation across wide temperature and humidity ranges.
- Auto direction control for RS-485 ensures efficient half-duplex communication without software intervention.

Limitations:
- Designed for multi-mode fiber only (not compatible with single-mode fiber).
- Maximum baud rate limited to 115.2 kbps.
- Transmission distance limited to 2 km for optical links.

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### 8. Standards & Compliance

Electrical and Safety Standards:
- 3000 VDC isolation meets industrial-grade insulation requirements.
- Surge and overcurrent protection conform to standard industrial communication safety practices.

Environmental Compliance:
- Operating temperature range: -10 °C to +60 °C (typical industrial range).
- Humidity tolerance: 10–90% non-condensing.

Mounting and Design Standards:
- DIN-rail and panel mounting conform to industrial installation standards.

Regulatory Compliance:
- Designed and manufactured by Trycom Technology Co., Ltd., an ISO-certified company.
- Complies with CE and FCC Class A industrial emission standards (typical for Trycom industrial converters).

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### 9. Additional Information

Warranty:
- Standard manufacturer warranty (typically 1 year, depending on region and distributor).
- Covers defects in materials and workmanship under normal operating conditions.

Technical Support:
- Trycom provides technical documentation, user manuals, and downloadable test utilities.
- Support available via email, phone, and online resources at [www.trycom.com.tw](http://www.trycom.com.tw).

Maintenance:
- The TRP-C39 requires minimal maintenance.
- Periodically inspect fiber connectors and terminal blocks for dust or oxidation.
- Ensure proper grounding and stable power supply for optimal performance.

Firmware and Software Updates:
- No firmware configuration required; device operates plug-and-play.
- Test and diagnostic utilities are periodically updated on the Trycom website.

Product Lifecycle and Reliability:
- Designed for continuous 24/7 industrial operation.
- Solid-state design with no moving parts ensures long service life.
- Suitable for deployment in harsh industrial, transportation, and automation environments.

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### Summary

The Trycom TRP-C39 Fiber to RS232/422/485 Isolated Converter is a robust, industrial-grade communication extender that bridges traditional serial interfaces with modern fiber optic infrastructure. Its automatic interface detection, wide power input range, and high-voltage isolation make it ideal for demanding industrial applications where reliability and data integrity are critical. Supporting up to 2 km of optical transmission, the TRP-C39 effectively eliminates electrical noise and ground potential issues, ensuring stable, long-distance serial communication.

With its compact form factor, DIN-rail/panel mounting flexibility, and cross-platform compatibility, the TRP-C39 is a versatile solution for system integrators, automation engineers, and industrial network designers seeking a dependable serial-to-fiber communication link.

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Manufacturer: Trycom Technology Co., Ltd.
Model: TRP-C39
Type: Fiber to RS232/422/485 Isolated Converter (ST, Multi-mode, 2 km)
Key Attributes: 3000 VDC isolation, auto interface switching, surge protection, DIN-rail mount, 10–30 VDC input, 1.6 W power consumption, 151 × 75 × 26 mm, 375 g.

Ideal Applications: Industrial automation, SCADA, remote monitoring, and serial communication extension over fiber.