Zheng tai high-speed railway, is a high-speed city in Henan province and Taiyuan, Shanxi province high-speed railway, series of Jiaozuo, Jincheng, Changzhi, Jinzhong and other places, is the medium-and long-term railway network planning "eight vertical and eight horizontal" one of the main part of the "Nantong", from Zhengzhou to Jiaozuo section, Taiyuan to Jiaozuo section two parts.

Lianzhen high-speed railway is a high-speed railway connecting Lianyungang City of Jiangsu Province to Zhenjiang City. It is a north-south high-speed railway in Jiangsu Province. It is an important channel through southern Jiangsu, central Jiangsu and northern Jiangsu, and an important part of the railway network of central Jiangsu and northern Jiangsu.

The Yantai persistent CJ-M9300IIIG system used by the Zhengzhou-Tai high-speed railway and Lianzhen high-speed railway is a high-performance time synchronization system with ARM + FPGA architecture, which provides high-precision and high-synchronization timing service for more than 20 intelligent systems such as high-speed railway scheduling, signal, security, broadcasting, ticket sales and customer service.

As a clock server representing the highest level in China, CJ-M9300IIIG has adopted Yantai's lasting and unique core technology and patent algorithm by receiving the Beidou satellite signals, and its timing accuracy, reliability and stability have all reached the international first-class level.The output synchronous signals include: NTP, PTP, IRIG-B code, serial port to time message, and pulse signal 1PPS, etc., which can meet the multi-scene time requirements.

As a leading enterprise in the time synchronization system in China, persistent Watch will continue to adhere to the corporate spirit of integrity, innovation, responsibility and gratitude, continue to provide quality products and services for the society, and make new contributions to the development of China's rail transit.