General
Transmission distance	40 km / 80 km
Wavelength	1310/1550 nm
Dispersion penalty	1 dB
Air humidity	5–95 % (nicht kondensierend)

The IMC-101-S-SC-T from Moxa is an industrial media converter that converts Ethernet signals in the 10/100BaseT(X) standard via an RJ45 network port into fiber optic signals in the 100BaseFX format. It is specifically designed for use in smoke- and shock-loaded industrial environments as well as in hazardous areas, with certifications Class 1 Div. 2, ATEX Zone 2 and IECEx confirming its suitability for such environments. The device features a robust metal housing construction with protection rating IP30, protecting it against mechanical impacts and limited dust and splash water ingress. Mounting is done via a DIN rail, enabling flexible and standardized installation in enclosures. The operating temperature of the -T model ranges from -40 °C to 75 °C, allowing use in extreme climatic conditions, for example in the oil and gas industry or in marine applications. Certification according to DNV confirms suitability for marine applications.

Applications

The converter is suitable for critical networks in factory automation, power supply, oil and gas industry, and marine applications. High reliability is ensured by a 100 % burn-in test, which each device undergoes before shipment. The integrated Link Fault Pass-Through (LFPT) function enables fast fault diagnosis by forwarding the Ethernet signal in case of a fiber optic connection failure, minimizing network outages.

Functions and Equipment in Detail

The converter supports automatic MDI/MDI-X detection, enabling cabling between switches, routers or other devices without additional crossover cables. Power supply is via a terminal block with screw clamp and is designed for an input voltage of 12 to 45 VDC. Power consumption is 200 mA, and an overcurrent protection is integrated. Redundant power supply increases device availability in critical applications.

Technology Explained Simply

The fiber optic interface of the IMC-101-S-SC-T uses a single-mode SC connector and enables transmission distances of up to 80 km, depending on configuration. Wavelengths are 1310 nm and 1550 nm, ensuring long distances and low attenuation. Optical characteristics include a transmit power (TX) of 0 to -5 dBm and a receive sensitivity (RX) of -3 to -34 dBm. The link budget is 29 dB, ensuring high signal integrity over long distances. An attenuator is recommended for single-mode applications to optimize signal quality. The dispersion penalty is 1 dB, stabilizing signal transmission over long fiber optic distances.

Compatibility and Accessories

The converter is compatible with standard Ethernet networks and can be integrated into existing infrastructures. Certifications according to EN 55032/24, FCC Part 15B, CISPR 32, IEC 61000-4-2 to -4-11, EN 60950-1, UL 60950-1 as well as IEC 60068-2-1/2/3/6 guarantee electromagnetic compatibility, safety and mechanical robustness.

Mounting and Installation

Mounting is done via a DIN rail, enabling quick and secure installation in enclosures. Dimensions are 53.6 mm (width) × 135 mm (height) × 105 mm (depth), and the device weighs 630 g. Installation requires no special tools, and power supply is via the terminal block. The operating temperature of -40 °C to 75 °C generally requires no additional cooling.

Operational Advantages

The high MTBF of 401,000 hours (according to MIL-HDBK-217F) demonstrates the high service life and reliability of the device. The integrated LFPT function and automatic MDI/MDI-X detection reduce maintenance requirements. Certifications for hazardous areas and marine certification extend the application range in demanding environments. The 5-year manufacturer's warranty provides additional security for operation.

Scope of Delivery

The scope of delivery includes the IMC-101 media converter, a quick start guide, and a warranty card.