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EL1141 Series

Hardened-grade Fast Ethernet to Fiber Media Converter
Wide Temperature
UL 508
IEC 61850
IEEE 1613
EN 50121-4
Hardened-grade specs allows for usage in mission critical applications
Supports conversion to single mode or multi mode with ST, SC, or WMD
Link Fault Pass Through helps improves monitoring by passing through information on disruptions
Built-in alarms for power and link failure

The EL1141 Series provides media conversion between 10/100BASE-T and 100BASE-SX-LX Fiber. Built specifically for mission-critical applications in harsh environments, the EL1141's hardened design features high shock and vibration resistance, electrical noise immunity, a wide operating temperature range from -40°C to 75°C, and ruggedized aluminum housing. EL1141 passes IEC61850-3/IEEE1613 certifications and is suitable for power substation applications. With triple power inputs, link down alarming, Link-Fault-Pass-Through and a wide range of fiber connectivity options the EL1141 is the ideal media converter for harsh environments.

EtherWAN — "When Connectivity is Crucial."


EN 50121-4 Certification

    • Designed and tested for railway environment applications

IEC 61850-3/IEEE 1613 Certification

    • Meets standards for application in power substation automation

Wide Operating Temperature

    • -40°C to 75°C wide operating temperature range design is suitable for installation in outdoor cabinets

Link-Fault-Pass-Through (LFPT)

    • Provides constant monitoring of the links connected to the media converters
    • If a copper links fails, the media converter will pass the fail state on throughout the link, disabling the fiber link and the copper link on the opposite end


  • Standards
    • IEEE 802.3 10BASE-T
    • IEEE 802.3u 100BASE-TX and 100BASE-FX
    • IEEE 802.3x Full duplex and flow control
  • Forward and Filtering Rate
    • 14,880pps for 10Mbps
    • 148,810pps for 100Mbps
  • Packet Buffer Memory
    • 128K bits
  • Processing Type
    • Store-and-forward
    • Auto Negotiation
    • Half-Duplex back-pressure and IEEE 802.3x Full-Duplex flow control
    • Auto MDI/MDIX


  • Input
    • 12 to 48VDC (Terminal Block)
    • 12VDC (DC Jack)
  • Power Consumption
    • 2.4W MAX.
    • 0.2A @ 12VDC
    • 0.05A @ 48VDC
  • Protection
    • Overload Current Protection
    • Reverse Polarity Protection


  • Casing
    • Aluminum Case
    • IP30
  • Dimensions
    • 50mm (W) x 110mm (D) x 135mm (H)
    • (1.97" (W) x 4.33" (D) x 5.31" (H))
  • Weight
    • 0.8Kg (1.76lbs.)
  • Installation
    • DIN-Rail (top hat type 35mm) or panel mounting


  • Ethernet Ports
    • 10/100BASE-TX: 1 ports
    • 100BASE-FX: 1 ports
  • LED Indicators
    • Per Unit: Power 1, Power 2, Fault, Link-Fault-Pass-Through
    • Per port 10/100TX: Link/Activity, Full-duplex/Collision, Speed
    • Per port 100FX: Link/Activity, Full-duplex/Collision
  • Relay Contact
    • Relay contact rating with current 1A @ 30VDC, 0.5A @ 120VAC


  • Operating Temperature
    • -40 to 75°C (-40 to 167°F)
  • Storage Temperature
    • -40 to 85°C (-40 to 185°F)
  • Ambient Relative Humidity
    • 5% to 95% (non-condensing)

Regulatory Approvals

  • ISO
    • Manufactured in an ISO 9001 facility
  • Safety
    • UL508
  • EMI
    • FCC Part 15B Class A
    • EN 55022
    • EN 61000-6-4
    • EN 55022
    • EN 61000-3-2
    • EN 61000-3-3
  • EMS
    • EN 61000-6-2
      • • EN 61000-4-2 (ESD Standards)
      • • EN 61000-4-3 (Radiated FRI Standards)
      • • EN 61000-4-4 (Burst Standards)
      • • EN 61000-4-5 (Surge Standards)
      • • EN 61000-4-6 (Induced RFI Standards)
      • • EN 61000-4-8 (Magnetic Field Standards)
  • Environmental Test Compliances
    • IEC 60068-2-6 Fc (Vibration)
    • IEC 60068-2-27 Ea (Shock)
    • FED STD 101C Method 5007.1 (Free fall w/ package)
  • Industrial Compliance
    • IEC61850-3 / IEEE1613
    • EN50121-4
    • NEMA TS2


EL1141-X0B10/100BASE-TX to 100BASE-FX Hardened Media Converter

* DIN-Rail mounting kit included.

100FX Fiber Options (X)

1Multi Mode (SC) - 2Km (1310nm)
2Multi Mode (ST) - 2Km (1310nm)
ASingle Mode (SC) - 20Km (1310nm)
BSingle Mode (SC) - 40Km (1310nm)
HSingle Mode (ST) - 20Km (1310nm)
6Multi Mode (SC) WDM-TX: 1310nm/RX: 1550nm-2Km
7Multi Mode (SC) WDM-TX: 1550nm/RX: 1310nm-2Km
8Multi Mode (SC) WDM-TX: 1310nm/RX: 1550nm-5Km
9Multi Mode (SC) WDM-TX: 1550nm/RX: 1310nm-5Km
PSingle Mode (SC) WDM-TX: 1310nm/RX: 1550nm-20Km
QSingle Mode (SC) WDM-TX: 1550nm/RX: 1310nm-20Km
RSingle Mode (SC) WDM-TX: 1310nm/RX: 1550nm-40Km
SSingle Mode (SC) WDM-TX: 1550nm/RX: 1310nm-40Km

* More 100FX Fiber options also available upon request.

Optional Accessories

KP-AA96-480Panel mounting kit
HDR-30-2430W/1.5A DIN-Rail 24VDC Industrial Power Supply
HDR-60-2460W/2.5A DIN-Rail 24VDC Industrial Power Supply
EDR-75-2475W/3.2A DIN-Rail 24VDC Industrial Power Supply
EX41-145046-XPower Supply 45W 12VDC with Open Wire
(X) = 1: US, 2: EU, 3: UK, 4: AU, 5: JP, 6: SA