EKI-2741 Series
10/100/1000T(X) to Fiber
Optic Gigabit Industrial Media
 Provides 1 x 1000 Mbps Ethernet port with RJ45 connector
 Provides 1 x 1000 Mbps fiber port with SC or SFP (mini-GBIC) type
connector for 1000Base-SX/LX device
 Provides DIP switch for full/half duplex setting
 Supports MDI/MDI-X auto crossover
 Supports auto-negotiation
 Supports 3,000 VDC surge (EFT) protection
 Supports 4,000 VDC Ethernet ESD protection
 Supports redundant +12-48 VDC power input
 Provides flexible mounting: DIN-rail & Wallmounting
 Provides Link Fault Pass-through (LFP)
 Supports wide operating temperatures from -40 ~ 75° C (EKI-2741LXI)
 Jumbo Frame: 9K bytes
EKI-2741 is designed to convert Gigabit Ethernet networks to Gigabit fiber networks by transparently converting Ethernet signals to optic signals. Therefore, EKI-2741 is an ideal solution
for “fiber to building” applications at central offices or local sites. EKI-2741 supports MDI/MDIX auto detection, so you don’t need to use crossover wires. Furthermore, the EKI-2741
accepts a wide voltage range from +12 ~ 48 VDC. Besides, it also provides 3,000 VDC surge (EFT) protection against over-voltage, so it is suitable for harsh operating environments.
EKI-2741 is an enhanced gigabit Ethernet to fiber optic converter. Aside from its standard features, the versatile EKI-2741 also has the LFP (Link Fault Pass-through) feature. When
one side of the link fails, the other side continues transmitting packets, and waiting for a response that never arrives from the disconnected side. EKI-2741 will force the link to shut
down as soon as noticed that the other link has failed, giving the application software a chance to react to the situation.
 Standard
 LAN  Transmission Distance
 Transmission Speed  Optical Fiber
Multi Mode (EKI-2741SX)
Signal Mode
IEEE802.3, 802.3u, 802.3ab, 802.3x, IEEE 802.3z
10/100/1000Base-T(X), 1000Base-SX or 1000Base-LX
Ethernet: Up to 100 m
Multi-mode: Up to 550 m
Single-mode: Up to 10 km (2741LX) or up to 110 km
SFP: Up to 110 km (2741F)
Up to 1000 Mbps
Wavelength: 850nm
Tx Power: -4/-9.5dBm
Rx Sensitivity: -18dBm
Parameters: 50/125um, 62.5/125um
Wavelength: 1310nm
Tx Power: -3/-9.5 dBm
Rx Sensitivity: -20dBm
Parameters: 9/125um
 Connectors  LED Indicators
 DIP Switch
1 x RJ-45
1 x SC type fiber connector (EKI-2741SX/LX) or
1 x SFP type fiber connector (EKI-2741F)
6-pin removable screw terminal (power & relay)
P1, P2, P-Fail
Fiber: LNK/ACT
Ethernet: 1000M, LNK/ACT
Port Alarm, LFP
 Power Consumption  Power Input 5.28 W (EKI-2741F)
5.18 W (EKI-2741SX)
5.30 W (EKI-2741LX)
12 ~ 48 VDC, redundant dual inputs
 Dimensions (W x H x D) 37 x 140 x 95 mm
 Enclosure IP30, Metal shell with solid mounting kits
 Mounting DIN-rail, Wall
ESD (Ethernet) Surge (EFT for power)
Power Reverse Overload 4,000 VDC
3,000 VDC
0.9 A/12 VDC (Resetable Fuse)
 Operating Temperature Wide Temp Model
 Storage Temperature  Operating Humidity  Storage Humidity  MTBF -10 ~ 60° C (14 ~ 140° F)
-40 ~ 75° C (-40 ~ 167° F)
-40 ~ 85° C (-40 ~ 185° F)
5 ~ 95% (non-condensing)
0 ~ 95% (non-condensing)
515,600 hrs (EKI-2741F)
525,300 hrs (EKI-2741SX/LX)
 Safety  EMC  Shock
 Freefall
 Vibration
UL 60950-1, CAN/CSA-C22.2 No.60950
U.S.A.: FCC Part 15 CISPR 22
EU: EN55011, EN61000-6-4, EN55022 Class A,
EN61000-3-s2/3, EN55024,
IEC61000-4-2/3/4/5/6/8, EN61000-6-2
Ordering Information
EKI-2741F EKI-2741SX EKI-2741LX EKI-2741LXI
Giga Ethernet to SFP Type Fiber Converter
Giga Ethernet to 1000Base-SX Fiber Converter
Giga Ethernet to 1000Base-LX Fiber Converter
Ethernet to 1000Base-LX Converter w/Wide Temp
Online Download