Moxa TCF-142-S-ST Single-mode Industrial Fiber Extension Unit Converter

The Moxa TCF-142-S-ST is a robust industrial fiber extension unit converter designed to bridge the gap between serial communication and fiber optic networks in demanding environments. This device excels by providing extended transmission distances, immunity to electromagnetic interference (EMI), and enhanced data security, making it an indispensable component for critical industrial automation systems. Its core advantages lie in its industrial-grade construction, single-mode fiber support for long-haul communication, and reliable serial-to-fiber conversion capabilities. Key technical parameters include a transmission distance of up to 40 km via single-mode fiber, support for RS-232, RS-422, and RS-485 serial interfaces, and an operating temperature range of -40 to 75°C.

Product Specifications

| Feature                  | Specification                                        |

| :----------------------- | :--------------------------------------------------- |

| Interface                | 1 x RS-232/422/485, 1 x SC Connector (Single-mode) |

| Serial Data Rates        | Up to 921.6 kbps                                     |

| Fiber Wavelength         | 1310 nm                                              |

| Max. Transmission Dist.  | 40 km (Single-mode)                                  |

| Power Consumption        | < 3.5 W                                              |

| Power Input              | 12-48 VDC (redundant power inputs)                   |

| Operating Temperature    | -40 to 75°C                                          |

| Housing                  | IP30 metal case                                      |

| Mounting                 | DIN-rail mounting                                    |

Core Features & Market Positioning

The Moxa TCF-142-S-ST distinguishes itself in the industrial communication market through its unwavering reliability and specialized single-mode fiber capability. Unlike many converters that offer limited distance or multimode fiber support, the TCF-142-S-ST enables data transmission over extended ranges of up to 40 kilometers, a crucial requirement for geographically dispersed industrial sites or large manufacturing facilities. This long-haul capability, coupled with its inherent immunity to electrical noise, positions it as a premium solution for applications where data integrity and uninterrupted communication are paramount. Its industrial-grade design ensures operation in harsh conditions, a testament to Moxa's commitment to manufacturing durable and dependable networking equipment for critical infrastructure.

Key Application Scenarios

The Moxa TCF-142-S-ST is ideally suited for a variety of industrial applications where reliable, long-distance serial communication is essential. This includes connecting supervisory control and data acquisition (SCADA) systems across vast plant layouts or between different facilities, extending communication for remote terminal units (RTUs) in utilities and energy sectors, and securing data links in process control environments prone to electromagnetic interference. Its single-mode fiber support makes it particularly valuable for telecommunication backhaul applications and connecting distributed industrial control panels over significant distances, ensuring robust data flow where traditional copper cabling is impractical or unreliable.

Practical System Integration Guidance

Integrating the Moxa TCF-142-S-ST into an existing industrial network is a straightforward process, primarily involving proper serial and fiber optic connections. For serial communication, users must configure the DIP switches on the unit to match the desired RS-232, RS-422, or RS-485 mode and baud rate. The unit supports various data formats, including 7 or 8 data bits, even or odd parity, and 1 or 2 stop bits, which must align with the connected serial devices. For fiber optic connectivity, ensure that the single-mode SC connectors are clean and that the fiber optic cable adheres to the correct specifications for the 1310 nm wavelength and the 40 km distance requirement. Redundant power inputs simplify power connection, allowing for connection to two separate DC power sources to enhance system uptime.

Operation and Risk Mitigation

Operating the Moxa TCF-142-S-ST requires a fundamental understanding of serial communication protocols and fiber optic principles. Proper wiring of the serial interface is critical to prevent data errors or communication failures; always consult the device manual for specific pinouts for RS-232, RS-422, or RS-485 configurations. To mitigate risks associated with power fluctuations, utilize the redundant power inputs and connect them to reliable DC power sources, ideally with surge protection. Environmental considerations are also key; while the TCF-142-S-ST is designed for harsh conditions, avoid exposing it to direct water ingress or extreme temperatures beyond its specified operating range. Regular inspection of fiber optic connections for cleanliness and physical integrity will prevent signal degradation.

Scalability & Long-Term Value

The Moxa TCF-142-S-ST offers significant long-term value through its robust design and compatibility with evolving industrial communication standards. Its ability to operate with various serial protocols ensures flexibility as industrial systems upgrade or change. Furthermore, by leveraging fiber optics, it provides a future-proof communication backbone that is inherently resistant to electromagnetic interference and capable of higher bandwidths than copper alternatives, facilitating future network expansion and integration with Industrial Internet of Things (IIoT) initiatives. The device's industrial-grade construction guarantees a long operational lifespan, reducing the total cost of ownership by minimizing maintenance and replacement cycles.

Frequently Asked Questions

What is the maximum distance the Moxa TCF-142-S-ST can transmit data?

The Moxa TCF-142-S-ST converter is engineered for extended reach, supporting data transmission up to 40 kilometers. This capability is achieved by utilizing single-mode fiber optic cabling, which is specifically designed for long-haul communication links. This extensive range makes it suitable for large industrial complexes, geographically dispersed sites, or utility networks.

Can the Moxa TCF-142-S-ST be used with both RS-232 and RS-485 devices?

Yes, this versatile unit supports multiple serial communication standards, including RS-232, RS-422, and RS-485. Users can select the desired serial interface mode using the device's DIP switches, allowing seamless integration with a wide array of existing serial equipment. This flexibility simplifies migration and network expansion.

What type of fiber optic cable is required for the Moxa TCF-142-S-ST?

The Moxa TCF-142-S-ST requires single-mode fiber optic cable. It features an SC connector, which is standard for many industrial fiber optic applications. Ensure the fiber optic cable is rated for the 1310 nm wavelength used by the converter for optimal performance.

Is the Moxa TCF-142-S-ST suitable for harsh industrial environments?

Absolutely, the TCF-142-S-ST is built to withstand demanding industrial conditions. It features an industrial-grade metal housing with an IP30 protection rating and operates reliably within a wide temperature range of -40 to 75°C. This rugged design ensures consistent performance in factories, outdoor installations, and other challenging settings.

How is power supplied to the Moxa TCF-142-S-ST, and is it protected against outages?

The converter supports redundant power inputs, accepting a wide DC voltage range from 12 to 48 VDC. This redundancy allows for connection to two separate power sources, enhancing system reliability and preventing communication interruptions in the event of a single power supply failure.

What are the main advantages of using fiber optic extension units like the TCF-142-S-ST?

Fiber optic extension units offer significant advantages, including immunity to electromagnetic interference (EMI), which is prevalent in industrial settings. They also provide enhanced data security due to the difficulty of tapping fiber optic cables, and support much greater transmission distances compared to copper-based solutions.

Does the Moxa TCF-142-S-ST support different serial communication speeds?

Yes, the TCF-142-S-ST supports flexible serial data rates, capable of handling speeds up to 921.6 kbps. This high data rate ensures efficient communication for various industrial automation applications, allowing for quick data transfer between connected devices.

Can I connect multiple Moxa TCF-142-S-ST units together to extend distances further?

While each TCF-142-S-ST unit extends the distance by up to 40 km, you can create longer communication links by daisy-chaining multiple converters. This approach is effective for extremely long distances where a single run of fiber is not feasible, maintaining signal integrity across each segment.

What troubleshooting steps should I take if communication fails with the TCF-142-S-ST?

Begin by verifying all physical connections, including serial wiring and fiber optic cable integrity. Check the DIP switch settings to ensure they match your desired serial protocol and baud rate. Also, confirm that both ends of the fiber link are clean and properly connected to compatible devices.

How does the TCF-142-S-ST contribute to IIoT integration in industrial settings?

By providing a reliable, long-distance communication bridge for legacy serial devices to modern fiber optic networks, the TCF-142-S-ST facilitates the integration of older equipment into IIoT platforms. This allows for remote monitoring and data collection from previously isolated systems, enhancing overall operational visibility and efficiency.