Moxa IMC-101-M-ST-T-IEX – IECEx certification approval content_copy

The IMC-101-M-ST-T-IEX from Moxa is an industrial media converter that converts copper-based 10/100BaseT(X) Ethernet signals into optical 100BaseFX connections via multi-mode ST connectors. The device is designed for use in demanding industrial environments where high reliability, mechanical robustness, and protection against electrical interference are required. It features an extended operating temperature range of -40 to 75 °C and is certified for use in hazardous areas, making it suitable for applications in process industries, mining, or power generation.

Applications
This media converter is suitable for industrial networks where a connection between copper cables (e.g. Cat5e/6) and fiber optic cables is required. This is particularly necessary when long distances need to be bridged, beyond the reach of copper cables, or when electromagnetic isolation between network segments is desired. Certifications for hazardous areas (ATEX, IECEx, UL/cUL) allow use in environments with increased explosion risk, such as refineries or chemical plants.

Functions and Features in Detail
The device includes an RJ45 port for copper connection and an ST connector for fiber optic. The integrated magnetic isolation with 1.5 kV protects against electrical interference and enables galvanic separation between network segments. This reduces the risk of voltage surges and improves signal integrity. Power supply is via a terminal block with an input voltage range of 12 to 45 VDC, including integrated overcurrent protection. Power consumption is 200 mA within the specified voltage range.

Technology Explained Simply
The conversion of copper to fiber optic signals is performed by an integrated transceiver that converts electrical signals into light pulses and vice versa. The use of multi-mode fiber optic via ST connectors enables a cost-effective and reliable connection over medium distances. The protection rating IP30 ensures protection against solid foreign objects and splashing water, but not against dust or prolonged moisture. The metal housing provides additional mechanical protection and supports heat dissipation.

Compatibility and Accessories
The converter is compatible with standard Ethernet networks and can be integrated into existing infrastructures. The use of multi-mode fiber optic requires corresponding cables and connectors. For operation in hazardous areas, compliance with the respective certifications (ATEX, IECEx, UL/cUL) is essential. The marine certification according to DNV also makes the device suitable for use on ships.

Mounting and Installation
The IMC-101-M-ST-T-IEX is mounted on a DIN rail, enabling flexible and standardized installation in enclosures. Mounting requires no additional tools, as the device features an integrated clamp holder. Power supply is via a terminal block connected to the appropriate voltage source.

Operational Advantages
The high mean time between failures (MTBF) of 401,000 hours according to MIL-HDBK-217F demonstrates the device's reliability. The robust metal construction and compliance with strict EMC standards (e.g. EN 55032/24, CISPR 32, FCC Part 15B Class A) ensure stable performance even under difficult conditions. Certifications for hazardous areas expand the range of applications and reduce the need for additional protective measures.

Standards and Certifications
The device complies with numerous international standards, including EMC and EMI directives, as well as tests for electromagnetic immunity (ESD, RS, EFT, Surge, CS, PFMF, voltage dips). Safety standards EN 60950-1 and UL 60950-1, along with environmental tests according to IEC 60068-2-1/-2/-3 and vibration tests according to IEC 60068-2-6 guarantee reliability under real operating conditions. The warranty period is 5 years.

General
Power consumption	200 mA @ 12–45 VDC
EMC	EN 55032/24
MTBF	401.000 Stunden

---