ICF-1150 Series

Features and Benefits

  • 3-way communication: RS-232, RS-422/485, and fiber
  • Rotary switch to change the pull high/low resistor value
  • Extends RS-232/422/485 transmission up to 40 km with single-mode or 5 km with multi-mode
  • -40 to 85°C wide-temperature range models available
  • C1D2, ATEX, and IECEx certified for harsh industrial environments


Download Datasheet

The ICF-1150 serial-to-fiber converters transfer RS-232/RS-422/RS-485 signals to optical fiber ports to enhance transmission distance. When an ICF-1150 device receives data from any serial port, it sends the data through the optical fiber ports. These products not only support single-mode and multi-mode fiber for different transmission distances, models with isolation protection are also available to enhance noise immunity. The ICF-1150 products feature Three-Way Communication and a Rotary Switch for setting the pull high/low resistor for onsite installation.

Three-Way Communication
The ICF-1150 Series supports 2 serial ports, with a DB9 connector for RS-232 communication and a removable terminal block for RS-422 or RS-485 communication. The 3 ports (2 serial ports and one fiber port) are completely independent. When an ICF-1150 converter receives data from any one port, it will send the data through the other 2 ports. For example, once the ICF-1150 converter receives a command from the remote master through the fiber port, it will convert the signal and send the command through the RS-232 and RS-422/485 ports at the same time. If the user is monitoring a system running on an RS-485 network, there is no need to use an additional RS-232 to RS-485 converter to connect the laptop computer’s serial port to the RS-485 bus.

Rotary Switch for Setting the Pull High/Low Resistor
The RS-485 interface supports multidrop or daisy-chain connections, which system engineers will use to connect serial devices such as meters, RTUs, and readers, together on the same bus. Since the number of serial devices on the same bus will cause the impedance of the data line to increase, the ICF-1150 allows users to tune the pull high/low resistor. Just rotate the switch to the appropriate value without removing the ICF-1150 from the DIN rail.


Serial Inteface
Connector DB9 male for RS-232 interface
5-pin terminal block for RS-422/485 interface
Fiber ports for RS-232/422/485 interface
No. of Ports 2
Serial Standard RS-232, RS-422, RS-485
Flow Control ADDC® (automatic data direction control) for RS-485
Baudrate 50 bps to 921.6 kbps (supports non-standard baudrates)
Isolation 2 kV (I models)
Optical Fiber
Low-Speed Fiber Module Multi-Mode Single-Mode
Fiber Cable Requirements 50/125 µm, 800 MHz G.652
62.5/125 µm, 500 MHz
Typical Distance 5 km 40 km
Wavelength Typical (nm) 850 1310
TX Range (nm) 840 to 860 1290 to 1330
RX Range (nm) 800 to 900 1100 to 1650
Optical Power TX Range (dBm) 0 to -8 0 to -8
RX Range (dBm) 0 to -25 0 to -25
Link Budget (dB) 15 20
Dispersion Penalty (dB) 1 1
Note: When using a power meter to measure the fiber TX power, set the baudrate to 9,600 bps and send data (00, …, 0h) to the serial converter’s serial port.
Pull High/Low Resistor for RS-485 150 kilo-ohm, 10 kilo-ohm, 4.7 kilo-ohm, 3.3 kilo-ohm, 1 kilo-ohm, 909 ohm, 822 ohm, 770 ohm, 500 ohm, 485 ohm
RS-485 Data Direction Control ADDC® (automatic data direction control)
Terminator for RS-485 N/A, 120 ohms, 120 kilo-ohms
Serial Signals
RS-422 Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w Data+, Data-, GND
Power Parameters
Input Current ICF-1150 Series: 264 mA @ 12 to 48 VDC
ICF-1150I Series: 300 mA @ 12 to 48 VDC
Input Voltage 12 to 48 VDC
No. of Power Inputs 1
Overload Current Protection Supported
Power Connector Terminal Block
Power Consumption ICF-1150 Series: 264 mA @ 12 to 48 VDC
ICF-1150I Series: 300 mA @ 12 to 48 VDC
Physical Characteristics
Housing Metal
IP Rating IP30
Dimensions 30.3 x 70 x 115 mm (1.19 x 2.76 x 4.53 in)
Weight 330 g (0.73 lb)
Installation DIN-rail mounting
Environmental Limits
Operating Temperature Standard Models: 0 to 60°C (32 to 140°F)
Wide Temp. Models: -40 to 85°C (-40 to 185°F)
Storage Temperature (package included) -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Standard and Cerifications
EMC EN 55032/24
EMI CISPR 32, FCC Part 15B Class A
EMS EC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
IEC 61000-4-4 EFT: Power: 4 kV; Signal: 2 kV
IEC 61000-4-5 Surge: Power: 4 kV; Signal: 1 kV
IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m
IEC 61000-4-8 PFMF
Environmental Testing IEC 60068-2-1
IEC 60068-2-2
IEC 60068-2-3
Safety EN 60950-1, IEC 60950-1
Vibration IEC 60068-2-6
Hazardous Locations Standard models: UL/cUL Class I Division 2 Groups A/B/C/D
-IEX models: UL/cUL Class I Division 2 Groups A/B/C/D, ATEX Zone 2, IECEx
Time 792,085 hrs
Standards Telcordia (Bellcore), GB
Warranty Period 5 years
Details See www.moxa.com/warranty