The IMC-21A Series from Moxa delivers industrial-grade 10/100BaseT(X)-to-100BaseFX media conversion, offering a robust and cost-effective solution for harsh environments. With options for multi-mode or single-mode fiber and SC or ST connectors, this series is well-suited for industrial applications that require long-term reliability and operational flexibility.

Its rugged metal housing, wide temperature tolerance (-40 to 75 °C for -T models), and Link Fault Pass-Through (LFPT) function enhance network reliability and diagnostics. DIP switches provide additional control over port speed, duplex settings, and auto/force configurations.

Technical Specifications:

Ethernet Interface:

• 1 x 10/100BaseT(X), RJ45 (Auto-negotiation, Auto-MDI/MDI-X)
• 1 x 100BaseFX fiber port:
• Multi-mode SC: IMC-21A-M-SC / M-SC-T
• Multi-mode ST: IMC-21A-M-ST / M-ST-T
• Single-mode SC: IMC-21A-S-SC / S-SC-T

Optical Fiber:

• Fiber Type: OM1 (MM), G.652 (SM)
• Typical Distance: 4 km (MM), 5 km (SM), 40 km (Long-range SM)
• Wavelength: 1300 nm (MM), 1310 nm (SM)
• TX Optical Power: -10 to -20 dBm (MM), 0 to -5 dBm (SM)
• RX Sensitivity: -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 an attenuator for single-mode transceivers to avoid excessive optical power

Power Supply:

• Input Voltage: 12 to 48 VDC
• Max Current: 265 mA
• Power Connector: Terminal block
• Protection: Overload and reverse polarity supported

Physical Characteristics:

• Housing: Metal
• IP Rating: IP30
• Dimensions: 30 × 125 × 79 mm (1.19 × 4.92 × 3.11 in)
• Weight: 170 g (0.37 lb)
• Installation: DIN-rail mountable

Environmental Limits:

• Operating Temperature:
• Standard models: -10 to 60 °C (14 to 140 °F)
• Wide temp (-T): -40 to 75 °C (-40 to 167 °F)
• Storage Temperature: -40 to 75 °C
• Humidity: 5–95% (non-condensing)

Certifications:

• EMC: EN 55032/35, CISPR 32, FCC Part 15B
• EMS: IEC 61000-4-2 to -4-11
• Safety: EN 60950-1, UL 60950-1
• Vibration: IEC 60068-2-6
• Environmental Testing: IEC 60068-2-1/-2/-3

MTBF:

• 353,000 hours (MIL-HDBK-217F)

Warranty:

• 5-year manufacturer warranty

Package Contents:

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