Application of Cables in Aircraft Cabin Broadcasting Systems

Application of Cables in Aircraft Cabin Broadcasting Systems

1.Product industry background

With the continuous development of aviation, flight safety and passenger experience are increasingly emphasized. As an important part of in-flight communication, aircraft cabin broadcasting system is not only responsible for transmitting crew’s instructions and prompts, but also undertakes the key tasks of playing entertainment programs, emergency notifications, etc. Therefore, the cable solution has become a key factor to ensure the stable and reliable operation of the system. Therefore, the cable solution of cabin broadcasting system becomes a key factor to ensure the stable and reliable operation of the system.

2. Pain point analysis

Aircraft cabin broadcasting system cables face multiple challenges. First of all, the cabin environment is complex and changeable, the cable needs to withstand high and low temperature, vibration, electromagnetic interference and other factors. Secondly, the broadcasting system has extremely high requirements for sound quality and signal transmission stability, and any shortcomings in cable performance may affect the broadcasting effect. In addition, the safety of the cable is also a non-negligible problem, must ensure that in emergency situations can work normally.

3. The aircraft cabin broadcasting system on the cable requirements

Aircraft cabin broadcasting system cables need to meet the following requirements:

Electrical performance: excellent conductivity to ensure the accuracy and stability of signal transmission.
Environmental adaptability: high and low temperature resistance, anti-vibration, anti-electromagnetic interference, can work stably in the complex cabin environment.
Safety: flame retardant, low smoke, non-toxic, in line with aviation safety standards.
Lightweight: the cable is lightweight and space-saving, easy to install and maintain.

4. The certification standards

Aircraft cabin broadcasting system cables must comply with the certification standards in the international aviation field, such as the certification of the U.S. Federal Aviation Administration (FAA), the European Aviation Safety Agency (EASA) certification, etc. TICW/06-2009, GB/T19666-2008, EN50200-2015, EN50264, EN50306, EN50382, etc.,. These standards have strict regulations on the electrical performance, environmental adaptability and safety of cables to ensure that the quality and performance of cables reach aviation level.

5.Cable selection

For the special requirements of aircraft cabin broadcasting system, TST CABLES recommends the use of low-smoke halogen-free flame retardant, lightweight, highly flexible aviation cable. These cables are made of special materials and processes, with excellent electrical performance and environmental adaptability, and can meet the requirements of aircraft cabin broadcasting system for sound quality, signal stability and safety.

Selection parameters for reference (can be customized according to actual needs)
Rated voltage: 300V/500V.
Temperature range: -40°C to 90°C.
Cross-sectional area: 0.75mm2 to 1.5mm2.
Number of cable cores: 1 to 19 pairs.
Fire resistance time: 90 minutes to 120 minutes. It utilizes a ceramic-silicone insulation system that can withstand a 15-minute spray of fire water while the circuit continues to operate.
Bending radius: Fixed installation: 5 times the outer diameter of the cable (5D). Non-fixed installation: 6 times the outer diameter of the cable (6D).

6. Product Characteristics

This cable solution has the following outstanding characteristics:

Excellent electrical performance: high purity copper conductor is used to ensure the accuracy and stability of signal transmission.
Strong environmental adaptability: the cable sheath is made of special materials with excellent resistance to high and low temperatures, vibration and electromagnetic interference.
Low smoke, halogen-free, flame retardant and low smoke: the cable complies with aviation flame retardant standards, which can effectively reduce the risk of fire in emergency situations.
Lightweight and easy to install: the cable is lightweight, flexible and space-saving, making it easy to install and wire in the airplane cabin.

Recommended Products

Fire-resistant, tensile-resistant and lightweight, cabin PA system cables are an important component on aircraft, responsible for transmitting audio signals between the central audio unit and the loudspeakers distributed throughout the cabin.

7. Technical Tests

In order to ensure that the quality and performance of the cable meets the requirements, TST CABLES has conducted a series of technical tests, including electrical performance test, environmental adaptability test, flame retardant performance test, etc.. The test results show that this cable solution meets or exceeds international aviation standards in all performance indicators.

8. cable laying installation and commissioning

In the process of cable laying, installation and commissioning, TST CABLES follows strict aviation standards and operational procedures. First of all, according to the actual situation of the aircraft cabin and the needs of the broadcasting system, to develop a reasonable cable laying program. Then, professional tools and equipment are used to lay and fix the cables to ensure that the cable routing and fixing points meet the design requirements. Finally, carry out system debugging and testing to ensure the normal operation of the broadcasting system and sound quality.

9. After-sales maintenance & technical support

TST CABLES provides comprehensive after-sales maintenance and technical support services. Once there is a problem or failure in the cable of the aircraft cabin broadcasting system, our professional team will respond quickly to provide effective solutions and technical support. At the same time, we also regularly inspect and maintain the cables to ensure the long-term stable operation of the broadcasting system.

10. Actual Cases

In order to improve the passenger experience and service quality, a well-known airline in a first-tier city in China decided to carry out a comprehensive upgrade of the cabin broadcasting system of its main aircraft models. The main goal of the project is to optimize the sound quality of the broadcasting system, improve the stability of signal transmission, and ensure that the broadcasting system can quickly and accurately deliver information in case of emergency.

The upgraded cabin radio system has shown excellent performance in actual operation. The sound quality is clear and the volume is even, providing passengers with a better listening experience. At the same time, the stability of signal transmission has also been significantly improved, and the failure rate of the broadcast system has been greatly reduced. In case of emergency, the broadcasting system is able to deliver instructions and prompts quickly and accurately, providing an important safety guarantee for the crew and passengers.

In addition, the cable solution has been highly recognized by the airlines. They said that TST CABLES’ cable solution not only meets their performance requirements, but also provides professional installation and maintenance services, which saves them time and effort.

Other solutions for cables in aviation applications.


10 years of experience

Specializing in the production of railway cables for 10 years

Engineer-to-engineer one-on-one support

Engineers provide one-on-one service to assist with product selection and problem-solving

Customization according to requirements

With a strong R&D team, we support customized cables based on specific needs

Quality certification

Stringent adherence to industry standards, complete certification

Fully testing facilities

Various tests based on customer requirements

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