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Optical data coupler LS684-DA-EN/F2

  • Fast Ethernet; Powerlink; EtherCAT; Profinet
  • Independent of Ethernet protocol
  • Optimized for real-time Ethernet such as PROFINET IRT and EtherCAT
  • No parameterization
  • Line indicator for signal strength

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  LS684-DA-EN/F2

Product Description
Optical data coupler for fast Ethernet, 150 m detection range, red light, 100 MBit/s data rate, M12 plug
General specifications
Effective detection range0 ... 150 m
Threshold detection range180 m
Light sourcelaser diode
Light typemodulated visible red light
Laser nominal ratings
Laser class1M
Wave length660 nm
Beam divergence15 mrad
Pulse length8 ns
Repetition rate62.5 MHz
Maximum optical power output60 mW
Diameter of the light spot1.5 m at a distance of 100 m
Angle of divergence1 °
Ambient light limit> 10000 Lux
Functional safety related parameters
MTTFd58.6 a
Mission Time (TM)10 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
Data flow indicatorLED green: OPTO-Link
LED yellow: LAN-Link
Function indicatorSignal strength (8 LED: Red, yellow, green)
Electrical specifications
Operating voltage18 ... 30 V DC
No-load supply current200 mA
Data rate100 MBit/s (Fast Ethernet)
Signal delay2.9 µs (across the entire effective operating distance)
Interface type100 BASE-TX
Pre-fault indication output1 PNP, inactive when falling short of the stability control , short-circuit protected, max. 200 mA
Laser safetyEN 60825-1:2007
Approvals and certificates
UL approvalcULus Listed
FDA approvalIEC 60825-1:2007 Complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007
Ambient conditions
Ambient temperature-10 ... 50 °C (14 ... 122 °F)
Storage temperature-20 ... 70 °C (-4 ... 158 °F)
Mechanical specifications
Degree of protectionIP65
HousingABS / PC
Optical faceplastic
Mass700 g

Documents: LS684-DA-EN/F2

ManualsLanguageFile TypeFile Size
ManualENGPDF2391 KB
HandbuchGERPDF1657 KB
Instruction leaflets
Instruction leaflet / Beipackzettel ALLPDF618 KB

Approvals+Certificates: LS684-DA-EN/F2

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of Conformity / EU-KonformitätserklärungDOC-1136CPDF160 KB
EU Pepperl+FuchsPF08CERT1243PDF475 KB
US CA UL General PurposeE87056LINK---

Associated Products: LS684-DA-EN/F2

Mounting bracket for optical data couplerfa
Direct mounting set consisting of 4 x M4 threaded insertsfa
Mounting bracket with deviation mirror for optical data couplerfa

Function: LS684-DA-EN/F2

The optical data coupler connects Ethernet modules to remote modules. These can move toward each other along an axis.
The devices are ideal for conditions in high-rack storage.

The physical transfer takes place protocol-free with 100 MBit/s full duplex. The device offers robust optical data transfer in real time for industrial Ethernet networks such as PROFINET IRT and EtherCAT.

The optical data coupler guarantees a consistent turnaround time for synchronous, jitter-free switching operations and control processes at both ends of the transmission range – over any distance and with any driving dynamics.

Discover the LS682 various features, especially its easy alignment and commissioning …