Time-Frequency Encyclopedia

Focus on time and frequency, precise and stable.

11

2022

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01

Zhongxin Chuangwei provides Siemens with a precision clock.

Zhongxin Chuangwei provides Siemens with a precision clock.

 

Recently, Siemens issued a request for proposals for clock synchronization servers. Beijing Zhongxin Chuang promptly collaborated to develop a detailed solution and recommended its self‑developed and manufactured DNTS‑8 model as the bid candidate. Following a highly competitive bidding process, Zhongxin Chuang stood out thanks to its high‑quality products and comprehensive after‑sales service, ultimately securing the Siemens time server project.

Siemens AG It is a global technology leader founded in 1847, with operations spanning more than 200 countries worldwide, and focuses on electrification, automation, and digitalization.

Since entering China in 1872, Siemens has, for more than 140 years, consistently provided comprehensive support for the country’s development through innovative technologies, outstanding solutions, and high‑quality products. With its superior quality, trusted reliability, cutting‑edge technological achievements, and relentless pursuit of innovation, Siemens has established a leading position in the Chinese market. In fiscal year 2015 (October 1, 2014, to September 30, 2015), Siemens recorded total revenues of €6.94 billion in China, employing over 32,000 people and operating 20 R&D centers and 77 business entities*. Siemens has become an integral part of China’s social and economic landscape and is committed to working hand in hand with China to advance sustainable development.

Siemens conducted an in-depth evaluation of the DNTS‑8 series time servers independently developed by Zhongxin Chuang, and the results consistently exceeded the specified performance parameters. Siemens also expressed strong satisfaction with our product quality and after-sales service, leading to a smooth procurement and successful deployment.

 

 

The DNTS-84-OG time server, developed by Beijing Zhongxinchuang Technology Co., Ltd., is a high-tech, intelligent, stand-alone clock synchronization server that operates based on the NTP/SNTP protocols and delivers high‑precision time. The DNTS-84-OG obtains standard clock signal information from GPS satellites and transmits this data across the network, enabling devices requiring time signals—such as computers and controllers—to synchronize with the standard clock. When all receivers lose signal, the DNTS-84-OG relies on its built-in temperature‑compensated crystal oscillator for timekeeping, achieving a timing accuracy of up to 1E-9. The DNTS-84-OG disseminates standard clock information via TCP/IP networks and supports multiple popular time‑distribution protocols, including NTP and time/UDP; it also accommodates custom‑defined time‑broadcast packets with configurable UDP ports. 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-84-OG supports the broadcast mode of the SNTP protocol. It features four adaptive 10/100M Ethernet ports, which are physically isolated from one another to ensure data security, allowing full configuration within the same subnet or across different subnets, with redundancy: a failure in one port will not affect the normal operation of the others. Each Ethernet port must be assigned an independent IP address.

 

Time synchronization accuracy: 0.5 ms (typical value on a local area network)

Supported protocols: NTP/SNTP V10, V20, V30, V40, SNMP, UDP, Telnet, IP, TCP

Number of network ports: 4 × 10/100 Mbps adaptive Ethernet ports

CPU: Dual CPUs operate simultaneously; the 32-bit CPU is a dual-core processor, significantly enhancing performance.

Satellite receiver: GPS

Timekeeping function: Crystal oscillator with temperature compensation, accuracy up to 1E-9.

Throughput: Can handle 2,000 time requests per second.

Timekeeping records: 50 entries saved

Local Alarm: Dry Contact Alarm

Output interfaces: RS232/485, IRIG-B, 10M, 1PPS,

With 20 years of industry experience, our company has established a strong corporate reputation and brand image, serving clients across various sectors, including:

Shenzhen Huawei, ZTE Corporation, Ericsson, Datang Telecom, Digital China (China) Co., Ltd., Unisplendour Corporation, Shanghai Bell, Honeywell (China) Co., Ltd., Yokogawa Electric (China) Co., Ltd., Emerson (China) Motor Co., Ltd., Nokia, Siemens (China) Co., Ltd., ABB China, Schneider Electric (China) Co., Ltd., Zhejiang Dahua Group, Sail Network Technology Co., Ltd., Qingdao Hisense Network Technology Co., Ltd., Fujian Newland Software Engineering Co., Ltd., Beijing HuaSheng TianCheng Technology Co., Ltd., Fujian Rongji Software Co., Ltd., Shanghai Baoxin Software Co., Ltd., Shanghai Tianbai Broadband Network Technology Co., Ltd., China National Tobacco (Yunnan) Reconstituted Tobacco Leaf 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 achieve mutual success and shared progress for both our enterprise and society.