Customized solution for multi-signal optical fiber transmission

Project Background

In industrial video surveillance and remote control systems, modern applications require integration of multiple signal types:

• HDMI digital video
• CVBS analog video
• Dual-channel RS422 industrial data

Traditional multi-device transmission systems often suffer from:

• Complex cabling architecture
• Limited synchronization capability
• Reduced reliability in high-interference environments

To address these challenges, a customized OM610 series fiber-optic multi-service transmission solution is implemented.

Customized Solution Overview

The system is designed as a tailored configuration based on the OM610 platform:

• 1-channel HDMI video
• 1-channel CVBS video
• 2-channel RS422 data

All signals are transmitted over a single-core optical fiber using WDM technology.

System Architecture

TX:

• HDMI input → digital optical conversion
• CVBS input → analog video transmission
• RS422 ×2 → industrial data interface

RX:

• HDMI output → display/control system
• CVBS output → monitoring system
• RS422 ×2 → PLC / control equipment

Fiber Link

• Single-mode fiber (9/125μm)
• WDM bidirectional transmission
• 1310nm / 1550nm optical scheme (OM610 platform compatible)

Key Technical Specifications

Optical Performance

• Link loss: up to 30dB
• Transmission distance: up to 80km
• Fiber connectors: FC / SC / ST / LC optional

Video Performance

• HDMI digital video transmission support
• CVBS compatibility: PAL / NTSC / SECAM
• Bandwidth: 8MHz
• S/N ratio: >60dB (8-bit system)

Data Communication

• RS422 ×2 channels
• Protocol support: RS232 / RS422 / RS485 / Manchester / Biphase
• Baud rate: 0–300kbps
• Bit error rate: 10⁻⁹

Engineering Advantages

1. Multi-signal integration over single fiber

HDMI, CVBS, and RS422 signals are multiplexed into a single optical channel, significantly reducing system complexity.

2. EMI/RFI immunity

Fiber-optic transmission eliminates electromagnetic interference and ground loop issues, ensuring stable operation in industrial environments.

3. Modular and customizable architecture

Based on OM610 platform:

• Flexible signal combination design
• Standalone or rack-mounted systems
• OEM/ODM customization capability

4. Industrial-grade environmental adaptability

• Operating temperature: -35°C to +75°C
• Humidity: 0–95% non-condensing

Application Scenarios

• Intelligent transportation systems (highways, toll stations)
• Industrial monitoring systems (power plants, chemical facilities)
• City-scale security surveillance platforms
• Remote control and ground station systems
• Robotics and automation systems
• Broadcast and multi-signal transmission systems

Project Value Summary

This customized OM610-based solution enables:

• Integration of HDMI + CVBS + RS422 over one fiber link
• Simplified cabling architecture
• Long-distance transmission up to 80km
• Industrial-grade EMI-resistant communication
• Modular expansion for future system upgrades

It is designed for mission-critical environments requiring high reliability, system integration, and long-distance stable transmission.