Project Introduction
Location: China
Project Name: ORing Builds a Smart Communication Backbone for COMAC’s C919 Aircraf
As large commercial aircraft continue to evolve toward greater intelligence and system integration, the cabin core system has become the central control hub of the aircraft. It is responsible for coordinating key functions such as lighting, temperature control, emergency indications, and public address systems, while also enabling real-time data exchange. As a result, a high-bandwidth, low-latency, and highly reliable communication network is essential to ensure the seamless operation of cabin control systems and onboard services.
The C919, independently developed by Commercial Aircraft Corporation of China (COMAC), is China’s first large jet airliner with full proprietary intellectual property rights. To meet the stringent communication requirements of its intelligent cabin systems, COMAC adopted ORing Industrial Networking’s communication solution. ORing designed a tailored, high-reliability network architecture for the C919, ensuring stable and efficient operation even in demanding airborne environments.
Project Requirement
- A highly stable communication backbone
- Real-time data exchange and centralized control across multiple systems
- Compliance with stringent aviation requirements
- Secure isolation and stable operation between different cabin systems
Solution
In compliance with RTCA DO-160G aviation standards, ORing developed a core Layer 3 switch designed specifically for the C919. Serving as the central node of the cabin communication backbone, it delivers high reliability and high-performance data transmission.
The switch features 22 Gigabit ports, enabling it to aggregate data from various cabin systems and establish a robust communication backbone. Designed with low power consumption and strong anti-interference capabilities, the switch operates reliably in harsh aviation environments.
The switch alsoc9 supports Layer 3 routing protocols such as OSPF and PIM-SM/DM, ensuring efficient and precise data transmission across cabin systems. VLAN technology is used to isolate the cabin core systems, in-flight entertainment systems, and avionics systems, preventing signal interference. Controlled inter-system data exchange is achieved through Layer 3 routing mechanisms.
In deployment, each C919 aircraft is equipped with a core switch configured in a star topology, connecting systems such as lighting, public address, and environmental control to cabin management controllers (CMC). These controllers, together with the core switch, form a Gigabit Ethernet ring backbone. This architecture enables centralized monitoring and control of the entire cabin system, enhances system redundancy, and significantly reduces the complexity of maintenance and management.
System Structure
Why ORing Industrial Networking
- Compliance with RTCA DO-160G aviation environmental standards
- Highly reliable Gigabit communication backbone architecture/li>
- Advanced Layer 3 routing and VLAN segmentation mechanisms/li>
- Extensive expertise in industrial networking technologies and real-world deployments/li>
