Moxa ICF-1150I-S-ST content_copy

The ICF-1150I-S-ST from Moxa is an industrial media converter that converts serial signals (RS-232, RS-422, RS-485) into optical signals for multimode fiber optic transmission. The device is designed for reliable data transmission over long distances in harsh industrial environments where mechanical stress, electromagnetic interference, or high temperature fluctuations may occur. It is intended for use in automation systems, power supply, transportation sector, and similar applications where reliable communication between devices is required.

Applications
This converter is suitable for applications where serial devices need to be connected via fiber optic cables to avoid interference in copper cables or to extend transmission range. Typical use cases include connecting control devices, sensors, frequency converters, or industrial PCs over long distances, especially in factories, power plants, or transportation systems. Support for multiple serial standards (RS-232, RS-422, RS-485) enables integration of various devices using different interfaces.

Features and Equipment in Detail
The ICF-1150I-S-ST features two serial ports connected via a 5-pin terminal block. Supported baud rates range from 50 bps to 921.6 kbps, including non-standard speeds. Flow control is achieved via ADDC (automatic data direction control), which is particularly useful in RS-485 applications to prevent data loss. Galvanic isolation of 2 kV protects the device and connected end devices from voltage spikes and potential differences. For RS-485, various pull resistors (150 kΩ to 485 Ω) and terminator resistors (120 Ω, 120 kΩ) are available to ensure signal integrity in different networks.

Technology Explained Simply
The conversion of serial signals into optical signals is performed by an integrated transceiver that transforms electrical data into light pulses transmitted over a multimode fiber optic cable. The optical output is equipped with an ST connector, suitable for connection to standard fiber optic cables. Using fiber optic offers advantages such as high immunity to interference, low attenuation over long distances, and immunity to electromagnetic fields. Power supply is via a terminal block with a voltage range of 12 to 48 VDC, including integrated overcurrent protection to safeguard the device.

Compatibility and Accessories
The converter is compatible with devices supporting RS-232, RS-422, or RS-485 interfaces. Connection is made via a multimode fiber optic cable with an ST connector. Configuration is done via hardware settings on the device, where pull and terminator resistors can be manually selected according to application requirements.

Mounting and Installation
The device is mounted on a DIN rail, enabling flexible installation in enclosures or control cabinets. The housing is made of metal, providing mechanical stability. The protection class IP30 protects against finger contact and larger solid objects, but not against water or dust. Mounting requires no special tools, although correct wiring of the serial interface and power connection is necessary.

Operational Advantages
The ICF-1150I-S-ST offers high operational reliability due to galvanic isolation and robust construction. The operating temperature range of 0 to 60 °C makes it suitable for many industrial environments. The long MTBF of 792,085 hours (according to Telcordia, GB) indicates high reliability. Certifications according to EN 55032/35, CISPR 32, FCC Part 15B Class A, and IEC 61000-4-2 to -4-8 ensure EMC compliance. Safety certification UL 61010-2-201 and classification for hazardous areas (UL/cUL Class I Division 2, ATEX Zone 2) extend its use in potentially explosive environments. The 5-year manufacturer's warranty underscores the product's quality.

Certifications and Environmental Conditions
The device meets EMC requirements according to EN 55032/35 and CISPR 32, as well as EMI standard FCC Part 15B Class A. EMS tests according to IEC 61000-4-2 to -4-8 ensure robustness against electromagnetic interference. Safety standard UL 61010-2-201 and approval for hazardous areas (UL/cUL Class I Division 2, ATEX Zone 2) extend its use in sensitive environments. Environmental tests according to IEC 60068-2-1, -2, -3 and vibration tests according to IEC 60068-2-6 confirm mechanical durability. The operating temperature range is 0 to 60 °C, and the storage temperature range is -40 to 85 °C. Relative humidity is 5 to 95 % (non-condensing).

General
Supported serial standards	RS-232, RS-422, RS-485
RS-485 pull 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 resistors	N/A, 120 Ω, 120 kΩ
EMC certification	EN 55032/35

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