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Moxa IMC-21-M-ST Industrial 10/100Baset(X) To 100Basefx Media Converter, Multi Mode Sc Fiber Connector

The Moxa IMC-21-M-ST is a robust industrial media converter designed to seamlessly bridge 10/100BaseT(X) Ethernet to 100BaseFX fiber networks. Engineered for demanding environments, it features a multi-mode SC fiber connector, ensuring reliable high-speed data transfer over extended distances. Its compact design is optimized for space-constrained installations, while its rugged metal housing guarantees durability and longevity in harsh industrial conditions. The IMC-21-M-ST ensures stable and secure network connections, making it ideal for critical communications infrastructure.

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Moxa IMC-21-M-ST Industrial 10/100Baset(X) To 100Basefx Media Converter, Multi Mode Sc Fiber Connector


  • Provides media conversion between 10/100BaseT(X) and 100BaseFX networks.
  • Multi-mode SC fiber connector for flexible network setups.
  • Robust industrial-grade design with a wide operating temperature range.
  • Supports IEEE 802.3/802.3u/802.3x standards.
  • Auto-negotiation for 10/100Mbps and half/full-duplex modes.
  • Link Fault Pass-Through (LFP) function for easy troubleshooting.
  • Supports power input from 12 to 48 VDC, with redundancy and reverse polarity protection.
  • DIN-rail or wall-mountable installation options.

Technical Specifications

  • Standards: IEEE 802.3, 802.3u, 802.3x
  • Fiber Connector Type: SC
  • Fiber Mode: Multi-mode
  • Transmission Distance: Up to 5 km (multi-mode fiber)
  • Wavelength: 1310 nm
  • TX Ports: 1 x 10/100BaseT(X) auto negotiation speed, Auto MDI/MDI-X
  • FX Ports: 1 x 100BaseFX (SC connector)
  • Input Voltage: 12 to 48 VDC (external power supply)
  • Power Consumption: Maximum 4.08 W
  • Operating Temperature: -10°C to 60°C (14°F to 140°F)
  • Storage Temperature: -40°C to 75°C (-40°F to 167°F)
  • Operating Humidity: 5% to 95% (non-condensing)
  • Mounting: DIN-rail or wall mount
  • Dimensions: 30 x 70 x 115 mm (1.18 x 2.75 x 4.53 in)
  • Weight: 135 g (0.29 lb)

Frequent Ask Questions

  • What is the Moxa IMC-21-M-ST media converter?

    The Moxa IMC-21-M-ST is an industrial media converter that allows for the conversion between 10/100BaseT(X) Ethernet and 100BaseFX fiber optic signals. It uses multi-mode SC fiber connectors which are suitable for various industrial networking applications.

  • What is the function of the SC fiber connector?

    The SC fiber connector on the Moxa IMC-21-M-ST allows the device to interface with fiber-optic cables, enabling data transmission over longer distances as compared to copper Ethernet cables. The multi-mode functionality supports a broader range of medium distances in industrial environments.

  • Is the Moxa IMC-21-M-ST suitable for harsh industrial environments?

    Yes, the Moxa IMC-21-M-ST is designed to operate reliably in harsh industrial environments. It features robust construction and industrial-grade components, ensuring reliable performance under challenging conditions such as extreme temperatures and high vibration or shock.

  • What type of power supply does the Moxa IMC-21-M-ST require?

    The Moxa IMC-21-M-ST requires a DC power supply. Typically, this unit can be powered using a voltage input range of 12 to 48 VDC, making it adaptable to various industrial power systems.

  • What are the typical applications for the Moxa IMC-21-M-ST?

    The Moxa IMC-21-M-ST can be used in a variety of industrial applications including factory automation, outdoor monitoring systems, building automation, and anywhere requiring the extension of Ethernet networks over fiber optic cables to achieve longer distance communication.

  • How do I install the Moxa IMC-21-M-ST media converter?

    Installation is straightforward. The media converter can be mounted on a DIN rail or in a control cabinet. Connect the Ethernet cable to the RJ45 port and the fiber optic cable to the SC port. Power the device using the appropriate DC power source.

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Warranty Benefits You Can Count On:

When you purchase from us, rest assured that your items (excluding software) are protected under a robust 12-month warranty. Should your goods cease to function as promised within this period due to no fault of your own, we'll make it right by either repairing or replacing them. Our commitment ensures you might receive a refurbished or equivalent replacement, always meeting or exceeding the original specifications.

Our Promise of Quality:

While we stand behind the excellent quality and performance of our goods, please note that our warranty primarily covers operational defects. We aim for transparency and fairness in our warranty provisions, without making broader claims about the general durability or suitability for unintended purposes.

Comprehensive Protection:

Even under rigorous legal frameworks like the Competition and Consumer Act 2010, our warranty remains robust. We limit our liability for any breaches, ensuring that remedies might include replacement, repair, or appropriate compensation, whether you've bought products or services.

Flexible Returns for Your Convenience:

Changed your mind? No problem! Returns are easy with our consent—just be mindful of a 15% handling and restocking fee. Remember, all transportation costs are covered by you, ensuring a smooth and transparent process. Unauthorised returns aren't eligible for credit but rest easy knowing we will handle your items responsibly, even using them as security until any outstanding payments are settled.

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Each clause of our warranty and return policies is designed to protect your interests while ensuring the highest standards of service and reliability from us. Shop with confidence knowing that we're committed to your satisfaction and peace of mind.



Delivery Information

At our company, we’re committed to making your delivery experience as smooth and hassle-free as possible. Here’s how we ensure your satisfaction:

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We’ll deliver your order right to your premises. For your convenience, all transportation and freight charges are clearly outlined and payable within our easy payment terms.

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We strive to deliver your products promptly. While we aim to provide accurate delivery dates, we ask for your understanding that these dates are estimates. Rest assured, if no specific date is given, we’ll get your order to you as soon as we can.

Peace of Mind During Transit:

We take every precaution to ensure your goods arrive safely. In the rare event that something goes wrong during transit, please note that the carrier acts on your behalf, even if we arranged the delivery.

Quick Resolution for Delivery Issues:

If there’s an issue with your delivery, such as missing items, simply notify us in writing within 7 days. We’re here to help and will address any concerns promptly. After this period, we’ll consider the delivery accepted and complete.

Handling Unforeseen Delays:

Life happens, and sometimes unexpected events like strikes, machinery failures, or other external factors can delay your order. If such situations arise, we’ll work with you to either cancel the order with your consent or complete the delivery as soon as possible.

We’re dedicated to providing you with excellent service and timely deliveries. If you have any questions or need assistance, our friendly team is always here to help!

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