MOXA IMC-21-M-SC Media Converter RJ-45 to Multimode Fiber SC connector

IMC-21 – Industrial Ethernet-to-Fiber Media Converter

The IMC-21 is a high-quality industrial media converter designed for reliable operation in harsh environmental conditions. It enables the conversion of Ethernet 10/100BaseT(X) (twisted pair, RJ-45) signals to 100BaseFX fiber, supporting both single-mode and multi-mode (SC or ST connectors). By using fiber optics, the network range can be significantly extended, while eliminating electromagnetic interference common in industrial environments.

Key Features

• Compact design with DIN rail mounting
  The unit measures only 25 × 109 × 97 mm, allowing easy integration even in limited spaces. Its IP30-rated plastic housing supports quick and secure DIN rail installation.

• Wide power supply range
  The IMC-21 supports 12–45 VDC or 18–30 VAC power input, providing flexibility during installation.

• Enhanced reliability – Link Fault Pass-Through (LFP)
  The LFP function automatically reports link failures—if the signal is lost on one side of the converter, the other side is deactivated as well. This prevents unnecessary network traffic and enables fast troubleshooting.

• Stable performance in all conditions
  Designed to operate in temperatures from -10°C to +60°C, the IMC-21 is well-suited for demanding industrial environments.

• Standards compliance
  Supports IEEE 802.3, 802.3u, 802.3x for full compatibility with modern Ethernet networks.

Technical Specifications

• Ports

  • 1× RJ-45 (10/100BaseTX)

  • 1× Fiber port 100BaseFX (SC/ST, single-mode or multi-mode)

• Power Supply

  • 12–45 VDC or 18–30 VAC (47–63 Hz)

  • Power consumption: 0.15 A @ 24 VDC

  • Reverse polarity and overload protection (1.1 A)

• Transmission Distance

  • Multi-mode: up to 5 km (1300 nm)

  • Single-mode: up to 40 km (1310 nm)

• LED Indicators
  Power status, Ethernet port status, fiber port status, operation mode

• Installation

  • DIN rail mounting

  • Weight: 125 g

  • Plastic housing, IP30 rating

• Environmental Resistance

  • Operating temperature: -10°C to +60°C

  • Relative humidity: 5%–95% (non-condensing)

  • Shock, vibration, and drop resistance per IEC60068

• Certifications

  • EMC: FCC, EN55022, EN61000

  • Safety: UL508, EN60950-1

  • MTBF: 353,000 hours (MIL-HDBK-217F, 25°C)

Applications

The IMC-21 is ideal for industrial automation, transportation, monitoring systems, and any application requiring stable, interference-resistant data transmission. It is suitable for both new fiber installations and upgrading existing copper-based networks.