Ci-UF110/UF120 series

DH485 / CC-link / BACnet / Interbus / CS31 Fiber Optic Converter

Support RS-232/485/422 Ports
Support 1~2 Fiber Optic Ports, ST connector ( SC, FC Optional)
Support Optical Fiber link failure and power error alarm LED indication
Support CC-link/BACnet/Interbus/CS31/DH485 Fieldbus to Fiber optic converter
Input voltage: 18~36VDC, Dual redundant power input with 1500V high voltage isolation
IP40 protection, Metal case, 35mm DIN-Rail Mounting
Support -40~75℃ wide operating temperature range
Overview Specifications Models Resources

Overview of DH485 / CC-link / BACnet / Interbus / CS31 Fiber Optic Converter

Ci-UF110/UF120 series provides a fiber converter solution to extend RS-232 or RS-422/RS-485 transmission distance up to 2KM over Multi-mode fiber and 20KM over Single-mode fiber . The converter secures data transmission over EMI resistant fiber at speeds up to 115.2Kbps for RS-232 or up to 10Mbps for RS-485/422. 

Ci-UF110/UF120 series is designed for industrial grade serial to fiber converter which supports transparent transmission for H485 / CC-link / BACnet / Interbus / CS31 protocols. The dual fiber inputs allow connecting multiple devices in a cascade or Daisy-chain topology for fiber redundancy. 

Additionally, Ci-UF110/UF120 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 DH485 / CC-link / BACnet / Interbus / CS31 Fiber Optic Converter

Serial Port
          Support for CC-link/BACnet/Interbus/CS31/DH485 serial communication based on RS-232/485
          RS-232 baudrate: 0~115.2Kbps, support RXD, TXD, GND three line mode
          RS-422 full-duplex mode
          RS-485 half-duplex mode
          RS-485/422 baudrate: 0~10Mbps optional
          Terminating Resistor: The unit has 220 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, 2.5/125um, 100/140um; single mode 8.3/125um, 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

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 DH485 / CC-link / BACnet / Interbus / CS31 Fiber Optic Converter

Available Models

100M Fiber Port

Fiber Mode / Distance



Multi-Mode / 2KM



Single mode / 20KM



Multi-Mode / 2KM



Single mode / 20KM





  Ci-UF110/UF120 Series Datasheet 



 Ci-UF110/UF120 Series Quick Installation Guide