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4 Channel 3G-SDI Fiber Optic Converter Bidirectional Video Transmission 120km
4 Channel 3G-SDI Fiber Optic Converter Bidirectional Video Transmission 120km
Model: LNK-3GSDI-4BV Series
Product Description & Overview
The 4-Channel Bidirectional 3G-SDI Fiber Converter represents a cutting-edge solution for professional
broadcast and video transmission applications requiring high-density signal distribution. This advanced
fiber optic system enables simultaneous transmission of four channels of bidirectional 3G-SDI high-definition
video signals over a single optical fiber, maintaining full 1080p resolution and broadcast-standard video
quality throughout the transmission path. Each channel incorporates both local 3G/HD-SDI loop output
for signal monitoring and long-distance fiber optic transmission capability, providing comprehensive
signal management flexibility for live production environments.
Engineered to meet rigorous broadcast industry standards, this converter pair utilizes advanced wavelength
division multiplexing technology to consolidate multiple video channels alongside reverse RS-485 data
communication through a single fiber strand. The integrated RS-485 data channel supports bidirectional
control signals for PTZ camera operations, lens control systems, and other broadcast equipment requiring
reliable serial communication. The system delivers exceptional audio performance with CD-quality transmission
capabilities, ensuring perfect synchronization between video and audio components across extended distances.
This high-performance fiber converter finds ideal application in broadcast studios, live event production,
sports venues, and distance learning facilities where reliable multi-channel video transmission is critical.
The compact design and single-fiber implementation significantly reduces cabling complexity and infrastructure
costs while providing immunity to electromagnetic interference and ground loop problems common in traditional
copper-based video systems. With its robust construction and broadcast-grade components, this solution offers
television stations, production companies, and AV integrators a reliable and scalable platform for distributing high-
definition video content across campus environments, between buildings, or throughout large facilities while
maintaining the highest quality standards required for professional broadcasting applications.
Key Features Bullets
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Multi-Channel HD Video Transmission
Supports 4-channel bidirectional 3G-SDI video transmission over single fiber optic cable
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Advanced Signal Integrity Protection
Automatic cable equalization and re-clocking from 270Mbps to 3Gbps ensures optimal signal quality
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Broadcast Standard Video Quality
Full digital non-compression transmission maintaining broadcast-level video and CD-quality audio
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Professional Camera System Integration
Direct compatibility with 3G-SDI cameras and support for Reverse RS-485 control protocols
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Extended Distance Transmission
Long-range transmission capability from 10km to 120km without signal degradation
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Industrial Power Design
Terminal block power input for reliable connectivity in industrial and broadcast applications
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Hot Swappable Operation
Supports hot swapping and hot plugging for uninterrupted system maintenance
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Advanced Optical Technology
Utilizes WDM/CWDM/DWDM fiber techniques with superior optic dynamic range
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Wide Temperature Operation
Industrial ultra-broad temperature range (-40℃ to +85℃) for extreme environment deployment
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Zero-Configuration Operation
Fiber optic transmission system requires no adjustment prior to installation and use
Technical Specifications & Indexes
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Fiber Optical interface
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Fiber interface
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Simplex LC
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Transmission distance
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550m-20Km
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Wavelength
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1310nm/1550nm
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|
Video
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Video interface
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BNC
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Video input/output impedance
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75Ω
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Video input/output voltage
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Typical:1Vpp, Min 0.5Vpp, Max 1.5Vpp
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Video Bits Rate
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Max 3.2Gb/s
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Differential gain (10%～90% APL)
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<1%
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SDI format support
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625/25 PAL
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525/29.97 NTSC, 525/23.98 NTSC
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720p50, 720p59.94
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1080i 23/24/30/50/59.94
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1080P 23.98/24/30/50/60
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Video SDI standard
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270Mbps (SD-SDI), 1.485Gbps/M(HD-SDI)
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SMPTE425M3Gb/s Mapping(3G-SDI)
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SMPTE424M 3Gb/s serial interface(3G-SDI)
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Data
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Physical interface
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Industrial standard screw terminal
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Data type
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Reverse RS485
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Frequency/Rate support
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Max. 57600bps for RS485
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BER
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<10ˉ9
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Electrical
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Power adaptor
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AC 110~220V
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Power consumption
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<15W
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LED Indicator
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SDI A/B/C/D/E/F/G/H
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SDI video
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PWR
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Power Supply
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Mechanical
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Dimensions (LxWxH)
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19inch 1U (483 x 220 x 44.45mm )
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Weight
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7KG/pair
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Casing
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Aluminum Case
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Mounting Options
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Rack mount
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Environmental
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|
Working Temperature
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-20℃～+70℃
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|
Storage Temperature
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-40℃～+80℃
|
|
Working Humidity
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0~95%
|
|
MTBF
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≥100000 hours
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Ordering information
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Model
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Description
|
|
LNK-3GSDI-4BV
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4-Ch Bidirectional 3G-SDI Video with loop-out, 20km, SM, FC, including 1 transmitter & 1 receiver, used by pairs
|
|
LNK-3GSDI-4BV1R
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4-Ch Bidirectional SDI Video with loop-out + 1-Ch RS485 Reverse Data, 20km, SM, FC, including 1 transmitter & 1 receiver, used by pairs
|
Application Scenarios
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Broadcast studio multi-camera live production systems
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Sports venue large-screen HD video transmission
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Distance education classroom video distribution networks
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Live event multi-screen display signal transmission
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Television station outdoor broadcasting signal extension
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