Unmanaged 10/100/1000Base-T to 1000Base-SX/LX/SFP GbE Converter

10/100/1000Base-T(X) to 1000Base-SX/LX/SFP Fibre Converter

The IMC-1000(S) is a family of Gigabit Ethernet non-managed media converters that support conversion between electrical 10/100/1000Base-T and optical 100/1000Base-X Ethernet. Simple DIP switch settings allow configuring the UTP port for auto-negotiation or for forced 10/100/1000 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.

10/100/1000Base-T(X) to 1000Base-SX/LX/SFP Fibre Converter schematic


  • Redundant dual DC input Power 12/24/48VDC (9.6 ~ 60VDC)
  • IP30 rugged metal housing
  • Wide operating temperature -40 ~ 75°C (IMC-1000-E )
  • UL508, CE, FCC, Railway traffic EN50121-4 certification
  • Industrial grade EMS certification
  • Store-and-Forward mode and Pass through mode (set by DIP SW )
  • Conversion between 10/100/1000Base-T(X) and 1000Base-X Fibre cable interface
  • Provide a DIP-Switch to set functions



  • IEEE802.3 10Base-T
  • IEEE802.3u 100Base-TX
  • IEEE802.3ab 100BaseT
  • IEEE802.3z 1000BaseSX/LX
  • IEEE802.3x Flow Control and Back pressure

RJ45 Ports: 10/100/1000Base-T(X)
Fibre Ports: 1000Base SX/LX (IMC-1000, IMC-1000-E); SFP slot (IMC-1000S, IMC-1000S-E)
Data Process Architecture: Store and Forward mode or Pass through mode set by DIP SW
Jumbo frame: 9K bytes
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: (IMC-1000, IMC-1000-E); 500M (Multi-mode SX); 20KM (Single-mode); 40KM (Single-mode)
  • SFP (IMC-1000S, IMC-1000S-E), Distance depend on Fibre Transceiver

Link Fault Pass Through:

  • 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:

  • Off: Alarm For Power Enable
  • On: Alarm For Power Disable
  • Off: Alarm For Port Enable
  • On: Alarm For Port Disable
  • Off: LFP Enable
  • On: LFP Disable
  • Off: Switch Mode
  • On: Converter Mode
  • Off: 1000Base-X
  • On: 100Base-X
  • (Only for IMC-1000S, IMC-1000S-E )


  • Fibre: SC (Multi-mode, 500M), SC (Single-mode, 20KM, 40KM) (IMC-1000, IMC-1000-E), SFP Slot (IMC-1000S, IMC-1000S-E)
  • RJ-45 Socket: CAT-3/5 (10/100Mbps) Twisted Pair cable; Auto MDI/MDI-X and Auto-Negotiation Function Support


  • Per Unit: Power 1 (Green), Power 2 (Green), Fault (Amber)
  • LNK/ACT for Fibre (Green): ON : Connected to network; OFF: Not connected to network; BLK: Receive/Transmit Data
  • SFP Fibre speed (Yellow): ON : 1000Base-X; OFF: 100Base-X (only for IMC-1000S, IMC-1000S-E)
  • RJ-45 port: Speed: 10 (OFF), 100 (Green), 1000 (Yellow)
  • 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; Supports IEEE802.3af Power over Ethernet (PoE) Power Device (PD).
Alarm Relay Contact: Relay outputs with current carrying capacity of 1 A @24VDC
Removable terminal block: Provide 2 Redundant power, Alarm relay contact
Operating Humidity: 5% ~ 95% (Non-condensing)
Operating Temperature: 0°C ~ 60°C(IMC-1000, IMC-1000S); -40°C ~ 75°C(IMC-1000-E, IMC-1000S-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
Installation: DIN Rail mounting and Wall Mounting
EMI: FCC Part 15 Subpart B Class A, EN 55022 Class A

  • EN61000-4-2 (ESD) Level 3,Criteria B
  • EN61000-4-3 (RS) Level 3,Criteria A
  • EN61000-4-4 (EFT) 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)
Railway Traffic: EN 50121-4
Shock: IEC 60068-2-27
Freefall: IEC 60068-2-32
Vibration: IEC 60068-2-6
Warranty: 5 years