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Unmanaged FE Converter

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Unmanaged 10/100Base-TX to 100Base-FX FE Converter

10/100Base-TX to 100Base-FX FE Converter

The IMC-100 is a family of Fast Ethernet non-managed media converters that support conversion between electrical 10/100Base-TX and optical 100Base-FX Ethernet. Simple DIP switch settings allow configuring the UTP port for auto-negotiation or for forced 10/100 speed and half/full duplex as well as for enabling LFPT (Link Fault Pass Through), Ethernet flow control(802.3x) and selecting Switch Mode (store & forward) or Converter Mode (Jumbo frame Pass-through). Housed in rugged DIN rail or wall mountable enclosures, these converters are designed for harsh environments, such as industrial networking and intelligent transportation systems (ITS) and are also suitable for many military and utility market applications where environmental conditions exceed commercial product specifications.


  • Redundant dual DC input Power 12/24/48VDC (9.6~60VDC)
  • IP30 rugged metal housing
  • Wide operating temperature -40~75°C (IMC-100-E )
  • UL508,CE,FCC,,UL Class I Dic.2 for hazardous location certification
  • Industry grade EMS certification
  • Store-and-Forward mode and Cut Through mode (set by DIP SW )
  • Conversion between 10/100Base-T(X) and 100Base-FX cable interface
  • Provide a 6 Pole DIP-Switch to set functions


Standard: IEEE802.3 10BASE-T; IEEE802.3u 100BASE-TX/100BASE-FX; IEEE802.3x Flow Control and Back pressure
RJ45 Ports: 10/100BaseT(X)
Fibre Ports: 100BaseFX (SC/ST/SFP connectors)
Switch Architecture: Store and Forward in Switch mode; Supports 1024 MAC addresses in Switch mode
Ethernet Packet length: 2046Byte (Max) in Switch mode
Jumbo frame: 9K bytes in Pass through (Converter mode)
Fibre parameters:

  • Fibre Cable (Multi-mode): 50/125um,62.5/125um
  • Fibre Cable (Single-mode): 9/125um
  • Wavelength: 1310nm (Multi-mode/Single-mode)
  • Available distance: 2KM (Multi-mode); 30KM (Single-mode); 60KM (Single-mode)

Link Loss Forward:

  • TX-- Fibre: If TX port link down, the media converter will force Fibre port to link down
  • Fibre--TX: If Fibre port link down, the media converter will force TX port to link down

DIP Switch:

1. TP Auto Negotiation OFF: Auto Mode, ON: Force Mode
2. Force TP Speed OFF:100 Mbps , ON:10 Mbps (Only when Force Mode)
3. Force TP Duplex OFF:Full Duplex, ON: Half Duplex (Only when Force Mode)
4. DIP Switch: ON: Enables LFP(Link Fault Pass through) OFF: Disables LFP(Link Fault Pass through)
5. DIP Switch: ON: Flow Control Enable OFF: Flow Control Disable
6. DIP Switch: OFF: Switching mode ON: Pass through Converter mode


  • Fibre: SC (Multi-mode, 2km), SC (Single-mode, 30km, 60KM); ST (Multi-mode, 2km), ST (Single-mode, 30km, 60KM); SFP with LC (optional)
  • RJ-45 Socket: CAT-3/5 (10/100Mbps) Twisted Pair cable
  • Auto MDI/MDI-X and Auto-Negotiation Function Support


  • Power 1 (Green): ON: Power1 active/ OFF: Power1 is inactive
  • Power 2 (Green): ON: Power2 active/ OFF: Power2 is inactive
  • Fault (Red): ON: Fibre or TP has failed; OFF: TP are functional
  • LNK/ACT for Fibre(Green): ON: Connected to network; OFF: Not connected to network/ BLK: Receive/Transmit Data
  • 100M for RJ45(Amber): ON: 100Mbps/ OFF: 10Mbps
  • LNK/ACT for RJ45(Green): ON: Connected to network; OFF: Not connected to network/ BLK: Networking is active

Reserve polarity protection: Present
Overload current protection: Present
Power Supply: 12/24/48VDC, Redundant power with polarity reverse protect function and removable terminal block. Provide DC Power JACK adapter cable for external power adapter.
Alarm Relay Contact: Relay outputs with current carrying capacity of 1 A @24VDC
Removable terminal block: Provide 2 Redundant power, Alarm relay contact
Power Consumption: 2.9 W
Operating Humidity: 5% ~ 95% (Non-condensing)
Operating Temperature: 0°C ~ 60°C(IMC-100), -40°C ~ 75°C(IMC-100-E)
Storage Temperature: -40°C ~ 85°C
Housing: Rugged Metal,IP30 Protection
Case Dimension: 38.6 X 106 X 142 (W X D X H) mm
Weight: 0.62 kg
Installation: DIN Rail mounting and Wall Mounting
EMI: FCC Part 15 Subpart B Class A, EN 55022 Class A
EMS: EN61000-4-2 (ESD) Level 3,Criteria B; EN61000-4-3 (RS) Level 3,Criteria A; EN61000-4-4 (Burst) Level 3,Criteria B; EN61000-4-5 (Surge) Level 3,Criteria B; EN61000-4-6 (CS) Level 3,Criteria A; EN61000-4-8 (Magnetic Field) Level 3,Criteria A
Safety: UL508 (Pending)
Hazardous Locations: UL Class I Division 2 Groups A/B/C/D
Shock: IEC 60068-2-27
Freefall: IEC 60068-2-32
Vibration: IEC 60068-2-6 (Operating,Packing)
MTBF: 852,727 hours
Warranty: 5 years


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Live Demo of FRM220 Chassis

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