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Application of Cables in Passenger Information Systems (PIS)
1.Scenario Introduction
Internationally, more than 120 million people commute by subway every day. In order to ensure the safety and efficiency of the railroad system, more and more advanced transportation system technologies, such as PIS passenger information system, are being widely deployed. The PIS system is actually at work when passengers hear train arrival announcements about routes, timetables, delays, and operational information displayed on the train, etc. during their daily commute. As a key component of the PIS system, the performance and quality of the cable directly affects the stability of the system and passenger satisfaction. Therefore, a professional rail transportation PIS cable solution is crucial.
2. Pain point analysis
In the actual operation of rail transit PIS system, there are many pain points in cables, such as unstable signal transmission, poor environmental adaptability, high reliability requirements. These problems seriously affect the normal operation of the PIS system and passenger travel experience.
3. Rail transit PIS (passenger information system) in the cable requirements
For the characteristics of the PIS system, the cable needs to meet the following requirements:
Stable transmission performance: to ensure accurate and efficient transmission of video, audio and other multimedia information.
Strong anti-interference ability: effectively inhibit electromagnetic interference to ensure signal clarity and stability.
Good environmental adaptability: able to work stably in high temperature, low temperature, humidity and other harsh environments.
4. The cable certification standards
In order to ensure that the performance and quality of cables reach the highest standards in the industry, TST CABLES products fully comply with the following international and domestic certification standards:
UL Certification: The Underwriters Laboratories of the United States of America conducts rigorous testing of the electrical and mechanical properties of the cable to ensure that it meets safety standards.
CE certification: A mark of conformity with the requirements of the European Union directives, indicating that the cable meets the requirements of the European Union’s regulations on safety, health, and environmental protection.
RoHS certification: a directive restricting the use of certain hazardous substances, ensuring that the cables are environmentally friendly during production and use.
In addition, our cables meet specific standards for the rail transportation industry, such as IEC 60332 (standard for combustion performance of cables) and EN 50264 (standard for cables for rail transportation), GB/T 2423.1, GB/T 2423.2, IEC 60068-2-1, IEC 60068-2-2, EN 60068-2-1, EN 60068-2-2, etc. to ensure that the cables can be used in the rail transportation industry. 2-2, etc. to ensure the safety and reliability of cables in rail transportation applications.
5. Cable Selection
For the special requirements of rail transportation PIS system, we recommend the following cable types:
Low-smoke halogen-free flame-retardant cables: with the characteristics of low-smoke, halogen-free and flame-retardant, they can reduce the generation of smoke and toxic gases in case of fire and improve the safety of passenger evacuation.
Shielded cable: adopting special shielding structure, effectively suppressing electromagnetic interference and ensuring the stability of signal transmission.
Flexible cable: with good flexibility and bending performance, adapting to the complex and changing wiring environment inside the train.
Selection parameters for reference (can be customized according to actual needs)
Rated voltage: 300VAC
Temperature range: -40°C to 90°C
Bending radius: 6D (D refers to the outer diameter of the cable)
Characteristic impedance: 100Ω+15Ω (100MHz)
Attenuation: <3.1dB/100m (1MHz), <32dB/100m (100MHz)
Operating capacitance: <5.6nF/100m (1.0kHz)
Ground capacitance: <160pF/100m (1.0kHz)
Return loss: >20dB (14MHz), <19dB (100MHz)
Tin-plated copper Anti-oxidation High conductivity Wear-resistant Anti-oxidation No deformation
6.Product Characteristics
The cable products in this solution have the following characteristics:
Excellent weatherproof performance: made of special materials, able to maintain stable electrical performance under extreme climatic conditions.
Strong shielding performance: built-in multi-layer shielding structure, effectively resist electromagnetic interference and ensure the accuracy of data transmission.
High bandwidth and low attenuation: adopting high-quality conductor and insulating materials to realize high-speed and stable data transmission.
Recommended Products
PIS (Passenger Information System) system cables are high temperature resistant and have good bending properties. They are an important part of public transportation vehicles and are responsible for transmitting information and messages to passengers.
7.Technical Tests
To ensure that the performance and quality of the cables are at their best, a series of rigorous technical tests are carried out, including:
Electrical performance test: test the electrical parameters of the cable such as resistance, insulation resistance, capacitance, etc. to ensure that it meets the design requirements.
Mechanical performance test: test the cable’s tensile strength, bending performance, abrasion resistance and other mechanical properties to ensure its stability and reliability during train operation.
Environmental adaptability test: Place the cable in high temperature, low temperature, humidity and other harsh environments for a long time to verify its environmental adaptability.
Anti-interference test: test the signal transmission performance of the cable in the electromagnetic interference environment to ensure that it has good anti-interference capability.
8.Cable Laying Installation and Commissioning
TST CABLES provides professional cable laying, installation and commissioning services to ensure the perfect connection between the cable and PIS system. According to the actual structure of the train and wiring requirements, we will develop a reasonable cable routing program, and strictly in accordance with the relevant standards and norms for the laying and installation. At the same time, we will also assist the customer to carry out the debugging work of the system to ensure the accuracy and stability of signal transmission.
9. After-sales maintenance & technical support
TST CABLES provides comprehensive after-sales maintenance and technical support, including cable regular inspection, troubleshooting, repair and replacement services, etc. TST CABLES professional team will provide technical support and solutions for customers at any time to ensure the stable operation of PIS system cable and customer satisfaction.
In summary, this rail transportation PIS system cable solution has excellent product performance, strict quality control and comprehensive technical support. We will continue to be committed to providing customers with better products and services to promote the sustainable development and safe operation of the rail transportation industry.
10. Practical examples
This solution has been successfully applied in the vehicle sensor cable system of many high-speed railroads and subway lines in China and overseas.TST CABLES EN50264 series and EN50306 series cable products for rail transportation have obtained CRCC certification. At present, more than 500000 cables have been installed in more than 3500 high-speed rail coaches, with a running mileage of more than 6,000,000 kilometers. Taking the metro lines in Shenzhen as an example, after adopting TST CABLES solution, the failure rate of PIS system has been reduced and the stability of signal transmission of PIS system has been greatly improved. At the same time, the environmental performance and safety of the cables are also highly recognized by customers.
In summary, TST CABLES rail transit PIS system cable solution has excellent product performance, strict quality control and comprehensive technical support, which can meet the high requirements of rail transit industry for PIS system cable. We will continue to dedicate ourselves to providing customers with better products and services to promote the sustainable development and safe operation of the rail transportation industry.
11.Certification Standards
To ensure that the performance and quality of the cables meet the highest standards in the industry, TST CABLES products are fully compliant with the following international and domestic certification standards:
UL Certification: The Underwriters Laboratories of the United States of America conducts rigorous testing of the electrical and mechanical properties of the cable to ensure that it meets safety standards.
CE certification: A mark of conformity with the requirements of the European Union directives, indicating that the cable meets the requirements of the European Union’s regulations on safety, health, and environmental protection.
RoHS certification: a directive restricting the use of certain hazardous substances, ensuring that the cables are environmentally friendly during production and use.
In addition, our cables meet specific standards for the rail transportation industry, such as IEC 60332 (standard for combustion performance of cables) and EN 50264 (standard for cables for rail transportation), GB/T 2423.1, GB/T 2423.2, IEC 60068-2-1, IEC 60068-2-2, EN 60068-2-1, EN 60068-2-2, etc. to ensure that the cables can be used in the rail transportation industry. 2-2, etc. to ensure the safety and reliability of the cables in rail transportation applications.
In addition, the cable products also need to pass the specific certification of the wind power industry to ensure that they are adapted to the special operating environment of wind farms.
Other solutions for cables in railway applications.
WHY CHOOSE TST
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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