Ethernet to Fiber Converters

Unmanaged Industrial Media Converter

1x10/100/1000Base-T + 1-Slot 100FX/Gigabit SFP 


The IMC-661 Unmanaged Industrial Media Converter is specifically engineered to offer an affordable solution for industrial systems. Built to withstand wide operating temperature from -40°C to 75°C, the media converter can operate consistently even in harsh industrial environments. The IMC-661 features intelligent functions like Auto MDI/MDIX, LFS (Link Fault Signaling), LLB (Line Loopback), LEDs, DIP switches to provide easy plug-and-play, continuous monitoring thereby minimizing down me for mission-critical networks.

Robust Performance
With an industrial aluminum housing case, IP30, surge and ESD protection, the IMC-661 provides a high level of immunity against electromagnetic interference and heavy electrical surges.

Fault-tolerant and User-friendly Monitoring
LFS (Link Fault Signaling) enables you to easily detect optical signal strengths and faulty links on both copper and fiber ports.

DIN-Rail-mounted Power Adapter (AC to DC) & 6-pin Terminal Block
“DIN-Rail Power Adapter” function is the primary power source which converts AC to DC for board operation, while “6-pin Terminal Block” supports primary and secondary power input.

Easy Plug-and-play Operation
Being compact in size, IMC-661 media converter is an easy-to-setup and ready-to-use solution for any application system. 

IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX/FX
IEEE 802.3ab 1000BASE-T
IEEE 802.3z 1000BASE-SX/LX
IEEE 802.3x Flow Control
IEEE 802.3az EEE

Ports 1 x 10/100/1000BASE-T RJ45 Port
1 x 100FX/Gigabit SFP Slot
DIP Switch Primary/Redundant (PWR/RPS) power voltage drop alarm setting
100BASE-FX (FX100), Link Fault Signaling (LFS), Local Loop Back (LLB) feature enable alarm setting
LED Panel PWR, RPS, ALM, PoE, 1000, LNK/ACT, SFP

Input Voltage Primary inputs:20V~57VDC
Redundant inputs:20V~57VDC
Power Consumption System:7W
Alarm Relay One relay output, 1 A @ 24V DC

Mechanical and Environment
Housing Aluminum (IP30 Protection)
Mounting DIN-Rail, Wall Mount (optional)
Operating Temperature -10°C~70°C
Wide Operating Temperature -40°C~75°C
Storage Temperature -40°C~85°C
Operating Humidity 10 to 95% RH (non-condensing)
Storage Humidity 5 to 95% RH (non-condensing)
Weight 445g
Dimension (WxHxD) 50x120x100mm



Volktek continues to develop client-valued functions. Please call us for more details.


The IMC-661 is compatible with 10/100/1000Mbps through RJ45 transceivers to guarantee a strong, stable connection of Ethernet, Fast Ethernet or Gigabit Ethernet, providing flexible deployment options to satisfy industrial networking requirements.

File name Version Download
IMC-661 Datasheet 1.0
IMC-661 Flyer 1.0
IMC-661 Photo 1.0
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