EF24S Series

Industrial Gigabit Ethernet to Fiber Media Converter

  • Supports auto MDI/MDI-X and auto negotiation
  • Available in both SC and SFP Fiber Connectors
  • Redundant Power Input
  • Jumbo packets up to 10K bytes
  • Link Fault Pass-Through (LFP)
  • Operating Temperature : -40°C to +70°C
EF24S Series

The EF24S Series is a lite Industrial Gigabit Ethernet to Fiber Converter providing media conversion between 10/100/1000 BASE-T(X) and 1000 BASE-(F)X (available in both SC and SFP fiber connectors). Whether you’re upgrading your system or simply replacing an obsolete device with a newer model, EF24S ensures that the process is both easy and cost-efficient.

On top of basic media conversion, the EF24S Series comes with a DIP switch to configure or enable more advanced functions including flow control, link fail pass-through, and jumbo frame limitation to allow maximal flexibility. Although small and slim, it is no doubt rugged and ready for any application.

The EF24S Series Media Converter also provides auto MDI/MDI-X, Auto Negotiation, and Link Fault Pass-Through (LFP) function and one 3-pin DIP switch to configure the functions, such as the flow control, link fail pass-through, and jumbo frame.

StandardsIEEE 802.3 for 10BASE T
IEEE 802.3u for 100BASE-T(X)
IEEE 802.3ab for 1000BASE-T(X)
IEEE 802.3z for 1000BASE-X
RJ45 ports10/100/1000Base-T(X) auto negotiation speed
Fiber Ports1000BASE-(F)X or SFP Slot
LED IndicatorsPWR1, PWR2, F_Mode, Fx_Link, LLCF_ON, Tx_LLCF, Fx_LLCF
DIP SwitchLink Transparency, Jumbo Frame, Flow Control
Power ManagementValue
Input Voltage9~48 VDC
Input Current 0.3A max, 9VDC
ConnectorRemovable 5-pin Terminal Block
Reverse Polarity ProtectionYes
Physical CharacteristicsValue
HousingMetal, IP30 protection
Dimensions(W x H x D mm)32 x 101 x 101 (1.26 x 3.98 x 3.98 in)
WeightEF24S-1G-1Fm-SC-550M / EF24S-1G-1Fs-SC-10 : 362g
EF24S-1G-1SFP : 357g
InstallationDIN-Rail, Wall-Mount (optional kit)
Environmental Limits
Operating Temperature-40°C to 70°C only
Storage Temperature-40°C to +85°C (-40°F to +185°F)
Ambient Relative Humidity5 to 95%, 55°C (non-condensing)
Optical Fiber Specification
Bit Rate1250Mbps1250Mbps
Wavelength (nm)13101310
TX Power (dBm)-11 to -3-10 to -3
RX Sensitivity (dBm)≤-22dBm≤-22dBm
EMCFCC Part 15, Subpart B, Class A
EN 61000-3-2
EN 61000-3-3
EN 55035
EN 61000-6-2
IEC 61000-4-2ESDContact Discharge±6kV3
IEC 61000-4-2ESDAir Discharge±8kV3
IEC 61000-4-3RS80-1000MHz10 V/m3
IEC 61000-4-4EFTDC Power Port±2.0kV3
IEC 61000-4-4EFTSignal Port±1.0KV3
IEC 61000-4-5SurgeDC Power PortLine-to Line±1.0KV3
IEC 61000-4-5SurgeDC Power PortLine-to Earth±1.0KV2
IEC 61000-4-5SurgeSignal PortLine-to Earth±1.0KV2
IEC 61000-4-6CSConducted (enclosure)10 Vrms3
IEC 61000-4-8PFMF(Enclosure)50/60 Hz 30 A/m4
IEC 61000-4-11DIPAC Power Port--
ShockMIL-STD-810G Method 516.7
DropMIL-STD-810G Method 516.7
VibrationMIL-STD-810G Method 514.7
MTBF415,681.88 hrs / 47.45 years (25°C)
Warranty5 Years
EF24S-1G-1Fm-SC-550M1P1EF24S000001GIndustrial Gigabit Ethernet-to-Fiber Media Converter, multimode, SC
connector, Link Fault Pass-Through, Auto Speed, 550 M, wide temperature
EF24S-1G-1Fs-SC-101P1EF24S000002GIndustrial Gigabit Ethernet-to-Fiber Media Converter, single-mode, SC
connector, Link Fault Pass-Through, Auto Speed, 10 KM, wide temperature
EF24S-1G-1SFP1P1EF24S000003GIndustrial Gigabit Fast Ethernet-to-Fiber Media Converter, Link Fault
Pass-Through, Auto Speed, SFP, wide temperature range
Optional Accessories  
WMK-450-Black70100000000052GMetal Wall Mount Kit, Black
AD1120-48F50501201480001G120W/2.5A DIN-Rail 48 VDC power supply with universal
100~240VAC/120-370VDC input
AD1240-48C50502401550001G240W/5A DIN-Rail 48 VDC power supply with universal
100 to 240VAC/120-370VDC input
AXGD-5854-0513522AXGD5854001GSFP Transceiver, 1250Mbps, 850nm, Multi-mode, 550m, 3.3V,
-40°C to +85°C, DDMI
AXGD-1354-0523522AXGD1354001GSFP Transceiver, 1250Mbps, 1310nm, Multi-mode, 2km, 3.3V,
-40°C to +85°C, DDM
AXGD-1354-0533522AXGD1354011GSFP Transceiver, 1250Mbps, 1310nm, Single-mode, 10km, 3.3V,
-40°C to +85°C, DDMI
AXGD-3354-0593522AXGD3354001GSFP Transceiver, 1250Mbps, 1310nm, Single-mode, 40km, 3.3V,
-40°C to +85°C, DDMI


Version Name Time Size Download
v1.0 Datasheet EN 2023-12-28 292.04 KB

Hardware Installation Guide

Version Name Time Size Download
v1.0 EF24S Hardware Installation guide 2023-12-28 6.34 MB

Test reports

Version Name Time Size Download
CE (for EN 62368-1) 2023-12-28 142.97 KB
CE (for EN IEC 61000-6-4, EN61000-6-2) 2023-12-28 171.33 KB
CE+UKCA (for EN55032, EN55035) 2023-12-28 179.4 KB

I have read and agree to the Privacy Policy (art.13 and 14 of the GDPR - EU Regulation 2016/679).