会社ブログについて Broadcom AFBR-5FT85Z DC To 50Mb Flexible Link Fiber-Optic Dual-Transmitter With LC Port

Shenzhen Mingjiada Electronics Co., Ltd. supplies the Broadcom AFBR-5FT85Z DC to 50Mb flexible link fibre optic dual transmitter with LC connectors, which is widely used in various fields such as industrial control, smart devices and data transmission.

The AFBR-5FT85Z is the flagship model in this series of DC to 50Mb bandwidth flexible link fibre optic dual transmitters. Equipped with a standard LC fibre optic interface and utilising a dual-channel transmission architecture, it balances low-speed steady-state transmission with medium-to-high-speed dynamic data exchange. It perfectly meets the requirements for establishing fibre optic links across multiple scenarios and at various speeds, making it the preferred core component for short-range industrial fibre optic communication and device optoelectronic signal conversion.

I. Core Positioning and Key Features of the AFBR-5FT85Z

The AFBR-5FT85Z is a dual-channel optical transmitter specifically designed for flexible networking. It overcomes the application limitations of traditional single-rate optical transmitters by supporting full-bandwidth transmission ranging from DC low-speed signals to 50 Mbps high-speed digital signals. It is compatible with both analogue low-frequency signals and high-speed digital pulse signals, offering exceptional flexibility in link adaptation. The product employs an integrated dual-transmitter channel design, enabling independent transmission of dual optical signals without the need for additional expansion modules. This significantly simplifies the optical path structure of equipment, reducing both network deployment costs and equipment footprint.

In terms of interfaces, the AFBR-5FT85Z comes standard with industry-standard LC fibre optic connectors, offering features such as easy insertion and removal, precise alignment, low connection loss and resistance to loosening. It is compatible with mainstream multimode fibre optic cabling systems and standardised fibre optic distribution equipment, making it suitable for standardised cabling retrofits and new installations in industrial and commercial environments. Furthermore, the device upholds Broadcom’s classic industrial-grade manufacturing processes and has undergone rigorous reliability testing. It offers core advantages such as wide-temperature operation, electromagnetic interference (EMI) resistance, low power consumption and a long service life, making it suitable for a wide range of complex operating environments.

II. Key Technical Parameters and Performance Specifications of the AFBR-5FT85Z

Through precise optoelectronic design, the AFBR-5FT85Z achieves a balanced optimisation of bandwidth, stability and compatibility. Its core parameters meet the mainstream requirements of industrial and commercial fibre-optic transmission. The specific key specifications are as follows:

- Transmission Bandwidth and Speed: Supports an ultra-wide speed range from DC to 50 Mbps, enabling the stable transmission of DC low-frequency control signals, low-speed analogue signals, and high-speed digital signals up to 50 Mbps. With no speed adaptation blind spots, it meets diverse transmission requirements such as equipment start/stop control, status monitoring, and high-speed data reporting.

- Optical transmission performance: Utilises an 850nm infrared light-emitting chip, compliant with industrial multimode fibre transmission standards. It features uniform optical output power and extremely low signal distortion, effectively mitigating signal attenuation and crosstalk issues to ensure the integrity and accuracy of link transmission. Based on a mature optoelectronic conversion architecture, the device offers fast response times, seamless switching between high- and low-speed signals without delay, and excellent dynamic transmission stability.

- Interface Specifications: Standard LC duplex interface with a pluggable design, offering high mating precision and low contact loss. Compatible with mainstream 50/125μm and 62.5/125μm multimode fibres, suitable for establishing short-distance indoor and inter-equipment fibre links.

- Operating Environment Parameters: Supports an industrial-grade wide temperature range, operating stably between -40°C and +85°C; withstands complex operating conditions such as extreme temperature fluctuations, humidity and dust; features excellent EMI (electromagnetic interference) resistance, capable of withstanding electromagnetic interference from industrial inverters, motors and high-frequency equipment to prevent signal transmission anomalies.

- Power Consumption and Lifespan: Utilises low-power optoelectronic driver chips, resulting in extremely low static power consumption and low long-term operating costs; the device features a structure free from mechanical wear, with the core light-emitting chip having a lifespan of up to hundreds of thousands of hours, meeting the requirements for long-term, uninterrupted operation of equipment.

- Electrical Compatibility: Compatible with standard TTL and CMOS level drive circuits, the circuit design is straightforward and requires no complex signal pre-processing circuits. It can interface directly with various main control chips and industrial control motherboards, offering low hardware integration barriers.

III. AFBR-5FT85Z Structural Design and Product Advantages

1. Dual-Channel Integrated Architecture for Efficient and Streamlined Networking

The AFBR-5FT85Z features a built-in dual independent transmission channel design, enabling a single device to simultaneously transmit two independent optical signals. Compared to traditional single-channel transmitters, this directly reduces the number of optical interfaces required, streamlining the overall system structure. The dual channels operate independently without interference, capable of carrying different signal types and data rates. This allows for the synchronous transmission of one control signal and one data monitoring signal, significantly enhancing system integration and networking efficiency.

2. Flexible Adaptability Across All Data Rates, Strong Versatility for Various Applications

Unlike fixed-rate optical transmitters, this product’s full bandwidth coverage from DC to 50 Mbps enables integrated compatibility between low-speed control and high-speed data transmission. It can accommodate low-speed DC signal transmission for industrial equipment start/stop, valve control and status feedback, as well as medium-to-high-speed digital signal transmission for equipment parameter acquisition, data uploading and high-definition monitoring auxiliary data. There is no need to replace components based on transmission speed, significantly reducing selection and stocking costs.

3. Standardised LC Interface for Easy Installation and Maintenance

Equipped as standard with an industry-standard LC interface, the device is compact and easy to connect and disconnect. It features anti-misinsertion and anti-loosening designs, making on-site installation, cabling, commissioning and maintenance extremely straightforward. It is also compatible with standardised fibre optic cabling systems, allowing seamless integration with existing fibre networks, industrial control equipment and communication terminals. It is suitable for both upgrading optical pathways in legacy equipment and building new systems, offering exceptional compatibility and scalability.

4. Industrial-grade reliability, suitable for complex operating conditions

The product utilises a sealed, integrated packaging process, offering excellent dust-proof, moisture-proof and vibration-resistant performance. It is suitable for complex application scenarios such as factory workshops, outdoor equipment cabinets, rail transport and smart buildings. Precise opto-electrical calibration effectively reduces signal attenuation and bit error rates, ensuring the long-term stable operation of fibre-optic links and significantly reducing equipment failures and maintenance frequency.

IV. Main Application Scenarios for the AFBR-5FT85Z

Leveraging its flexible rate adaptation capabilities, dual-channel transmission advantages and industrial-grade stability, the AFBR-5FT85Z is widely used in various short-distance fibre optic communication and optoelectronic signal isolation transmission scenarios. Its core application areas are as follows:

- Industrial Automation Control: Optical signal transmission for industrial PLC control systems, servo drive equipment and automated production lines, enabling the stable bidirectional transmission of equipment control commands and operational status data, isolating electrical interference and ensuring the safe operation of industrial control systems.

- Smart Buildings and Security: Data transmission for building automation systems, access control and security equipment, and high-definition surveillance. It supports the synchronous transmission of low-speed control signals and medium-to-high-speed monitoring data, establishing stable fibre-optic communication links within buildings.

- Rail Transport and On-board Equipment: Optical-electrical signal conversion and transmission for on-board smart devices and rail monitoring terminals. Withstands on-board vibrations, extreme temperatures and complex electromagnetic environments, ensuring the continuity and accuracy of equipment signal transmission.

- Medical and Precision Equipment: Opto-isolated data transmission for precision medical instruments and diagnostic equipment. Fibre-optic isolation eliminates electrical interference, enhancing detection accuracy, and supports both low-speed control and high-speed data acquisition scenarios.

- General Fibre-Optic Network Upgrades: Fibre-optic retrofitting of various traditional electrical equipment to replace conventional copper cabling, resolving issues of electromagnetic interference and signal attenuation, whilst meeting flexible transmission requirements for multi-rate and multi-type signals.

V. AFBR-5FT85Z Product Summary

The Broadcom AFBR-5FT85Z dual-transmitter fibre optic module offers core advantages including flexible transmission across the full speed range from DC to 50 Mb, a dual-channel integrated design, standardised LC interfaces, and industrial-grade high reliability. It overcomes the limitations of traditional optical components, which often suffer from single-speed operation and poor adaptability. Balancing practicality and cost-effectiveness, the product features high integration, easy installation and broad applicability. It meets the requirements for long-term, stable operation in harsh industrial environments whilst also being suitable for lightweight networking scenarios in commercial and consumer equipment. As the preferred component for establishing flexible short-range fibre-optic links and isolating optical-to-electrical signal transmission, it provides an efficient, stable and flexible transmitter solution for a wide range of fibre-optic communication systems.