I. Project Name

China Aerospace Science and Technology Corporation Transportation Sector Clock Synchronization System Construction Project

II. Duration of Cooperation

2026  Year One Quarterly

III. Company Profile of the China Aerospace Science and Technology Corporation

China Aerospace Science and Technology Corporation is the core force behind China’s space program. With decades of expertise in the transportation sector, it has established a multi‑dimensional business portfolio encompassing smart mobility, rail transit, low‑altitude logistics, and intelligent transportation infrastructure. Leveraging its aerospace technological strengths, the Group has advanced deep integration between military and civilian applications. Its subsidiaries have successfully developed key systems such as rail‑transit train‑assisted tracking and early‑warning systems, multi‑target traffic‑monitoring radars, and large unmanned transport aircraft. These products have been deployed in critical applications—including urban subways, interregional logistics, and road‑traffic management—providing robust technical support for the transportation industry and underscoring the Group’s aerospace‑grade product quality and system‑integration capabilities.

IV. Purchased Products

DNTS-9 Type NTP Server (independently developed and manufactured by Beijing Zhongxin Chuang)

V. Customer Requirements

1. Provide a unified, precise time reference for the Group’s core business systems in the transportation sector—including drone logistics dispatch, rail transit monitoring, and smart traffic data transmission—ensuring temporal consistency across inter-system data exchanges.
2. The equipment must be capable of operating in complex environments, with resistance to high-altitude low temperatures, salt spray, and electromagnetic interference, thereby meeting the deployment requirements across diverse outdoor and indoor settings.
3. Support 7×24 Operates continuously around the clock, with high reliability and redundant backup capabilities to prevent interruptions in time synchronization services.
4. Compatible GPS / Beidou dual‑mode timing can seamlessly interoperate with existing multi‑vendor equipment and systems, supporting remote monitoring and fault alarms.
5. Time synchronization accuracy must reach the microsecond level, complying with the time synchronization standards for critical applications in the transportation industry.

VI. Solution

Beijing Zhongxin Chuang Based On DNTS-9 Type NTP Core technological advantages of the server, offering customers a customized, dedicated clock synchronization solution:

1. Core equipment deployment: adopts DNTS-9 Type NTP The server serves as the primary device, configured with a primary‑standby dual‑node redundancy architecture to ensure uninterrupted service in the event of a single-point failure.
2. Time‑synchronization mode design: supported GPS / Beidou dual-mode time synchronization with automatic signal source switching ensures timing stability and enhanced anti-interference performance.
3. Interface adaptation solution: provide RJ45 Ethernet interface, RS232/485 Auxiliary interface, compatible with protocols of the customer’s existing dispatch systems, monitoring platforms, data centers, and other equipment;
4. Environmental Adaptation Optimization: The device features a wide-temperature design ( -40℃~65℃ ), featuring salt-spray resistance, lightning protection, and electromagnetic interference immunity, and suitable for complex deployment environments such as high-altitude regions and outdoor settings;
5. Operations and maintenance management features: Integrates a remote monitoring platform, enabling real-time viewing of time synchronization status, fault alerts, and remote parameter configuration, thereby reducing O&M costs.

VII. Implementation Outcomes

1. Time synchronization accuracy meets the standard: The time synchronization accuracy of each core business system is maintained within ±1 μs Within this range, it meets the stringent time‑synchronization requirements of critical applications such as drone dispatch and rail transit operation monitoring.
2. Reliable operational stability: Equipment implementation 7×24 Operates continuously for hours, with a failure rate lower than 0.1% , successfully withstanding the adverse effects of complex environmental conditions such as high-altitude low temperatures and electromagnetic interference, thereby ensuring continuous business operations;
3. Excellent system compatibility: Seamlessly integrates with customers’ existing multi-vendor equipment and business systems, with no compatibility issues reported and improved data‑exchange efficiency. 30%；
4. Improved operational efficiency: Remote monitoring and alerting enable rapid fault localization and resolution, reducing O&M response time to 15 Within minutes, reduce manual operations and maintenance costs.

VIII. Application Cases

This DNTS-9 Type NTP Servers have been widely deployed across numerous organizations, including the Ministry of Railways of the People’s Republic of China, China Railway Signal & Communication Group, Civil Aviation Administration of China, Shandong Provincial Department of Transportation, Beijing Railway Bureau, Shanghai Railway Bureau, Guangzhou Railway Bureau, Shandong Air Traffic Management Bureau, Dalian Air Traffic Management Bureau, Kunming Air Traffic Management Bureau, Beijing Daxing International Airport, Sichuan Provincial Department of Transportation, Nanning Railway Bureau, Zhengzhou Railway Bureau, Kunming Railway Bureau, Xinjiang Railway Bureau, Jinan Railway Bureau, Wuhan Municipal Transportation Administration, China Railway Major Bridge Engineering Group, the Hong Kong–Zhuhai–Macao Bridge, Xinjiang Air Traffic Management Bureau, Wenzhou Air Traffic Management Bureau, Chongqing Air Traffic Management Bureau, Chengdu Air Traffic Management Bureau, Beijing Capital International Airport, Hangzhou Xiaoshan International Airport, Shenzhen Bao’an Airport, Xuzhou Airport, the Fire Safety Management Center of Tianfu Airport, the Meteorological Station at Jilin Longjia International Airport, the Zhoushan Port and Shipping Administration, the China Railway Communications & Signaling Research & Design Institute in Beijing, China Shipbuilding Industry Corporation, CSSC Haizhuang Wind Power Co., Ltd., the Ningbo Public Transport Center, Hebei Expressway, Hebei Chengchao Expressway, the Langfang Expressway Toll Station, the Lianhuo Expressway, the Jingxiong Expressway Management Center, the Yingjisha South Toll Station, and various expressways throughout Wuhan. ETC Yinzhou Highway Administration Section, the Meishan section of the Yingguanghong Expressway, the project to abolish provincial border toll stations on Xinjiang’s expressways, the Dezhou–Shangqiu section of the National Expressway, the Anlin Expressway project to eliminate provincial border toll stations, the Shuohuang Railway, China Communications Construction Company First Highway Engineering Bureau Group, and the Angolan Railway. “ Five stations, one line ” Projects, Changzhi Chanrong New City Investment and Operation Group, Yinzhou District Highway Management Section, Wuyang Expressway, Jilin Air Traffic Control, Dalian Port Logistics Network, Chengdu Railway Bureau, Haining ENN Smart Operations Center, Northwest Air Traffic Management Bureau, Xinjiang Communications Investment Group, Henan Railway Bureau, China Aerospace, Chengdu Tianfu International Airport, Fuzhou Changle Airport, Urumqi Railway Bureau, Shanghai Fubao Port Services, China State Railway Group, and others.