RLH Industries 2 Channel 4 Wire Data with E&M and I/O, Руководство пользователя

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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 DA
TA
FIBER
POWER FIBER
FIBER LINK
INPUT OUTPUT
INPUT
OUTPUT
I/O
1
2
TX
RX
4W DA
TA
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
O ffi ce
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
RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax 714 532-1885 • www.fiberopticlink.com Page " 3