ORing Industrial Mini Type Ethernet to Fiber Media Converter - IMC-121FB-SS-SC


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ORing Industrial Mini Type Ethernet to Fiber Media Converter - IMC-121FB-SS-SC

IMC-121FB series are industrial media converters providing media conversion between 10/100Base-T(X) and 100Base-FX. IMC-121FB series feature rigid IP-30 housing design and support wide operating temperature range from -40 to 70˚C. Therefore, IMC-121FB series are reliable media converter and can satisfy most demands of operating environments.





  • Support 2 ports 10/100Base-T(X) auto-negotiation and auto-MDI/MDI-X
  • 2x10/100 Base-T(X) ports to save the usage of copper ports
  • High reliability and rigid IP-30 metal housing
  • DIN-Rail and wall mounting enabled




ORing Media Converter Model IMC-121FB-MM-SC IMC-121FB-SS-SC
Physical Ports  

10/100Base-T(X) Ports in RJ45 Auto MDI/MDIX

Fiber Ports Number 1 1
Fiber Ports Standard 100Base-FX 100Base-FX
Fiber Mode Multi-mode Single-mode
Fiber Diameter (μm)

62.5/125 μm
50/125 μm

9/125 μm
Fiber Optical Connector SC SC
Typical Distance (km) 2 km 30 km
Wavelength (nm) 1310 nm 1310 nm
Max. Output Optical Power (dBm) -14 dBm -8 dBm
Min. Output Optical Power (dBm) -23.5 dBm -15 dBm

Max. Input Optical Power (Saturation)

0 dBm 0 dBm

Min. Input Optical Power (Sensitivity)

-31 dBm  -34 dBm 
Link Budget (dB) 7.5 dB  19 dB 
Ethernet Standards

IEEE 802.3 for 10Base-T
IEEE 802.3u for 100Base-TX and 100Base-FX

LED Indicators  
Power Indicator Green : Power LED x 2
10/100Base-T(X) RJ45 Port Indicator Green for port Link/Act. Amber for Duplex/Collision
100Base-FX Fiber Port Indicator Green for fiber port Link/Act
Input Power Dual 12~48 VDC power input at 4-pin terminal block
Power Consumption (Typ.) 4.5 Watts
Overload Current Protection Present
Reverse Polarity Protection Present
Physical Characteristics  
Enclosure IP-30
Dimensions (W x D x H) 26.1 (W) x 70 (D) x 95 (H)mm (1.03 x 2.76 x 3.74 inch)
Weight (g) 210 g
Storage Temperature -40 to 85°C (-40 to 185°F)
Operating Temperature -40 to 75°C (-40 to 167°F)
Operating Humidity 5% to 95% Non-condensing
Regulatory Approvals  
EMI FCC Part 15, CISPR (EN55022) class A

IEC61000-4-2 (ESD), IEC61000-4-3 (RS), IEC61000-4-4 (EFT), IEC61000-4-5 (Surge), IEC61000-4-6 (CS), IEC61000-4-8, IEC61000-4-11

Shock IEC60068-2-27
Free Fall IEC60068-2-32
Vibration IEC60068-2-6
Safety EN60950-1
MTBF (Hours) (MIL-HDBK-217F2, GB, GC, 25°C ) 1,023,458 1,028,086
Warranty 5 years
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  • ORing Industrial Mini Type Ethernet to Fiber Media Converter - IMC-121FB-SS-SC