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Gigabit Media Converters


Hardened 10/100/1000Base-TX to 1000Base-FX SFP Ethernet Media Converter

General -

  • Converts 10/100/1000Base-TX to 1000Base-FX SFP
  • Supports Full/Half-duplex, Auto-negotiation, Auto MDI/MDIX
  • Supports external 1000Base SFP
  • Extensive LED indicators for network diagnostics
  • 12/24 VDC or VAC Terminal Block Power inputs
  • Supports DIN-Rail and Wall-mount installation
  • -40°C to 75°C (-40°F to 167°F) operating temperature


Ordering Information -

Available Model Description
ET1212H-S-DR Hardened 10/100/1000Base-TX to 1000Base-FX SFP Ethernet Media Converter
Optional Accessories (to be purchased separately)
SFP (S)=SFP Option. Please select your SFP on our SFP Modules page at the back of the catalogue or our website www.ot-systems.comfor details.
Package Checklist
- Gigabit Media Converter x 1
- 1.25A 12VDC power adapter with open wire for terminal block x 1
- Quick Installation Guide x 1


Standards IEEE802.3 10Base-T
IEEE802.3u 100Base-TX
IEEE802.3ab 1000Base-T
IEEE802.3z 1000Base-X
Processing Type Store-and-Forward
Forward Filter Rate 14,880pps (10Mbps)
148,800pps (100Mbps)
1,488,000pps (1000Mbps)
Packet Buffer Memory 1 Mbit
Max Packet Length 9K Bytes
Address Table Size 2048K MAC Addresses
Connector 1 x RJ45
Optical Port 1 x SFP 1000Base-X
Electrical and Mechanical
Input Power 12 / 24 VDC or VAC (Terminal Block)
Power Consumption Max 3W
LED Indicators
Power Power Status
RJ45 LINK/Activity
Dimensions (W x D x H) 96 × 80 × 31 mm
Weight 0.25Kg
Casing Aluminum case
Mounting Options DIN-Rail / Wall Mount
Operation Temperature -40˚C to 75˚C (-40˚F to 167˚F)
Storage Temperature -40˚C to 85˚C (-40˚F to 185˚F)
Relative Humidity 5% to 95% non-condensing
MTBF > 300,000 hrs
Regulatory Approvals
ISO9001, CE, FCC, RoHs
EN55022:2010+AC: 2011, Class A
EN 61000-3-2: 2006+A1: 2009+A2: 2009
EN 61000-3-3: 2013
IEC 61000-4-2: 2008 (ESD)
IEC 61000-4-3:2010(RS)
IEC 61000-4-4:2012(EFT)
IEC 61000-4-5:2014(Surge)
IEC 61000-4-6:2013(CS)
IEC 61000-4-8: 2009(PFMF)


  • ET1212H-S-DR Datasheet
  • 09 Oct 2018
  • Media Converters Products Datasheet Pack
  • 08 Apr 2016
  • 2019 Industrial Ethernet & Networking Products Catalog
  • 09 Oct 2018
  • 2016 Product Selection Guide
  • 08 Apr 2016