Moxa IMC-21-M-SC 100M Multi-mode SC Industrial Media Converter

The Moxa IMC-21-M-SC is a robust 100M multi-mode industrial media converter designed for reliable network extension in harsh environments. It provides a seamless bridge between copper Ethernet and multi-mode fiber optic cabling, crucial for extending network reach and enhancing signal integrity over longer distances. Key technical specifications include its support for 10/100BaseTX (RJ45) and 100BaseFX (SC) interfaces, operating temperatures from -40 to 75°C, and dual redundant power inputs (12/24/48 VDC). The converter's compact form factor and DIN-rail mounting capabilities simplify installation in industrial control cabinets.

Product Specifications

| Feature             | Specification                               |

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

| Ethernet Ports      | 1 x 10/100BaseTX (RJ45)                     |

| Fiber Ports         | 1 x 100BaseFX (SC connector, multi-mode)    |

| Fiber Wavelength    | 1310 nm                                     |

| Fiber Distance      | Up to 2 km                                  |

| Power Input         | 12/24/48 VDC, redundant power inputs        |

| Power Consumption   | Max. 2.16 W                                 |

| Operating Temperature | -40 to 75°C                                 |

| Mounting            | DIN-rail                                    |

| Dimensions          | 34 x 135 x 105 mm                           |

| Certifications      | FCC, CE, UL, Class I Div 2/ATEX (optional)  |

Core Features & Market Positioning

The Moxa IMC-21-M-SC distinguishes itself through its industrial-grade resilience and straightforward functionality. Its ability to convert between copper and multi-mode fiber makes it an ideal solution for extending Ethernet networks beyond the typical 100-meter copper limitation, especially in environments where electromagnetic interference (EMI) is a concern. Unlike standard commercial media converters, the IMC-21-M-SC is built to withstand extreme temperatures, vibration, and shock, ensuring continuous operation in factories, transportation systems, and outdoor applications. This ruggedness, combined with Moxa's reputation for reliability, positions it as a preferred choice for critical infrastructure networking. The SC connector type is widely adopted for its secure and robust physical connection in industrial settings.

Key Application Scenarios

The versatility of the Moxa IMC-21-M-SC 100M Multi-mode SC Industrial Media Converter makes it indispensable in numerous industrial automation and control scenarios. It is frequently deployed in manufacturing plants to connect disparate control systems, sensors, and Human-Machine Interfaces (HMIs) across various production lines, overcoming distance limitations and electrical noise. In the oil and gas sector, it facilitates reliable communication in hazardous areas by extending fiber optic networks to remote equipment. Furthermore, its application extends to intelligent transportation systems for traffic control and surveillance, as well as in utility substations for secure data transmission between control centers and field devices.

Practical System Integration Guidance

Integrating the Moxa IMC-21-M-SC into an industrial network is a streamlined process. Begin by securing the converter to a standard DIN-rail within a control panel. Connect the 10/100BaseTX Ethernet device to the RJ45 port using standard Cat5e or higher Ethernet cabling. For the fiber optic connection, ensure you are using multi-mode fiber optic patch cords terminated with SC connectors; connect these to the SC port on the IMC-21-M-SC and the corresponding fiber interface on the remote device or switch. Power the converter using the dual redundant DC power inputs, ensuring the voltage supply is within the specified range of 12/24/48 VDC. Verify power status via the LED indicators.

Operation and Risk Mitigation

Operating the Moxa IMC-21-M-SC requires minimal configuration, primarily focused on ensuring correct physical connections and power supply. Its auto-negotiation feature for the Ethernet port simplifies setup, automatically detecting speed and duplex mode. Potential operational risks are largely mitigated by its inherent industrial design, including a wide operating temperature range and surge protection. To prevent faults, always use appropriately rated power supplies and ensure fiber optic connections are clean and secure to avoid signal degradation. In case of connection issues, verify both copper and fiber cable integrity and examine the status LEDs for link and power indications.

Scalability & Long-Term Value

The Moxa IMC-21-M-SC offers excellent long-term value through its inherent scalability and compatibility. Its straightforward media conversion capability allows for seamless integration into existing Ethernet networks, acting as a fundamental building block for network expansion. By enabling the use of cost-effective multi-mode fiber, it provides a practical and economical way to extend network reach without requiring expensive single-mode fiber infrastructure for shorter distances. This facilitates the incorporation of new devices or entire network segments without a complete overhaul. As industries move towards Industrial Internet of Things (IIoT) and smart manufacturing, reliable and extended network connectivity provided by devices like the IMC-21-M-SC is foundational for data acquisition and real-time communication.

FAQs

What is the maximum distance for the Moxa IMC-21-M-SC multi-mode fiber?

The IMC-21-M-SC supports multi-mode fiber optic connections up to 2 kilometers. This extended reach is crucial for industrial networks. It allows bridging significant distances between devices.

This distance is ideal for factory floors or campus environments. It significantly surpasses standard Ethernet copper limits. The converter ensures reliable data transmission over this range.

Ensure proper fiber optic cable quality for optimal performance. Use multi-mode fiber (e.g., 50/125 µm or 62.5/125 µm). Clean connectors are vital for signal integrity.

Can the Moxa IMC-21-M-SC be used in hazardous locations?

Yes, optional models are available with Class I Div 2 or ATEX certifications. These are designed for use in potentially explosive atmospheres. Always verify the specific model number for certification.

These certifications ensure safety and compliance in hazardous zones. They are critical for industries like oil and gas or chemical processing. Proper installation per certification guidelines is mandatory.

Ensure the chosen model meets the exact hazardous area classification. Follow all safety protocols during installation and operation. Consult the product manual for detailed compliance information.

What type of fiber optic connector does the Moxa IMC-21-M-SC use?

The Moxa IMC-21-M-SC utilizes an SC connector for its multi-mode fiber optic port. SC connectors are a popular choice in industrial environments. They offer a secure and robust physical connection.

This connector type provides good durability and ease of use. It's a standard interface for many fiber optic devices. Ensure your fiber patch cords have matching SC connectors.

When connecting, ensure the SC connector is clean. A secure push-and-latch mechanism ensures the connection is locked. This minimizes the risk of accidental disconnections.

What power input range does the Moxa IMC-21-M-SC support?

The converter supports a wide DC power input range of 12/24/48 VDC. It also features dual redundant power inputs for increased reliability. This redundancy ensures continuous operation if one power source fails.

This broad voltage compatibility makes it flexible for various industrial power systems. The dual input prevents downtime caused by a single power supply issue. Always connect to a stable power source.

Verify the voltage supply before connecting the power cables. Utilize appropriate terminal blocks for secure connections. Redundant power connection is highly recommended for critical applications.

Does the Moxa IMC-21-M-SC support auto-negotiation?

Yes, the RJ45 Ethernet port on the IMC-21-M-SC supports auto-negotiation. This feature automatically detects the connected device's speed and duplex mode. It simplifies network setup and configuration.

Auto-negotiation ensures optimal communication performance without manual intervention. It automatically adjusts to 10 Mbps or 100 Mbps, and half or full duplex. This plug-and-play capability is highly convenient.

For best results, ensure the device connected to the RJ45 port also supports auto-negotiation. This allows for seamless integration and automatic performance optimization. If issues arise, manual configuration can be an alternative.

What is the operating temperature range of the Moxa IMC-21-M-SC?

The IMC-21-M-SC operates reliably within a wide temperature range of -40 to 75°C. This extended range is essential for industrial environments. It ensures consistent performance in extreme conditions.

This broad operating temperature allows deployment in harsh settings. Examples include outdoor enclosures or unconditioned factory spaces. It minimizes the risk of thermal shutdown or performance degradation.

Ensure adequate ventilation for the converter, even within its wide temperature tolerance. Avoid direct sunlight or proximity to high-heat generating equipment. This prolongs the lifespan and reliability of the device.

How is the Moxa IMC-21-M-SC mounted in an industrial panel?

The Moxa IMC-21-M-SC is designed for easy DIN-rail mounting. This is a standard mounting method in industrial control cabinets. It allows for quick and secure installation.

Simply slide the converter onto a standard 35mm DIN-rail. The integrated clips ensure a firm hold against vibration. This method simplifies panel layout and maintenance access.

Ensure the DIN-rail is properly secured within the cabinet. Leave sufficient space around the converter for airflow. This facilitates both installation and future servicing needs.

What is the primary function of the Moxa IMC-21-M-SC?

Its primary function is to convert signals between copper Ethernet and multi-mode fiber optic networks. This bridges the distance limitation of Ethernet. It enhances network reliability by using fiber optics.

This media conversion is key for extending networks. It allows connection of devices located far apart. It also provides immunity to electromagnetic interference.

The converter acts as a crucial link in industrial communication architectures. It enables seamless integration of diverse network segments. It ensures data integrity over longer runs.

Does the Moxa IMC-21-M-SC support 1000 Mbps (Gigabit) speeds?

No, the Moxa IMC-21-M-SC is specifically designed for 100 Mbps Fast Ethernet speeds. It supports 10/100BaseTX on the copper side. The fiber optic port is 100BaseFX.

This converter is optimized for 100 Mbps applications. It is not intended for Gigabit Ethernet transmission. For higher speeds, Moxa offers other industrial media converter models.

If your network requires Gigabit speeds, you will need a different product. Ensure your application's bandwidth requirements match the converter's capabilities. Always check the product datasheet for speed specifications.

What are the advantages of using multi-mode fiber with this converter?

Multi-mode fiber is generally more cost-effective for shorter to medium distances. It is easier to work with compared to single-mode fiber. It offers a good balance of performance and cost for industrial use.

The IMC-21-M-SC's 2 km multi-mode capability is ideal for many factory layouts. It provides sufficient reach for most intra-plant networking needs. It leverages widely available fiber optic infrastructure.

Multi-mode fiber is robust and suitable for industrial environments. Its ease of termination and connection simplifies field installations. It's a practical choice for extending copper Ethernet networks reliably.