Comprehensive Product Summary – Trycom TRP-C07 RS422/485 Optical Isolated Repeater
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### 1. Product Overview

Product Name: TRP-C07 RS422/485 Optical Isolated Repeater
Model Number: TRP-C07
Series: TRP Industrial Communication Interface Series
Article Number: TRP-C07
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-C07 is an industrial-grade RS-422/RS-485 optical isolated repeater designed to extend serial communication distances and enhance signal integrity in electrically noisy environments. It provides galvanic isolation, surge protection, and automatic configuration features, making it ideal for industrial automation, process control, and distributed communication systems.

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### 2. Key Features

- Extended Communication Range: Extends RS-422/RS-485 signals up to 4000 feet (1200 meters), allowing long-distance data transmission without signal degradation.
- Optical Isolation: Provides 3000 VDC isolation between communication segments, protecting devices from ground potential differences and high-voltage transients.
- Surge Protection: Built-in surge suppression on RS-422/485 data lines safeguards against voltage spikes and electromagnetic interference.
- Automatic Configuration: Automatically detects data format, baud rate, and RS-485 data direction flow, simplifying setup and reducing configuration errors.
- Auto Baud Rate Switching: Supports automatic baud rate detection from 300 bps to 115.2 Kbps, ensuring compatibility with a wide range of serial devices.
- RS-485 Bi-Directional Communication: Enables full duplex or half duplex communication between RS-422 and RS-485 devices.
- Flexible Power Input: Accepts DC power input from +10V to +30V via screw terminal or external DC adapter.
- LED Indicators: Power (PWR), Transmit (TX), and Receive (RX) LEDs provide real-time status monitoring.
- Industrial Mounting Options: Supports both DIN rail and panel mounting for flexible installation in control cabinets or equipment racks.
- Compact and Rugged Design: Industrial-grade enclosure with plug-in screw terminals for secure wiring and easy maintenance.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Power Input Voltage | DC +10V to +30V |
| Power Input Type | Screw terminal or external DC adapter |
| Power Consumption | 1.2 W |
| Interface Type | Industrial plug-in screw terminal |
| RS-485 Signal | Differential 2-wire half-duplex (D+, D–) |
| RS-422 Signal | Differential 4-wire full-duplex (TX+, TX–, RX+, RX–) |
| Supported Wire Gauge | AWG #12–30 |
| Communication Distance | Up to 4000 ft (1200 m) |
| Isolation Voltage | 3000 VDC optical isolation |
| LED Indicators | Power (PWR), Transmit (TX), Receive (RX) |
| Operating Temperature | -10°C to +50°C (some documentation lists -20°C to +65°C) |
| Storage Temperature | -20°C to +70°C |
| Humidity | 10–90% RH, non-condensing |
| Dimensions | 151 mm (L) × 75 mm (W) × 26 mm (H) |
| Weight | 380 g |
| Mounting Options | DIN rail or panel mount |
| Isolation Type | Optical isolation via photo-couplers |
| Surge Protection | Integrated on RS-422/485 data lines |
| Baud Rate Range | 300 bps to 115.2 Kbps (auto-detect) |
| Maximum Nodes Supported | Up to 32 connected devices |

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### 4. Functionality

The TRP-C07 functions as an optically isolated repeater for RS-422 and RS-485 communication networks. It regenerates and retransmits serial signals, extending communication distance and improving signal reliability.

Operational Principle:
- The device receives differential signals from an RS-422 or RS-485 line.
- Through internal photo-couplers, it isolates the input and output circuits, preventing ground loops and electrical interference.
- The regenerated signal is then transmitted to the next segment, maintaining signal integrity over long distances.

Use Cases and Applications:
- Industrial automation systems requiring long-distance serial communication.
- Factory control networks connecting PLCs, sensors, and actuators.
- Building management systems (BMS) and HVAC control.
- SCADA (Supervisory Control and Data Acquisition) systems.
- Data acquisition and monitoring systems in harsh electrical environments.
- Communication between RS-422 and RS-485 devices (bi-directional conversion supported).

Compatibility:
- Compatible with standard RS-422 and RS-485 devices.
- Supports both half-duplex (RS-485) and full-duplex (RS-422) communication modes.
- Can be used in mixed networks where RS-422 and RS-485 devices coexist.

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### 5. Components & Accessories

Included Components:
- TRP-C07 main module
- Plug-in screw terminal connectors
- User manual (Rev. 1.2, Feb. 2013)

Optional Accessories:
- External DC power adapter (recommended specification: 5.5 × 2.1 × 12 mm plug)
- DIN rail mounting clips or brackets
- Panel mounting screws
- Trycom support CD or downloadable utilities (TRPCOM.EXE test software)

Connectors:
- Power Connector: 2-pin terminal block or DC power jack
- RS-422/485 Connectors: Industrial plug-in screw terminals supporting AWG #12–30 wire sizes

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### 6. Installation & Setup

Power Connection:
- The TRP-C07 can be powered via a two-pin terminal block or an external DC adapter.
- Acceptable input voltage range: +10V to +30V DC.
- When power is correctly supplied, the PWR LED illuminates, indicating the system is operational.
- Recommended DC plug specification: 5.5 mm (outer) × 2.1 mm (inner) × 12 mm (length).

Signal Wiring:
- RS-422 Connection: Four differential lines (TX+, TX–, RX+, RX–).
- RS-485 Connection: Two differential lines (D+, D–).
- RS-422 to RS-485 Conversion: The TRP-C07 supports bi-directional communication between RS-422 and RS-485 devices, allowing mixed network configurations.

Mounting Options:
- DIN Rail Mounting: Snap the device onto a standard 35 mm DIN rail for quick installation in control panels.
- Panel Mounting: Secure the unit using screws through the mounting holes for fixed installations.

Configuration:
- The TRP-C07 automatically detects baud rate, data format, and RS-485 data direction.
- No manual configuration or DIP switch setting is required.
- LED indicators provide visual feedback for power and data transmission status.

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### 7. Performance & Capabilities

Signal Extension:
- Extends RS-422/485 communication up to 4000 ft (1200 m) per segment.
- Supports up to 32 nodes on an RS-485 network.

Data Rate:
- Automatically detects and supports baud rates from 300 bps to 115.2 Kbps.
- Maintains stable communication across varying data rates without manual adjustment.

Isolation & Protection:
- 3000 VDC optical isolation between input and output channels.
- Surge protection on all data lines to prevent damage from transient voltages.
- Protects against ground potential differences and electrical noise.

Efficiency & Reliability:
- Low power consumption (1.2 W typical).
- High noise immunity due to optical isolation and differential signaling.
- Continuous operation in industrial environments with temperature range from -10°C to +50°C (up to +65°C in some specifications).

Limitations:
- Maximum baud rate limited to 115.2 Kbps.
- Designed for RS-422/485 networks only (not compatible with RS-232 without a converter).
- Requires proper termination and biasing for optimal RS-485 performance.

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### 8. Standards & Compliance

Electrical and Safety Standards:
- Complies with RS-422 and RS-485 communication standards (EIA/TIA-422, EIA/TIA-485).
- Optical isolation tested to 3000 VDC.
- Surge protection integrated per industrial-grade transient suppression standards.

Environmental Compliance:
- Operating humidity: 10–90% non-condensing.
- Designed for industrial temperature ranges and environments.

Mounting and Mechanical Standards:
- DIN rail mounting conforms to IEC 60715 standard.
- Industrial plug-in screw terminals support standard wire gauges (AWG #12–30).

Regulatory Compliance:
- Manufactured under Trycom’s quality management system.
- Meets general CE and FCC requirements for electromagnetic compatibility (typical for Trycom industrial devices).

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### 9. Additional Information

Warranty:
- Standard manufacturer’s warranty (typically one year, as per Trycom policy).
- Covers defects in materials and workmanship under normal use.

Technical Support:
- Trycom provides technical assistance via phone, fax, and online resources.
- Support utilities and drivers available for download at [www.trycom.com.tw](http://www.trycom.com.tw).

Maintenance:
- Minimal maintenance required due to solid-state design.
- Periodic inspection of wiring and terminal connections recommended.
- Ensure proper ventilation and avoid exposure to excessive moisture or dust.

Firmware & Software Updates:
- The TRP-C07 operates as a hardware repeater and does not require firmware updates.
- Trycom provides PC-based test utilities (TRPCOM.EXE) for diagnostic and demonstration purposes.

Testing & Diagnostics:
- RS-422 Loopback Test:
- Connect TX and RX lines for self-test.
- Use TRPCOM.EXE utility to verify data transmission and reception.
- RS-485 Test:
- Connect to RS-485 devices (e.g., Trycom TRP-C28).
- Send test commands to verify communication integrity.

Product Revision:
- User Manual Revision: 1.2 (Printed February 2013).
- Specifications subject to change without notice to improve reliability and performance.

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### Summary

The Trycom TRP-C07 RS422/485 Optical Isolated Repeater is a robust, industrial-grade communication extender designed to enhance the reliability and range of serial networks. With its 3000 VDC optical isolation, surge protection, and automatic configuration capabilities, it ensures safe and efficient data transmission across long distances and electrically noisy environments.

Its flexible power input, compact form factor, and support for both DIN rail and panel mounting make it suitable for a wide range of industrial and automation applications. The TRP-C07’s plug-and-play design, combined with automatic baud rate and data direction detection, minimizes setup time and simplifies integration into existing systems.

Engineered by Trycom Technology Co., Ltd., the TRP-C07 exemplifies industrial reliability, safety, and performance for RS-422/RS-485 communication infrastructures.

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End of Product Summary – TRP-C07 RS422/485 Optical Isolated Repeater