
IMC-21A-M-ST-T
IMC-21A SeriesIndustrial 10/100BaseT(X)-to-100BaseFX media converters
- Multi-mode or single-mode, with SC or ST fiber connector
- Link Fault Pass-Through (LFPT)
- -40 to 75°C operating temperature range (-T models)
- DIP switches to select FDX/HDX/10/100/Auto/Force
Certifications UL Listed · CE · FCC
Ships from and sold by A5 IT, an authorized Moxa reseller.
Specifications
Ethernet Interface
- 10/100BaseT(X) Ports (RJ45 connector)
- 1
- 100BaseFX Ports (multi-mode ST connector)
- 1
- Magnetic Isolation Protection
- 1.5 kV (built-in)
- Optical Fiber
- Read more 100BaseFX Multi-Mode Single-Mode Fiber Cable Type OM1 50/125 µm G.652 800 MHz x km Typical Distance 4 km 5 km 40 km Wavelength Typical (nm) 1300 1310 TX Range (nm) 1260 to 1360 1280 to 1340 RX Range (nm) 1100 to 1600 1100 to 1600 Optical Power TX Range (dBm) -10 to -20 0 to -5 RX Range (dBm) -3 to -32 -3 to -34 Link Budget (dB) 12 29 Dispersion Penalty (dB) 3 1 Note: When connecting a single-mode fiber transceiver, we recommend using an attenuator to prevent damage caused by excessive optical power. Note: Compute the “typical distance” of a specific fiber transceiver as follows: Link budget (dB) > dispersion penalty (dB) + total link loss (dB).
Power Parameters
- Input Current
- 12 to 48 VDC, 265 mA (Max.)
- Input Voltage
- 12 to 48 VDC
- Overload Current Protection
- Supported
- Power Connector
- Terminal block
- Reverse Polarity Protection
- Supported
Physical Characteristics
- Housing
- Metal
- IP Rating
- IP30
- Dimensions
- 30 x 125 x 79 mm (1.19 x 4.92 x 3.11 in)
- Weight
- 170 g (0.37 lb)
- Installation
- DIN-rail mounting
Environmental Limits
- Operating Temperature
- -40 to 75°C (-40 to 167°F)
- Storage Temperature (package included)
- -40 to 75°C (-40 to 167°F)
- Ambient Relative Humidity
- 5 to 95% (non-condensing)
Standards and Certifications
- EMC
- EN 55032/35
- EMI
- CISPR 32, FCC Part 15B Class A
- EMS
- IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV IEC 61000-4-5 Surge: Power: 1 kV; Signal: 1 kV IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m IEC 61000-4-8 PFMF IEC 61000-4-11
- Environmental Testing
- IEC 60068-2-1 IEC 60068-2-3
- Safety
- EN 60950-1 UL 60950-1
- Vibration
- IEC 60068-2-6
MTBF
- Time
- 353,000 hrs
- Standards
- MIL-HDBK-217F
Warranty
- Warranty Period
- 5 years
- Details
- See www.moxa.com/warranty
Documentation
| Name | Type | Version | Date |
|---|---|---|---|
| Datasheet for IMC-21A Series729.5 KB | Datasheet | v1.6 | Aug 05, 2024 |
| Declaration of Conformity for IMC-21A Series306.9 KB | Declaration | v1.0 | Mar 11, 2024 |
| QIG for IMC-21A Series1.1 MB | QIG | v5.2 | May 21, 2021 |
| 2D CAD for IMC-21A-M-SC TOP43.3 KB | 2D CAD | — | May 17, 2016 |
| 2D CAD for IMC-21A PCBA53.4 KB | 2D CAD | — | May 17, 2016 |
| 2D CAD for IMC-21A-M-ST TOP43.4 KB | 2D CAD | — | May 17, 2016 |




