3G-SDI Fiber Converter 4 Channel Tally RS485 20km Broadcast

3G-SDI Fiber Converter 4 Channel Tally RS485 20km Broadcast

Model : LNK-3GSDI-4V1DT Series

Product Description & Overview

The LNK-3GSDI-4V1DT Series represents a cutting-edge fiber optic transmission system engineered

for professional broadcast applications requiring multi-channel signal integrity. This advanced converter

extender simultaneously transmits four channels of uncompressed HD/3G-SDI video signals alongside

bidirectional RS485 data and tally control through a single fiber optic cable. Supporting full 1080p

resolution at broadcast-quality standards, this robust solution maintains pristine video quality with zero

compression or latency, making it ideal for mission-critical live production environments.

Featuring comprehensive loop-through output capability, this professional-grade system enables

seamless signal distribution while preserving original source quality across all four independent

channels. The integrated tally function provides real-time camera status indication, while the

bidirectional RS485 interface supports advanced camera control and equipment management.

Designed specifically for broadcast facilities, outside broadcast vans, and live event production,

this fiber-based solution eliminates electromagnetic interference and ground loop issues commonly

encountered in complex production setups.

The system's sophisticated optical engine ensures reliable transmission across extended distances while

maintaining perfect synchronization between all video channels and control signals. With hot-swappable

modules and automatic signal equalization, this converter establishes new benchmarks for multi-channel

broadcast transmission, providing exceptional value for sports broadcasting, studio production, and live

event coverage where signal reliability and operational flexibility are paramount. The rugged construction

and professional connectivity options make it an essential component in modern broadcast infrastructure

requiring simultaneous transmission of multiple high-definition video streams with integrated control

capabilities.

Key Features Bullets

• Multi-Channel Broadcast Transmission
  4-channel 3G/HD-SDI video transmission over single optical fiber

• Professional Signal Integrity
  Automatic cable equalization and reclocking from 270Mbps to 3Gbps

• Extended Distance Operation
  Up to 20km transmission range with optional distance configurations

• Integrated Production Control
  4-channel Tally support with bidirectional RS485 communication

• Broadcast-Level Performance
  Uncompressed digital transmission maintaining original signal quality

• Universal Camera Compatibility
  Direct integration with 3G/HD-SDI camera systems featuring loop output

• Industrial Temperature Range
  Reliable operation from -10℃ to +55℃ environments

Technical Specifications & Indexes

Application Scenarios

• Supporting multi-camera live broadcast production systems

• Enabling outdoor broadcasting with extended fiber transmission

• Facilitating studio camera connectivity with tally control

• Providing broadcast-level video transmission for live events

• Supporting professional video production in harsh environment

Ordering Information

Established in 2001 & headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading manufacturer of fiber optic communication and video transmission products in China.

Our main products include:

• Fiber Media Converters
• Industrial Ethernet PoE switchs
•  PoE Injectors & Splitters
• PoE Extenders
• Serial Fiber Converters
• SFP Transceivers
• HDMI Fiber Converters
• DVI Fiber Converters
• HD/3G/6G/12G Fiber Extenders
• CCTV Fiber Optic Converters
• HDMI/ DVI/ VGA/ SDI Ethernet Extenders

With rich experience in providing high quality products in the
telecom and CCTV business, E-link has a large manufacturing factory
in Shenzhen, able to provide cost-effective solutions 

to serve our customers successfully.



   

   

                                                                   
                                                                  
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Since the launch of our products in domestic and international
markets, we have won a good reputation for our high-quality
products and sincere services. Our products are widely applied to

• System of Telecom
• Public Security
• Bank
• Smart City
• Public transportation
• New Energy Developing
• CCTV Monitoring Transmission

We also provide ODM & OEM services and we have cooperated with some famous companies all
over the world. Our own brand "E-link" is also well known in many countries and have distributors there.





   





















































                                                                   
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E-Link quality:

• ISO9001 Quality System
• CE, RoHS, FCC certified 
• 48 hours of weathering test before delivery
• Conduct full-spectrum environmental and electrical testing on all product designs

   





Our knowledgeable sales, technical support and engineering
personnel are dedicated to understanding your needs and designing
products and solutions to meet your needs. We would be happy to
provide you with the best price, quality products and fast
delivery.