BIDI 3G SDI Video Backward Analog Audio BIDI RS422 100M Ethernet Backward Tally Backward Analog Tri-level Sync over Fiber Extender

1Ch BIDI 3G- SDI Video + 2Ch Backward Analog Audio + 1Ch BIDI

RS422 + 1Ch 100M Ethernet + 1Ch Backward Tally + 1Ch Backward

Analog Tri-level Sync over Fiber Extender

SDI Fiber Converter Overview

The E-link LNK-3G2V2BA2D1E1T1S represents an advanced fiber optic transmission system engineered for mission-critical broadcast and surveillance applications. This comprehensive solution integrates seven distinct signal channels through a single fiber optic link, combining bidirectional 3G-SDI video (SMPTE 424M compliant), dual-channel analog audio return, RS422 data communication, 100M Ethernet connectivity, tally signaling, and analog tri-level sync transmission.

Utilizing sophisticated wavelength division multiplexing (WDM) technology, the system ensures complete electrical isolation and immunity to electromagnetic interference, guaranteeing signal integrity across extended distances. The transmitter and receiver pair operates seamlessly over single-mode fiber infrastructure, supporting transmission ranges from standard 20km to extended 80km configurations to accommodate various deployment scenarios.

Featuring robust IP network integration capabilities, this extender enables seamless compatibility with modern broadcasting infrastructures and IP-based surveillance systems. The advanced optical engine delivers broadcast-grade video quality with real-time processing, maintaining precise synchronization between all audio, video, and control signals throughout transmission.

Specifically designed for live event production, outside broadcast vehicles, and high-security surveillance operations, this fiber extender provides a future-proof alternative to conventional coaxial cable systems. Its multi-signal integration capability significantly reduces infrastructure complexity while enhancing system reliability, making it an ideal solution for professional applications requiring uncompromised signal quality and operational security.

Features

• Multi-Signal Integration Capability

  • Enables simultaneous transmission of bidirectional 3G-SDI video, dual-channel analog audio return, RS422 data communication, Ethernet connectivity, tally signaling, and tri-level sync over single-fiber infrastructure

• Broad Standards Compatibility

  • Maintains full SMPTE standards compliance including 424M, 292M, 259M, and 297M specifications, supporting bandwidth ranges from 19.4Mb/s to 2.97Gb/s for flexible video format adaptation

• Advanced Signal Processing

  • Features intelligent cable equalization that automatically adjusts based on detected data rates, ensuring optimal signal integrity across varying transmission conditions

• Optical System Architecture

  • Incorporates built-in CWDM technology with dedicated SFP modules for each transmission path, enabling wavelength division multiplexing and flexible fiber deployment

• Precision Clock Management

  • Implements SMPTE 424M compliant clock recovery system, maintaining precise synchronization and stable signal timing for broadcast-quality video transmission

• Comprehensive System Monitoring

  • Equipped with multi-function LED indicators providing real-time status monitoring of critical operational parameters for immediate system diagnostics

• Extended Format Support

  • Delivers seamless compatibility with HD-SDI, SD-SDI, and DVB-ASI standards, ensuring interoperability with both legacy and modern broadcast equipment

• Adaptive Bandwidth Handling

  • Supports dynamic bandwidth allocation from 19.4Mb/s to 2.97Gb/s, automatically adapting to various video formats and transmission requirements

Application Scenarios

• Outside Broadcast Productions
  Enables multi-signal camera-back systems for mobile production trucks, supporting bidirectional 3G-SDI transmission with integrated tally control, analog audio return, and tri-level sync distribution for genlock synchronization.

• Live Event Broadcasting
  Facilitates remote camera integration in sports venues and concert productions, providing RS422 pan-tilt-zoom control, program return feeds, and intercom communication over single-fiber infrastructure.

• Studio Production Systems
  Supports camera core infrastructure in television studios, distributing tri-level sync signals, tally data, and analog audio alongside primary HD-SDI feeds to production control rooms.

• Electronic News Gathering
  Enables rapid deployment systems for field news production, transmitting camera control data, audio monitoring, and synchronization signals through compact fiber optic links.

• High-Security Surveillance
  Integrates PTZ camera systems in critical monitoring facilities, supporting bidirectional control data, audio monitoring, and Ethernet connectivity for IP-based security systems.

• Distance Learning Studios
  Provides complete classroom production solutions with camera control, audio communication, and synchronization signals for multi-campus educational networks.

Specifications

Order Information

Application Display

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.



   

   

                                                                   
                                                                  
(Automatic Mechanical Equipment)





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.





   





















































                                                                   
                                    (Customer visit)





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.