The IMC-21 Series from Moxa provides a reliable and cost-effective entry-level solution for converting 10/100BaseT(X) Ethernet to 100BaseFX fiber, specifically designed for basic industrial environments. Available with SC or ST fiber connectors in multi-mode or single-mode versions, these converters feature DIP switch configuration, Link Fault Pass-Through (LFPT), and rugged hardware for stable performance.

Operating within a temperature range of -10 to 60°C and equipped with DIN-rail mounting and a plastic IP30-rated housing, the IMC-21 is ideal for panel or cabinet installations. Power flexibility (12–48 VDC input) makes integration into existing industrial power systems simple and effective.

Technical Specifications:

Ethernet Interfaces:

• 1 x 10/100BaseT(X), RJ45 (auto negotiation, auto MDI/MDI-X)
• 1 x 100BaseFX (model dependent):
• Multi-mode SC: IMC-21-M-SC, up to 4 km
• Multi-mode ST: IMC-21-M-ST, up to 4 km
• Single-mode SC: IMC-21-S-SC, up to 40 km

Optical Specifications:

• Wavelength: 1300 nm (MM), 1310 nm (SM)
• TX Power: -10 to -20 dBm (MM), 0 to -5 dBm (SM)
• RX Range: -3 to -32 dBm (MM), -3 to -34 dBm (SM)
• Link Budget: 12 dB (MM), 29 dB (SM)
• Dispersion Penalty: 3 dB (MM), 1 dB (SM)
• Note: Use attenuator for single-mode fiber if needed

Power Parameters:

• Input Voltage: 12 to 48 VDC
• Max. Input Current: 0.271 A
• Overload Protection: Supported

Physical Characteristics:

• Housing: Plastic
• IP Rating: IP30
• Dimensions: 25 x 109 x 97 mm (0.98 x 4.29 x 3.82 in)
• Weight: 125 g (0.27 lb)
• Mounting: DIN-rail

Environmental Conditions:

• Operating Temperature: -10 to 60°C
• Storage Temperature: -40 to 70°C
• Humidity: 5 to 95% (non-condensing)

Certifications:

• EMC/EMI: EN 55032/24, FCC Part 15B, CISPR 32
• EMS: IEC 61000-4-2 to -4-11
• Safety: UL/EN 60950-1
• Environmental/Vibration Testing: IEC 60068-2-1/2/3/6

MTBF:

• 353,000 hours (MIL-HDBK-217F)

Warranty:

• 5-year manufacturer warranty

Package Contents:

• 1 x IMC-21 media converter
• 1 x Quick installation guide
• 1 x Warranty card