General
Number of serial ports	2
RS-485 resistors	150 kΩ, 10 kΩ, 4.7 kΩ, 3.3 kΩ, 1 kΩ, 909 Ω, 822 Ω, 770 Ω, 500 Ω, 485 Ω
RS-485 terminator	N/A, 120 Ω, 120 kΩ
Air humidity	5–95 % (nicht kondensierend)
MTBF	792.085 Stunden (nach Telcordia)

The ICF-1150I-M-SC-T from Moxa is an industrial media converter that converts serial interfaces (RS-232/422/485) into multimode fiber optic. It is designed for secure and noise-resistant data transmission in industrial environments where high electromagnetic compatibility and galvanic isolation are required. With an SC fiber optic connector and 2-kV isolation, it is designed for harsh operating conditions. The automatic data direction control (ADDC) simplifies setup for RS-485 connections, as no manual configuration of data direction is required.

Applications
This converter is designed for use in industrial facilities, enclosures, and outdoor applications, particularly in climate zones with extreme temperatures. It is suitable for connecting industrial controls, sensors, actuators, and other devices communicating via serial interfaces to fiber optic networks. The extended operating temperature of -40 to +85 °C enables use in cold storage rooms, hot production halls, or outdoors.

Functions and Equipment in Detail
The ICF-1150I-M-SC-T features two serial ports supporting the standards RS-232, RS-422, and RS-485 (2- and 4-wire). The baud rate can be set between 50 bps and 921.6 kbps, including non-standard transmission rates. Serial connections are made via a 5-pin terminal block, while the fiber optic connection uses an SC connector. The galvanic isolation of 2 kV protects connected devices from voltage surges and potential differences.

Technology Explained Simply
The automatic data direction control (ADDC) automatically detects data direction in RS-485 connections, simplifying configuration. The RS-485 resistors are selectable and include values such as 150 kΩ, 10 kΩ, 4.7 kΩ, 3.3 kΩ, 1 kΩ, 909 Ω, 822 Ω, 770 Ω, 500 Ω, and 485 Ω, as well as terminator options like 120 Ω and 120 kΩ. Signal assignment is standardized: RS-232 (TxD, RxD, GND), RS-422 (Tx+, Tx-, Rx+, Rx-, GND), RS-485-4w (Tx+, Tx-, Rx+, Rx-, GND), and RS-485-2w (Data+, Data-, GND). Power supply is via 12 to 48 VDC, with a maximum current draw of 300 mA. Connection is made via a terminal block, and reverse polarity and overcurrent protection are integrated.

Compatibility and Accessories
The converter is designed for use with multimode fiber optic cables with SC connectors. It is compatible with devices supporting serial interfaces according to RS-232, RS-422, or RS-485. DIN rail mounting enables easy integration into existing enclosures.

Mounting and Installation
The device is mounted on a DIN rail, enabling space-saving and stable installation in enclosures. The metal housing provides mechanical protection and improves electromagnetic shielding. Mounting requires no special tools, as the DIN rail is standardized. Power supply is via the terminal block, with reverse polarity protection ensuring safe operation.

Operational Advantages
The ICF-1150I-M-SC-T offers high noise immunity due to galvanic isolation and EMC certifications (EN 55032/35, CISPR 32, FCC Part 15B Class A). The extended temperature stability and robust construction ensure reliable performance in demanding environments. The MTBF (Mean Time Between Failures) is 792,085 hours according to Telcordia, indicating high operational reliability. The 5-year warranty underscores the device’s reliability.

Certifications and Environmental Conditions
The device complies with EMC standards EN 55032/35, CISPR 32, and FCC Part 15B Class A. It is also certified for electromagnetic immunity according to IEC 61000-4-2 to -4-8. Safety standard UL 61000-2-201 and environmental tests according to IEC 60068-2-1/-2/-3 are fulfilled. For hazardous explosive areas, it is certified with UL/cUL Class I Div. 2 Groups A/B/C/D and ATEX Zone 2. Vibration tests are performed according to IEC 60068-2-6. The operating temperature ranges from -40 to +85 °C, with humidity levels of 5–95 % (non-condensing). The protection rating is IP30.

Housing and Mounting
The device has a metal housing with dimensions 30.3 × 70 × 115 mm and weighs 330 g. Mounting is via a DIN rail, enabling easy integration into existing enclosures. The IP30 protection rating safeguards against finger contact and solid foreign objects, but not against water or dust.