IMC-21A Media Converter, Single Mode SC, -40 to 75°C

Part #: M IMC-21A-S-SC-T

Industrial 10/100BaseT(X) to 100BaseFX media converter, single-mode, SC fibre connector, -40 to 75°C operating temperature
  • Overview
  • Specifications
  • Downloads
  • Overview

Industrial 10/100BaseT(X) to 100BaseFX media converters

Note: The Green Core Product Identity of the IMC series will be phased in starting July 1, 2014. During the product transition period, you may still receive products that use the previous panel design. Please click here to learn more about Moxa’s Green Core product transition.

Features and Benefits 

  • Multi-mode or single-mode, with SC or ST fibre connector
  • Link Fault Pass-Through (LFP)
  • -40 to 75°C operating temperature range (T models)
  • DIP switches to select FDX/HDX/10/100/Auto/Force


The IMC-21A industrial media converters are entry-level 10/100BaseT(X) to 100BaseFX media converters designed to provide reliable and stable operation in harsh industrial environments. The converters can operate reliably in temperatures ranging from -40 to 75°C. The rugged hardware design ensures that your Ethernet equipment can withstand demanding industrial conditions. The IMC-21A converters are easy to mount on a DIN-Rail or in distribution boxes.

  • Specifications
StandardsIEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for Flow Control
RJ45 Ports10/100BaseT(X)
Fiber Ports100BaseFX (SC/ST connectors)
LED IndicatorsPower, 10/100M (TP port), 100M (fibre port), FDX/COL (fibre port)
DIP SwitchesTP port’s 10/100M, Half/Full modes, Force/Auto modes; fibre port’s Half/Full modes, Link Fault Pass-Through (LFP)
Optical Fiber
Physical Characteristics
HousingMetal, IP30 protection
Dimensions30 x 125 x 79 mm (1.19 x 4.92 x 3.11 in)
Weight170 g
InstallationDIN-Rail mounting
Environmental Limits
Operating TemperatureStandard Models: -10 to 60°C (14 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature-40 to 75°C (-40 to 167°F)
Ambient Relative Humidity5 to 95% (non-condensing)
Power Requirements
Input Voltage12 to 48 VDC
Input Current265 mA @ 12 VDC,
135 mA @ 24 VDC,
75 mA @ 48 VDC
ConnectionRemovable 3-contact terminal block
Overload Current Protection1.1 A
Reverse Polarity ProtectionPresent
Standards and Certifications
SafetyUL 60950-1
EMIFCC Part 15 Subpart B Class A, EN 55022 Class A
EMSEN 61000-4-2 (ESD) Level 3,
EN 61000-4-3 (RS) Level 2,
EN 61000-4-4 (EFT) Level 2,
EN 61000-4-5 (Surge) Level 2,
EN 61000-4-6 (CS) Level 2
ShockIEC 60068-2-27
FreefallIEC 60068-2-32
VibrationIEC 60068-2-6
Green ProductRoHS, CRoHS, WEEE
MTBF (mean time between failures)
Time353,000 hrs
DatabaseMIL-HDBK-217F, GB 25°C
Warranty Period5 years
  • Downloads