Bidirectional 3G-SDI with Loop-out Tally Bidirectional RS485 or RS422 Stereo Audio Microphone over Fiber Converter

1Ch Bidirectional 3G-SDI with Loop-out + 1Ch Tally + 2Ch Bidirectional RS485 or RS422 + 2Ch Stereo Audio + 1Ch Microphone over Fiber Converter

Overview

The LNK-3G-1BV1T2BD2A1M Series represents an advanced fiber optic transmission solution engineered for professional broadcast and live production environments. This sophisticated converter integrates seven distinct signal channels through a single fiber optic link, combining bidirectional 3G/HD-SDI video with embedded audio, local loop-through monitoring, tally signaling, dual-channel bidirectional RS485/RS422 control, stereo audio transmission, and microphone input capabilities.

Utilizing advanced optical transmission technology, the system ensures broadcast-grade signal quality with full 1080P resolution support and compliance with SMPTE standards. The integrated loop-out functionality enables real-time local monitoring without interrupting the primary transmission path, while the comprehensive status indication system provides immediate visual feedback on all critical operational parameters through multi-color LED indicators.

Specifically designed for mission-critical applications, this converter delivers exceptional stability and reliability in demanding environments. The robust construction and advanced error correction mechanisms guarantee uninterrupted performance across extended distances, making it ideal for broadcast facilities, live event production, and security monitoring systems.

This versatile solution finds extensive application in intelligent transportation networks, educational campus systems, industrial automation monitoring (power generation, chemical processing, steel manufacturing, petroleum refining, railway operations), military security infrastructure (warehouse monitoring, border surveillance, guard post systems), television broadcast transmission, and stadium live production environments requiring high-definition video and multi-channel audio transmission with comprehensive control capabilities.

Features

• Multi-Signal Integration Capability

  • Enables simultaneous transmission of bidirectional 3G-SDI video with local loop-through monitoring, tally signaling, dual-channel serial control, stereo audio, and microphone input over single-fiber infrastructure

• Advanced Video Processing

  • Features automatic signal reclocking across 270Mbps to 3Gbps data rates, supporting multiple HDTV formats including 720P, 1080i, and 1080P@60Hz with 1920×1080 resolution

• Extended Transmission Performance

  • Delivers uncompressed broadcast-quality video over single-mode fiber with 20km transmission capability, maintaining signal integrity across extended distances

• Robust Industrial Design

  • Engineered for extended temperature operation from -20℃ to +70℃, ensuring reliable performance in extreme environmental conditions and outdoor installations

• Professional Audio Integration

  • Supports dual-channel stereo audio transmission with dedicated microphone input, enabling comprehensive audio-video production capabilities for live broadcasting applications

• Flexible Control System

  • Provides bidirectional RS485/RS422 communication across two independent channels, allowing simultaneous device control and data monitoring in complex production systems

• Maintenance-Optimized Operation

  • Enables hot-swappable module replacement and hot-pluggable connectivity, supporting system maintenance and component upgrades without service interruption

• Broadcast-Grade Quality

  • Maintains fully digital uncompressed transmission meeting professional broadcast standards, ensuring premium picture quality and signal reliability for mission-critical applications

Application Scenarios

• Live Broadcast Productions
  Enables multi-camera remote production for outside broadcast vehicles, supporting bidirectional 3G-SDI transmission with tally control, camera PTZ operation, and audio intercom through dual RS485/422 channels

• Sports Venue Systems
  Facilitates stadium camera integration for live event coverage, providing program return feeds, commentator microphone signals, and camera control data over single-fiber infrastructure

• Broadcast Studio Infrastructure
  Supports studio camera systems with loop-through monitoring, tally indication, and bidirectional audio communication for production control room operations

• Remote News Gathering
  Enables field production systems for electronic news gathering, transmitting camera signals, reporter audio, and control data through compact fiber links

• Security Monitoring Centers
  Integrates PTZ camera systems in critical surveillance networks, supporting camera control, audio monitoring, and microphone communication for high-security facilities

• Industrial Monitoring Systems
  Provides remote monitoring solutions for power substations, chemical plants, and transportation infrastructure with extended temperature operation capability

• Educational Production Facilities
  Supports distance learning networks and campus television systems with multi-signal transmission for classroom production and lecture capture applications

Technical Indexes

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