Ci-MF110/MF120 series

Modbus Plus Fiber Optic Converter

Provide 1-channel Modbus Plus fieldbus, communication rate 1Mbps
Support 1~2 Fiber Optic Ports, ST connector ( SC, FC Optional)
Support fiber link monitoring and alarm function
Input voltage: 18~36VDC, Dual redundant power input with 1500V high voltage isolation
IP40 protection, Metal case, 35mm DIN-Rail Mounting
Operating Temperature: -40℃ to 75℃ suitable to various Industrial work situation
Overview Specifications Models Resources

Overview of Modbus Plus Fiber Optic Converter

Ci-MF110/MF120 series is designed for industrial serial to fiber converter which supports transparent transmission for Modbus Plus protocol. This series provides a fiber converter solution to extend transmission distance up to 2KM over multi-mode fiber or 20KM over single-mode fiber. It secures data transmission over EMI resistant fiber at speeds up to 1Mbps. The dual fiber inputs allow connecting multiple devices in a cascade or Daisy-chain topology for fiber redundancy.
Additionally, this series converter provides a fiber link monitoring function to detect the communication errors on both sides of the fiber connection. When a communication error occurs, a red LED status indicator will turn on and the alarm relay contact on the terminal block will activate.
Hardware adopts DIN rail mounting, IP40 metal case, wide temperature and voltage design and has passed rigorous industrial standard tests, which can suit for the industrial scene environment with harsh requirements for EMC. It can be widely used in various situations like industrial control, process control, traffic control and intelligent residential district, and particularly applicable to bank, electricity, departments and systems that have special requirements relating to electromagnetic interference environment.

Specifications of Modbus Plus Fiber Optic Converter

Serial Port

Compatible with Modbus Plus DB9-F connector

Accord with Modbus Plus field bus protocol, communication rate is 1Mbps

Terminating Resistor: The unit has 120 ohms, use corresponding switch to make it to be enable

 Fiber Port

            Wave length: multi-mode 850nm/1310 nm;  single mode 1310 nm/1550nm
            Fiber type: multi-mode 50/125um, 62.5/125um, 100/140um; single mode 8.3/125 um, 9/125um, 10/125um
            Transmission distance: multi-mode 2km, single mode 20km
            Fiber interface type: ST/SC/FC (optional); ST (standard configuration)
          Single Fiber wavelength:
          A: Transmit wavelength is single mode 1310nm, then Receive wavelength is 1550nm
          B: Transmit wavelength is single mode 1550nm, then Receive wavelength is 1310nm

    Power Supply
    DC (18~36V) dual redundant power input (can be customized with 9~18VDC)
    Industrial standard voltage DC 24V, consumption is less than 1.5W
        DC 1500V voltage isolation and reverse connect protection
        5.08mm industrial terminal port

        Relay: Fiber link fault alarm
      Contact rating: 1A @24V DC, Industrial Terminal port

        Dimensions (H×D×W): 136mm×104.8mm×52.8mm
        Weight: 800g
        Casing: IP40 protection, wave grain aluminum reinforce case option
      Installation: Wall mounting or DIN rail mounting
        Operating Temperature: -40℃~75℃(-40℃~85℃ optional)
        Storage Temperature:  -40℃~85℃
      Ambient Relative Humidity: 5%~95%(non-condensing)
      5 years

    Models of Modbus Plus Fiber Optic Converter

    Available Models

    100M Fiber Port

    Fiber Mode / Distance



    Multi-Mode / 2KM



    Multi-Mode / 2KM



    Single mode / 20KM



    Single mode / 20KM





      Ci-MF110/MF120 Series Datasheet 



     Ci-MF110/MF120 Series Quick Installation Guide