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2019

Zhongxin Chuangwei provides a precision clock for Daqing Petrochemical.

Zhongxin Chuangwei provides a precision clock for Daqing Petrochemical.

Recently, Daqing Petrochemical issued a requirement for a clock synchronization server. Beijing Zhongxin Chuang promptly collaborated to develop a detailed proposal and recommended its self‑developed and manufactured DNTS‑74 model as the bid‑winning product. Following a fiercely competitive bidding process, Zhongxin Chuang stood out thanks to its high‑quality products and comprehensive after‑sales service, ultimately securing the contract for Daqing Petrochemical’s time‑server project.

Daqing Petrochemical Company is a regional subsidiary of China National Petroleum Corporation. It uses crude oil, light hydrocarbons, and natural gas from the Daqing Oilfield as its primary feedstocks, engaging in the production of refined petroleum products, fertilizers, ethylene, plastics, liquid chemicals, rubber, and acrylic fibers. The company also provides engineering and technical services, mechanical manufacturing and processing, production‑related technical support, and comprehensive mining‑area services, making it a super‑large integrated petrochemical enterprise.

Daqing Petrochemical conducted an in-depth evaluation of the DNTS-74 time server, independently developed by Zhongxin Chuang. The results consistently exceeded the specified performance parameters, and the company expressed high satisfaction with both our product quality and after-sales service, leading to a successful procurement and deployment.

The network time server DNTS-7, developed by Beijing Zhongxinchuang Technology Co., Ltd., is a high-tech, intelligent, stand-alone time server based on the NTP/SNTP protocol. DNTS-7 acquires standard clock signal information from BeiDou or GPS geostationary satellites and transmits this information across the network, enabling devices that require time signals—such as computers and controllers—to synchronize with the standard clock.

Standard clock information is transmitted over TCP/IP networks. The DNTS-7 supports multiple popular time‑distribution protocols, such as NTP and time/UDP, and also accommodates Sinotech’s proprietary time‑broadcast packets on a configurable UDP port. The port numbers for NTP and time/UDP are fixed at 123 and 37, respectively, as specified in RFC‑123 and RFC‑37. Additionally, the DNTS‑7 supports the broadcast mode of the SNTP protocol.
DDNTS-74 features four 10/100 Mbps adaptive Ethernet ports, with physical isolation between ports to ensure data security. All ports can be configured to the same network segment or to different segments, providing redundancy—failure of one port will not affect the normal operation of the others. Each Ethernet port must be assigned an independent IP address.

Timing accuracy	1-10ms
Supported protocols	NTP/SNTP V10, V20, V30, V40, SNMP, UDP, Telnet, IP, TCP
Number of network ports	4 × 10/100M adaptive ports
CPU	Dual CPUs operate simultaneously; the 32-bit CPU is a dual-core processor, delivering significantly improved performance.
Throughput	Can handle 2,000 time requests per second.
Timekeeping Record	Save 50 items
Local Alarm	LED indicator
Output	1 RS232 port, 1 RS485 port, 1 1PPS signal
Serial input	1 RS232 port, can serve as an external time source.
Optional module	B-code input, B-code output; GPS receiver; rubidium atomic clock with a daily frequency drift of 1E-12; temperature‑controlled crystal oscillator with a daily aging rate of 1E-10; antenna feedline surge arrester, and 50‑, 80‑, and 100‑meter cables.

With 17 years of extensive industry experience, our company has established a strong corporate reputation and brand image, serving clients in the petroleum sector, including:

Sinopec, Shanghai Petrochemical, Tianjin Petrochemical, Yanshan Petrochemical, Zhanjiang Petrochemical, Langfang Petrochemical, Gansu Petrochemical, Anqing Petrochemical, Zhongyuan Petrochemical, Daqing Oilfield, Daqing Refining & Chemical, Qinshan Nuclear Power Plant, Kunlun Gas, Hope Gas, PetroChina Yellow Sea Storage Base, Beijing Shougang Co., Ltd., Hebei Shougang Qian’an Iron & Steel Co., Ltd., Fujian Sangang Mingguang Co., Ltd., Angang Steel Co., Ltd., Chongqing Iron & Steel (Group) Co., Ltd., Tianjin Jinwanhang Petroleum Materials & Equipment Co., Ltd., and others.

The choice of numerous departments and enterprises reflects recognition of Zhongxin Chuang’s products and services. Our company will continue to uphold our corporate mission of “Innovative Technology, Serving a Better Life,” working in close collaboration with partners across all sectors to jointly achieve win‑win outcomes and shared progress for both our enterprise and society.

Zhongxin Chuangwei provides a precision clock for the Hebei Expressway project.

Zhongxin Chuangwei provides a time and frequency reference for Weihai Triangle Tire.

Zhongxin Chuangwei provides a precision clock for the Hebei Expressway project.

Zhongxin Chuangwei provides a time and frequency reference for Weihai Triangle Tire.