Moxa IMC-21GA Industrial Gigabit Media Converter

Technical Overview

Industrial Gigabit Ethernet to fiber media converter with 1.5 kV isolation, redundant 12-48 VDC input, and -10 to 60°C operating temp.

Key Features

Supports 1000Base-SX/LX with SC connector or SFP slot.
Link Fault Pass-Through (LFPT) for network troubleshooting.
Supports 10K jumbo frames for enhanced transmission performance.
Redundant 12 to 48 VDC power inputs via terminal block.
Supports Energy-Efficient Ethernet (IEEE 802.3az) for power savings.
Industrial-grade reliability with robust metal housing and DIN-rail mounting.
Built-in 1.5 kV magnetic isolation protection for Ethernet ports.
Available in models with an extended operating temperature range of -40 to 75°C.

Technical Specification Matrix

Parameter	Value
Housing Material	Metal
IP Rating	IP30
Input Voltage	12 to 48 VDC (redundant)
Input Current	284.7 mA @ 12 to 48 VDC
Overload Current Protection	1.5 A
Magnetic Isolation Protection	1.5 kV (built-in)
Ethernet Ports	1 x 10/100/1000BaseT(X) (RJ45)
Fiber Ports	1 x 100/1000BaseSFP Slot
Operating Temperature (Standard)	-10 to 60°C (14 to 140°F)
Operating Temperature (Wide Temp. Models)	-40 to 75°C (-40 to 167°F)
Storage Temperature	-40 to 75°C (-40 to 167°F)
Ambient Relative Humidity	5 to 95% (non-condensing)
EMC	EN 55032/24
EMI	CISPR 32, FCC Part 15B Class A
EMS (ESD)	IEC 61000-4-2: Contact: 6 kV; Air: 8 kV
EMS (RS)	IEC 61000-4-3: 80 MHz to 1 GHz: 10 V/m
EMS (EFT)	IEC 61000-4-4: Power: 2 kV; Signal: 1 kV
EMS (Surge)	IEC 61000-4-5: Power: 2 kV; Signal: 1 kV
EMS (CS)	IEC 61000-4-6: 150 kHz to 80 MHz: 10 V/m; Signal: 10 V/m
Safety	EN 60950-1, UL 60950-1
Vibration	IEC 60068-2-6
Shock	IEC 60068-2-27
Freefall	IEC 60068-2-32
MTBF	2,762,058 hrs (MIL-HDBK-217F)
Physical Weight (kg)	0.17
Dimensions L x W x H (cm)	12.5 x 7.9 x 3

Industrial Applications

1. Industrial Control Room Connectivity

Connecting Ethernet-based PLCs or HMI systems in a control room to a remote fiber optic network, extending the reach of the industrial Ethernet and providing immunity to electrical noise over long distances.

Problem Solved

Overcoming distance limitations and electromagnetic interference in industrial environments by converting copper Gigabit Ethernet to fiber optic signals, ensuring stable and reliable communication for critical control systems. The DIN-rail mounting, metal housing, and 1.5 kV isolation allow for robust integration into industrial cabinets.

Industrial EthernetFiber Optic ExtensionEMI ImmunityPLC ConnectivityDIN-rail mounting1.5 kV IsolationGigabit

2. Outdoor Surveillance and Remote Monitoring

Establishing reliable Gigabit Ethernet links for IP cameras or sensor arrays in outdoor or semi-outdoor industrial settings, where long cable runs are needed and environmental conditions can be challenging.

Problem Solved

Providing robust data transmission for outdoor devices over several kilometers using fiber optics, which is immune to lightning strikes and ground loops. The wide operating temperature range (-40 to 75°C for -T models) ensures performance in extreme weather, while the IP30 rating offers protection against solid objects in sheltered outdoor installations.

IP SurveillanceRemote Data AcquisitionFiber Optic LinkWide Temperature OperationIP30Gigabit EthernetEMI Resilience

3. Factory Automation Backbone Extension

Extending a factory's Gigabit Ethernet backbone across different production areas or buildings, utilizing fiber optic cabling to maintain high bandwidth and reliability over distances greater than standard copper Ethernet.

Problem Solved

Enabling high-speed, long-distance data communication between dispersed factory automation cells or buildings without signal degradation or electromagnetic interference, crucial for real-time data exchange in modern manufacturing. The redundant 12-48 VDC power inputs enhance system uptime and reliability in critical operations.

Factory AutomationGigabit Ethernet BackboneLong-Distance CommunicationRedundant PowerFiber Optic Network10K Jumbo FrameIndustrial Reliability