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Home Products Industrial Ethernet Switches & Converters Serial Converters RS-232/422/485 Daisy Chain Fibre Converter

RS-232/422/485 Daisy Chain Fibre Converter

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IFC-FDC-E RS-232/422/485 Daisy Chain Fibre Converter

RS-232/422/485 Industrial Fibre ConverterEN61000

The IFC-FDC-E is an industrial grade fibre media converter that provides a dual fibre connection converter solution to extend asynchronous RS-232 or RS-422/485 transmission distance up to 2km over multimode fibre or up to 60km over single mode fibre. The dual fibre inputs allow connecting multiple devices in a cascade or "daisy chain" fashion as well as creating ring architecture for fibre redundancy. The converter is equipped with multiple interface circuits for connection to RS-232 or RS-422/485 (2 or 4 wire, full or half duplex). The IFC-FDC-E secures data transmission over EMI resistant fibre at speeds up to 1024kbps for RS-232 and RS-485/422. The IFC-FDC-E reliable industrial design is suitable for keeping your industrial automation applications running continuously. Each IFC-FDC-E media converter comes with two relay output alarms and two redundant DC power inputs to help prevent damage and loss. The IFC-FDC-E media converter is available in models that support operating temperatures of 0 to 60°C or -40 to 70°C.

RS-232/422/485 Industrial Fibre Converter schematic


  • Extend asynchronous serial transmission from 2km, 30km, 60km over fibre
  • Two fibre ports support daisy chain and ring architecture
  • Multi-drop operation over fibre ring
  • Selectable two wires (half duplex) or four wires (full duplex) RS-485
  • Redundant dual DC power inputs
  • Speeds up to 1024kbps for RS-232 (Async. mode)
  • Speeds up to 1024kbps for RS-485/422
  • 2.5KV isolation for serial signal
  • Power or Optical Fibre failure alarm by relay output
  • Supports DIN-Rail & Wall Mount


Optical Interface:

  • Connector: SC, ST
  • Fibre Optical rate: 36.864Mbps
  • Fibre Port: Two fibre ports
  • Fibre Type : MM 2km, SM 30/60km
  • Wavelength : MM 1310nm, SM 1310, 1550nm
  • Point to Point Transmission : Half or Full duplex
  • Ring Transmission : Half / Full duplex, self-healing operation

Electrical Interface:

  • Serial Port Connector: RS-232(DB9), RS-422/RS-485(5 pin terminal block); RS-485: 4, 2 wires, RS-422 : 4 wires
  • RS-485 direction: RS-485 direction automatically
  • Copper Baud rate: RS-232 : 50 up to 1024Kbps; RS-422/RS-485: 50 up to 1024Kbps
  • Serial Isolation: 2.5KV
  • Surge Protection: 8KV ESD for serial signals
  • Pull High: selected by 10 position rotary switch
  • Pull Low: selected by 10 position rotary switch
  • 120 ohm terminato : Built-in 120 ohm terminator (Option by Dip switch)


  • Operating Temperature: 0°C ~ 60°C, -40°C ~ 70°C (wide temperature for X model)
  • Storage Temperature: -40°C ~ 70°C
  • Humidity: 5 ~ 95% RH

LED Indications: PWR1, PWR2, Alarm, Master, TD, RD, Fibre1 Link, Fibre2 Link, Ring


  • Power Input: 12, 24, 48 VDC (9.6 ~ 58VDC)
  • Power Reversal Protection: Yes
  • Over Current Protection: Signal Short Together Protected
  • Terminal Block: V1+, V1-, V2+, V2-,
  • Alarm: NC, Alarm COM, Alarm NO


  • Water & Dust Proof: IP30 Protection
  • Dimensions: 106 x 38.6 x 142.1mm (D x W x H)
  • Mounting: DIN-Rail, Wall Mount
  • Weight: 0.64 kg

Regulatory Approvals:

  • Safety: UL508
  • Hazardous Location: none
  • EMC: CE, FCC
  • EMI: EN55022 Class A
  • EMS: EN61000-4-2 ESD Level 3; EN61000-4-3 RS Level 3; EN61000-4-4 EFT Level 3; EN61000-4-5 Surge Level 3; EN61000-4-6 CS Level 3
  • Free Fall: IEC 60068-2-32
  • Vibration: IEC 60068-2-6
  • Shock: IEC 60068-2-27
  • Green: RoHS
  • MTBF: 300,000 Hrs


RS-232/422/485 Industrial Fibre Converter


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Live Demo of FRM220 Chassis

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