RLH Industries 2 Channel 4 Wire Datawith E&M and I/O User manual

!RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax [phone] • www.fiberopticlink.com!Page "1
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 !1______________________________
General Safety Practices !2___________________
Special Handling Requirements !2_____________
Acronyms !3________________________________
Applications !3______________________________
Installation!4________________________________
Operation !8________________________________
Status and Activity LED’s !8___________________
Specifications!9_____________________________
Ordering Information !10_____________________
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

General Safety Practices
Intended Audience
This guide is intended for use by knowledgeable telco/network installation, operation and repair
personnel. Every effort has been made to ensure the information in this guide is accurate. However, due
to constant product improvement, specifications and information contained in this document are subject
to change without notice.
Caution - Severe Shock Hazard!
• Never install during a lightning storm or where unsafe high voltages are present.
• Active circuits may carry high DC voltages. Use caution when handling copper wiring.
• Remove the power source before making 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 connectors at all times when disconnected.
• Do not remove dust caps from unused fiber connectors.
• Keep fiber ends and fiber connectors clean and free from dust, dirt and debris. Contamination will cause signal loss.
• Do not touch fiber ends.
• Store excess fiber on housing spools or fiber spools at site
Acronyms
Commonly used acronyms and abbreviations
Acronym/Abbreviation
Description
PBX
Private Branch Exchange
TX
Transmit
RX
Receive
MM
Multimode
SM
Single Mode
4W
Refers to 4 wire copper line
LED
Light Emitting Diode
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Applications
Optical fiber is immune to EMI/RF interference, ground loops, and high voltage surges from lightning or
ground faults, and is ideal for electrically noisy environments such as near large power sources, electrical
motors, and radio communications equipment. Using fiber optic cable provides long distance service (up
to 120km/74mi.) without any additional equipment.
Safety benefits of fiber optics
Placement of all-dielectric fiber optic cable (instead of copper) completely eliminates the presence of a
remote ground, which dramatically increases safety of personnel and reliability of equipment. By 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 system.!

RLH 4 Wire Data with E&M Application Diagram
POWER FIBER
FIBER LINK
INPUT OUTPUT
INPUT OUTPUT
I/O
1
2
TX
RX
4W DATA FIBER
POWER FIBER
FIBER LINK
INPUT OUTPUT
INPUT OUTPUT
I/O
1
2
TX
RX
4W DATA FIBER
Redundant!
Power Supply
Inputs
Redundant
Power Supply!
Inputs
RLH 4 Wire Data"
Fiber Link
Up to 74 miles/120km!
Over Fiber Optic Cable
2 Channels
Central
Office
2 Channels
RTU
4 Wire!
600 Ohm
Audio Signal
4 Wire!
600 Ohm
Audio Signal
RLH 4 Wire Data"
Fiber Link
(B) Output
(A) Input
Copper Pairs
Output (A)
Input (B)
Copper Pairs
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Installation
Prior to installation
• Check for shipping damage
• Check the contents to ensure correct model and powering options
• Make sure you have the correct fiber type and power available
• Have a clean, dry installation environment ready
Required for installation:
• Suitable wall, panel, or DIN rail space.
• Local power source (24~48VDC 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
2
TX
RX
4W DATA FIBER
PWR 1PWR 2
NO -+-+COMNC
ALARM
Power 1 & 2 Terminals
Front View
4.93”
1.20”
Fiber Optics
LED Indicators
Alarm Terminals
DIN Rail
Clip
3.93”
Side View
Top View
System!
Identification
4 Wire Data!
with E&M Ports
Contact Terminals
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DIN rail mounting
The DIN clip for mounting the system is mounted onto the rear panel. Hook the DIN clip on the top flange
of the DIN rail and rotate to the locked position to install. To remove, push up to depress the spring latch
and rotate off of the DIN rail.
"
DIN Rail Mounting
Wall mounting
The system can be easily wall mounted by attaching the provided wall mount ears and hardware. Attach
the wall mount ears by following the instructions below. !
"
Wall Mounting
Connect optical fiber cable
The optical ports may be equipped with ST or SC fiber connectors. A fiber pair is required for operation
with dual fiber models, TX is the output 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 one side must
be connected to the RX port of the unit at the other side. Make sure the connections are made
accordingly at both ends of the Fiber Link.
Do not remove fiber cable caps until you connect the fiber to the unit. Exposing the mating optical
interface to the surrounding environment should be limited to installation & maintenance only.
DIN!
Rail
Click
DIN!
Rail
Push Up
Installation
Removal
Left Side
Right Side
1
Replace!
connector.
Attach
Wall Mount Kit.
Remove!
connector.
Mount to wall
using supplied
hardware.
2
3
4
Wall
Mount
Kit
Remove
screws.
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RJ-45 pin list

Connect 4 wire data pairs
The analog voice-frequency data transmission supports constant transmission of 300Hz to 3400Hz.
Connect the TX pairs of the interfacing equipment to pins (3 & 6) of RLH fiber link and the RX pairs of the
interfacing equipment to pins (4 & 5) of RLH fiber link. The TX pairs on each unit of RLH fiber link
corresponds to the RX pair at the other end.
"

"
Connect E&M leads
Connect the E&M leads to the E&M INPUT and E&M OUTPUT RJ-45 pins as illustrated below. The
RECEIVE of one side corresponds to the SEND at the other end. The E&M input is activated by 24VDC,
and can accept up to 48VDC.
"!
E&M operational status may be determined from the 2 status 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 when the output is open.
RJ-45 Pin Chart
E&M INPUT
1
Signal Battery, SB
2
M-Lead
4 WIRE RX (Ring)
3
Ring, Audio Input, R
4 WIRE TX (Ring)
4
Ring, Audio Output, R1
4 WIRE TX (Tip)
5
Tip, Audio Output, T1
4 WIRE RX (Tip)
6
Tip, Audio Input, T
E&M OUTPUT
7
E-Lead
8
Signal Ground, SG
RJ-45
1
8
6
3
3
4
5
6
Ring, Audio Input, R
Ring, Audio Output, R1
Tip, Audio Output, T1
Tip, Audio Input, T
RJ-45 "
Customer Equipment
RJ-45 "
RLH Fiber Link
35 OHMS
NO Relay
RJ-45
PINS
Contact
SEND INPUT
7
8
1
2
RECEIVE OUTPUT
SEND INPUT
RECEIVE OUTPUT
FIBERS
35 OHMS
NO Relay
RJ-45
PINS
Contact
7
8
1
2
RLH 4 Wire E&M
RLH 4 Wire E&M
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Connect wire pairs for contact closure
DO NOT APPLY VOLTAGE to the input contact terminals or the system maybe damaged.
•The contact terminals may be removed and accept wire sizes 16~26 AWG.
•Fully seat the terminal block back into the connector before operating the system..
Input
The input acts as a dry contact sensor, it will sense a relay or contact closure without any external !
power source. No voltage should be applied to the input terminals as they provide the necessary !
wetting voltage.
•Check to ensure the resistance on the copper pairs being used does not exceed 100 Ohms.
Output
• The output is a normally open relay.
•Ensure the output relays maximum load of 60 watts or 62.5VA is not being exceeded.
•Disconnect all power to 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 device, near the alarm terminals and are labeled PWR 1 and PWR 2.
Either or all of them may be used to the power the device.
Connect the leads of the power source to the screw down terminals on top of the DIN device. For ease of
installation, the terminal block may be removed by pulling it straight out. If removed, seat the terminal
block firmly into the connector before applying power. Once power is applied the power LED will turn on.
Note: The power terminals are not polarity sensitive. The positive or negative lead of the power source
may be connected to either terminal of the power connectors.
"
Detail of Power Terminals
PWR 1PWR 2
NO -+-+COMNC
ALARM
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Operation
The 2 Channel 4 Wire Data with E&M and I/O system has four (4) green LED status indicators on the front !
panel of the device and two (2) green LED’s on each RJ-45 port. Below is a table for a description !
of the LED indicators.
Status and Activity LED display
 "
POWER FIBER
FIBER LINK
INPUT OUTPUT
INPUT OUTPUT
I/O
1
2
TX
RX
4W DATA FIBER
Label
Name
Status
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 Relay
ON
Relay Energized
OFF
Relay De-Energized
Upper LED
ON
E&M Input is active
OFF
E&M Input is inactive
Lower LED
ON
E&M Output is active
OFF
E&M Output is inactive
RJ-45 Port

4W Data with E&M
POWER FIBER
FIBER LINK
INPUT OUTPUT
INPUT OUTPUT
I/O
1
2
TX
RX
4W DATA FIBER
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General Specifications
Transmission method
Frequency modulated light via two optical fibers
Multimode:
1310nm
Single-mode:
1310/1550nm
Maximum Fiber Loss / "
Distance*
Multimode:
1.25 mi. / 2km range
Single-mode:
12.4 mi. / 20km range
37 mi. / 60km range
74 mi. / 120km range
Single Fiber, Bi-directional
Single-mode:
12.4 mi. / 20km range
37 mi. / 60km range
*Note: Distances equated using industry standard fiber and connector attenuation.!
(Multimode: 3.5dB/km, Single-mode: 0.4db/km, + 0.5dB per connector, + 0.3dB per splice)
Fiber Type
Multimode: 62.5/125µm, 50/125µm
Single-mode: 9/125µm
Fiber Connector Types
ST or SC
Analog Bandwidth
300Hz to 3400Hz
Channel Noise
< 20dBrnC (15dBrnC typical)
Nominal Impedance
600 Ohm 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 relay: !
Closed resistance 35 Ohms (220VAC or 330VDC @ 150mA max.) Open resistance >1M Ohms
Response Time
Input to output 15-18ms.
Surge Protection
PTC thermistors varistors
Bi-Directional"
Contact Closure (I/O)
Inputs
Dry contact (100 Ohms maximum loop impedance)
Outputs
Relay - Normally Open
Relay Max. Rating
125VAC / 0.5A / 62.5VA
30VDC / 2.0A / 60 Watts
Power Requirements
24-56VDC
Power Consumption
6 Watts Maximum
Operating Temperature
-40° to +158° F (-40° to +70° C), 95% non-condensing
Dimensions
H 4.93” x W 1.20” x D 3.93” (not including DIN clip)
Warranty
Limited Lifetime
Visit www.fiberopticlink.com for warranty details
!RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax [phone] • www.fiberopticlink.com!Page "9

Ordering Information
Each 2 Channel 4 Wire Data with E&M and I/O Fiber Link device is identified with a part number.
A complete system requires 2 units.
Add -A for 125 VDC Powering Option
Please contact your RLH sales representative for pricing and delivery information.!
"
Optics
Distance
Fiber
Side
Part Number
Multimode SC
2km / 1.2 mi.
62.5/50μm
-
4D-2EM-IO-03-1
Multimode ST
2km / 1.2 mi.
62.5/50μm
-
4D-2EM-IO-04-1
Single-mode SC!
(Single Fiber)
20km / 12.4 mi.
8~9µm
A
4D-2EM-IO-10-1
B
4D-2EM-IO-11-1
60km / 37 mi.
8~9µm
A
4D-2EM-IO-14-1
B
4D-2EM-IO-15-1
Single-mode!
SC
20km / 12.4 mi.
8~9µm
-
4D-2EM-IO-40-1
60km / 37 mi.
8~9µm
-
4D-2EM-IO-41-1
120km / 74 mi.
8~9µm
-
4D-2EM-IO-45-1
Single-mode !
ST
20km / 12.4 mi.
8~9µm
-
4D-2EM-IO-50-1
60km / 37 mi.
8~9µm
-
4D-2EM-IO-51-1
120km / 74 mi.
8~9µm
-
4D-2EM-IO-55-1
RLH Industries, Inc.
936 N. Main Street, Orange, CA 92867 USA
T: [phone]
F: [phone]
Please contact your RLH sales representative!
for pricing and delivery information.
Specifications subject to change without notice.
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