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RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax 714 532-1885 • www.fiberopticlink.com

 

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2 Channel 4 Wire Data 

with E&M and I/O

DIN Fiber Link System 

SYSTEM INSTALLATION INFORMATION 

This industrial fiber optic media converter is designed to extend two 
4 Wire Voice Frequency Signals over fiber optic cable. This system 
also features bi-directional contact closure for remote relay or alarm 
status transportation. By utilizing fiber cable you gain the advantage 
of sending the signal long distances, up to 120km, as well as gain 
noise immunity to RF and electromagnetic interference.  

This system transports 2 channels of 4 Wire Data with E&M. 

The 4 wire data supports constant transmission of voice frequency 
ranging from 300Hz-3400Hz suitable for a wide range of radio 

and SCADA applications. The devices can be ordered with 

dual fiber or single fiber transceivers. This RLH Fiber Link 

system is designed and made in the U.S.A. and covered by our

 

Limited Lifetime Warranty

.  

Key Features 

• Hardened to operate in -40°F to +158°F (-40°C to +70°C) 

• System power options: 24-48VDC and 125 VDC 

• Multimode or single-mode fiber, and SC or ST connectors 

• Single and dual fiber models available 

• Built-in alarm relay to indicate system failure  

• 4 wire voice frequency data systems  

• Supports E&M 

• Bi-Directional Contact Closure 

• Convenient LED status indicators 

Made in the USA

 covered by our 

Lifetime Warranty

U-147 2017A-1214

Contents

Introduction 

 

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General Safety Practices 

 

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Special Handling Requirements 

 

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Acronyms 

 

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Applications 

 

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Installation

 

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Operation 

 

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Status and Activity LED’s 

 

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Specifications

 

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Ordering Information 

 

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The leader in

rugged fiber optic 
technology.

USER GUIDE

RLH Industries, Inc.

2 Channel 4 Wire Data with E&M and I/O Fiber Link 

Summary of Contents for 2 Channel 4 Wire Data with E&M and I/O

Page 1: ...and made in the U S A and covered by our Limited Lifetime Warranty Key Features Hardened to operate in 40 F to 158 F 40 C to 70 C System power options 24 48VDC and 125 VDC Multimode or single mode fi...

Page 2: ...ng connections to this device Guidelines for handling terminated fiber cable Do not bend fiber cable sharply Use gradual and smooth bends to avoid damaging glass fiber Keep dust caps on fiber optic co...

Page 3: ...y using fiber optic cable the DIN Fiber Link system provides absolute electrical isolation Application Diagrams The diagram below shows a typical configuration of the 4 Wire Data with E M and I O syst...

Page 4: ...VDC or 125VDC depending on model Flat head screwdriver for connection wiring Phillips screwdriver for attaching to wall optional Physical layout POWER FIBER FIBER LINK INPUT OUTPUT INPUT OUTPUT I O 1...

Page 5: ...put signal and RX is the input signal Single fiber models combine input and output signals over one fiber strand Connect fiber cables to the correct TX and RX ports On dual fiber models the TX port of...

Page 6: ...us LED s located on the upper and lower ends of the RJ 45 Socket The upper LED is ON when the input is active and OFF when no input is present The lower LED is ON when the E M output is closed and OFF...

Page 7: ...load wiring prior to installation or maintenance Connect power The system accepts a 24 48VDC or 125VDC local power source depending on the model The power inputs are identified on the top of the devic...

Page 8: ...tatus Description POWER Power ON System Power OK FIBER Fiber Optic Link ON Fiber Link is Connected OFF Fiber Link is Disconnected INPUT Input Sensor ON Input On Active OFF Input Off OUTPUT Output Rela...

Page 9: ...input and output Insertion Loss 0dB 0 5dB each direction Overload Level 8dBm into 600 Ohms E M Input 24 48VDC 3000Vrms optically isolated E M Output 1500VRMS isolation by normally open solid state re...

Page 10: ...20km 12 4 mi 8 9 m A 4D 2EM IO 10 1 B 4D 2EM IO 11 1 60km 37 mi 8 9 m A 4D 2EM IO 14 1 B 4D 2EM IO 15 1 Single mode SC 20km 12 4 mi 8 9 m 4D 2EM IO 40 1 60km 37 mi 8 9 m 4D 2EM IO 41 1 120km 74 mi 8 9...

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