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

Model: LNK-3GSDI-4V1DT Series

 Product Description & Overview

The 4-Channel 3G-SDI Fiber Converter with RS485 & Tally delivers a high-density, integrated solution

for professional broadcast signal transmission. This advanced system consolidates four independent

channels of 3G-SDI high-definition video, four tally signaling channels, and a bi-directional RS485 data

path onto a single optical fiber. The matched transmitter and receiver pair is engineered to maintain

pristine 1080p video quality using non-compressed, broadcast-level transmission technology, ensuring

zero generation loss for the most demanding production environments.

Utilizing sophisticated fiber optic multiplexing technology, this converter significantly simplifies infrastructure

by reducing cable complexity while providing each video channel with a dedicated loop-through output for

local monitoring. The integrated RS485 interface enables reliable remote control of cameras, robotic

systems, and other studio equipment, while the multi-channel tally system ensures clear visual communication

between the control room and camera operators. This comprehensive signal integration makes the system

ideal for live broadcasts, sports production, and studio applications where space, reliability, and signal clarity

are paramount.

Designed specifically for the broadcast industry, this robust converter is widely used in outside broadcast

(OB) vehicles, production control rooms, and studio-to-transmitter links. Its ability to handle multiple video

feeds alongside critical control and communication signals over a single fiber makes it a cornerstone for

modern, efficient broadcast facilities. By providing immunity to electromagnetic interference and signal

degradation, this solution offers broadcasters a reliable and future-proof method for expanding their

production capabilities while maintaining the highest standards of video quality and operational control.

Key Features Bullets

• Multi-Channel HD Video Transport
  Transmits 4 independent channels of 3G/HD-SDI video over a single optical fiber.

• Intelligent Signal Integrity Assurance
  Automatic cable equalization maintains optimal signal quality across all connected links.

• Precision Multi-Rate Signal Recovery
  Automatic reclocking for data rates from 270 Mbps to 3 Gbps ensures stable signal regeneration.

• Professional Production Integration
  Direct compatibility with 3G/HD-SDI cameras and includes 4-channel loop-through output for monitoring.

• Flexible Transmission Distance
  Supports transmission up to 20 km, with optional distances available to suit various application needs.

• Multi-Channel Tally System
  Integrated 4-channel tally signaling for clear visual communication in live production environments.

• Broadcast-Grade Video Quality
  Full digital non-compression technology delivers studio-level, lossless video transmission.

• Comprehensive Control & Communication
  Supports 1-channel backward RS485 for device control alongside 4-channel tally functionality.

• Stable Environmental Performance
  Reliable operation within a working temperature range of -10℃ to +55℃.

Technical Specifications & Indexes

Ordering Information

Application Scenarios

• Multi-camera live studio broadcast production systems

• Outside broadcast van and mobile production unit setups

• Sports event multi-feed video transmission and control

• Professional television studio camera and tally networks

• Remote production with integrated camera control systems