Moxa IMC-21-M-SC Industrial Ethernet to Fiber Converter

Technical Overview

Entry-level industrial 10/100BaseT(X) to 100BaseFX media converter with multi-mode SC fiber, 12-48VDC input, IP30 protection, and -10 to 60°C operation.

Key Features

10/100BaseT(X) to 100BaseFX media conversion
Multi-mode with SC fiber connector
Link Fault Pass-Through (LFPT) function
DIP switches for FDX/HDX/10/100/Auto/Force selection
Designed for DIN-rail mounting
IP30 protection for industrial environments
Wide operating temperature range of -10 to 60°C
1.5 kV magnetic isolation protection

Technical Specification Matrix

Parameter	Value
Input Voltage	12 to 48 VDC
Input Current	0.271A (Max.)
Operating Temperature	-10 to 60°C (14 to 140°F)
Storage Temperature	-40 to 70°C (-40 to 158°F)
Ambient Relative Humidity	5 to 95% (non-condensing)
IP Rating	IP30
Housing Material	Plastic
Magnetic Isolation Protection	1.5 kV (built-in)
MTBF (Mean Time Between Failures)	353,000 hrs
Physical Weight (kg)	0.13
Dimensions L x W x H (cm)	10.9 x 2.5 x 9.7

Industrial Applications

1. Light Industrial Factory Automation Networks

This media converter is ideal for extending Ethernet networks in light industrial factory automation environments where long-distance copper runs are problematic or susceptible to electromagnetic interference.

Problem Solved

Provides reliable, EMI-immune data transmission for PLCs, HMIs, and sensors by converting copper Ethernet to multi-mode fiber, suitable for installation within control cabinets with an IP30 rating and operating temperature of -10 to 60°C.

Ethernet extensionEMI immunityFactory automationPLC communicationHMISCADA

2. Building Automation System Connectivity

The IMC-21-M-SC can be used to integrate and extend network segments within large building automation systems, such as connecting IP cameras, access control, or HVAC systems across different floors or building wings.

Problem Solved

Facilitates long-distance, secure, and reliable communication over fiber optic cabling within indoor environments, where its IP30 rating and DIN-rail mounting are appropriate for telecommunication rooms or electrical closets, enhancing overall network stability.

Building managementAccess controlIP camerasFiber optic backboneNetwork segmentationHVAC systems

3. Remote Monitoring in Wastewater Treatment Plants (Enclosed Units)

This converter is suitable for connecting control room Ethernet to remote monitoring units in wastewater treatment plants, provided the remote units are housed in protective enclosures that ensure conditions remain within the IP30 and -10 to 60°C operating limits.

Problem Solved

Ensures robust and electrically isolated data communication from central control to remote data acquisition points, overcoming distance limitations and reducing electrical noise in potentially challenging but enclosed industrial settings, using a common 12-48 VDC power input.

Remote monitoringData acquisitionSCADAProcess controlEMI protectionWastewater treatment