Time-Frequency Encyclopedia

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2020

Zhongxin Chuangwei provides a precision clock to Inner Mongolia Desheng Industrial Group.

Zhongxin Chuangwei provides a precision clock to Inner Mongolia Desheng Industrial Group.

Recently, Inner Mongolia Desheng Industrial Group issued a request for a time server. Beijing Zhongxin Chuang promptly collaborated to develop a detailed proposal and recommended its self‑developed and manufactured DNTS‑92S‑OGB clock server 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 the clock synchronization equipment project from Inner Mongolia Desheng Industrial Group.

Desheng Group is a key enterprise under the “Double Hundred Billion Project” and a pilot unit for the circular economy in the Inner Mongolia Autonomous Region, and it ranks among the region’s top 100 tax-paying companies.

Inner Mongolia Desheng Industrial Group conducted an in-depth evaluation of the DNTS-92S-OGB clock 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, proceeding to place a successful order and put the system into operation.

The DNTS-9S network time server, developed by Beijing Zhongxinchuang Technology Co., Ltd., is an intelligent, high-precision NTP network time server. The DNTS-9S obtains standard time information from systems such as GPS, BeiDou, GLONASS, Galileo, 4G, and CDMA, and provides standard time services over the network via NTP/SNTP or other network protocols. Devices in the network that require time synchronization—such as personal computers, servers, and controllers—can thereby synchronize with international standard time.

When used in conjunction with GNSS satellite receivers, priority can be configured, supporting single‑receiver/dual‑receiver and single‑antenna/dual‑antenna setups; each receiver can be set to time‑synchronization mode either independently or in combination. If both receivers—and any other available time sources—lose signal, the DNTS‑9S relies on its built-in temperature‑controlled crystal oscillator or rubidium atomic clock for holdover, continuously providing external time services. Leveraging all‑digital phase‑locked loop technology and a frequency‑control algorithm, it achieves superior holdover accuracy and more precise time dissemination.

In addition to serving as a primary‑level network time‑synchronization device, the DNTS‑9S can also function as a secondary‑level time server, enabling more effective time synchronization in large‑scale network environments. It provides highly accurate standard time signals for distributed networks, computer security systems, file management systems, e‑commerce platforms, online B2B systems, and cloud database storage and maintenance, among others. The product has been successfully deployed across government, finance, mobile communications, public security, petroleum, power, transportation, industrial sectors, and national defense.

The DNTS-9S network time server is extremely easy to install and use: simply connect the satellite receiving antenna and plug the network port into a network switch, and you can achieve time synchronization across all devices on the network.

Network protocol	NTP v1, v2, v3, and v4 (RFC 1119 and RFC 1305), SNTP (RFC 2030), Authentication (RFC 1321), Telnet (RFC 854), UDP NTP Unicast, Broadcast, Multicast, Autokey, TIME (RFC 868), FTP (RFC 959), DAYTIME (RFC 867), DHCP (RFC 2131)
	HTTP/SSL/HTTPS (RFC 2616), SSH/SCP (Internet Draft), SNMP v1, v2c, and v3, MIB II (RFC 1213), RSA asymmetric encryption, MD5 authentication, SHA authentication, AES encryption, DES encryption, RC4 encryption.
	IPv4, IPv6, IPv4/IPv6 Hybrid
	Supports NTP Peer Client/Server Broadcast Multicast
Server performance	GNSS reference mode, Tier‑1 network time server, with an internal synchronization accuracy of 20 ns.
	User terminal synchronization timing accuracy: 0.1–2 ms (typical value on a local area network)
	User capacity: Supports tens of thousands of clients.
	NTP request rate: 50,000 requests per second per network port (a test report from the National Time Service Center is available).
	It can be used as a client to synchronize with other NTP network time servers.
	Supports logging up to 100,000 entries.
	High-performance, wide-temperature server motherboard, based on a deeply customized Linux operating system, suitable for a variety of demanding working environments.
	1pps signal and the UTC (NTSC) master clock 1pps signal, with a timing accuracy (24-hour average) ≤ 5 ns (a test report from the National Time Service Center can be provided).
	1pps signal and the UTC (NTSC) master clock 1pps signal, with timing stability (24-hour standard deviation) ≤ 10 ns (a test report from the National Time Service Center can be provided).
	Temperature‑compensated crystal oscillator (optional depending on model): Timing accuracy: standard configuration better than 8.6 µs/day.
	Rubidium atomic clock (optional depending on model): Timing accuracy: standard configuration better than 500 ns/day.
Receiver	72-channel timing‑grade GNSS receiver, with optional multi‑source time synchronization via GPS, BDS, GLONASS, Galileo, 4G, and CDMA. Users can manually select single-GPS, single-Beidou, or dual-satellite GPS+Beidou mode via command.
	UTC synchronization accuracy: 20 ns (RMS)
	Tracking and lock‑on sensitivity can reach −166 dBm.

With 18 years of industry experience, our company has established a strong corporate reputation and brand image, serving clients from other well-known enterprises, including:

Shenzhen-based 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 Tobacco (Yunnan) Reconstituted Tobacco Leaf Co., Ltd., BOE Technology, Lenzing (Nanjing) Fibers Co., Ltd., Taiwan’s Formosa Plastics, Weihai Triangle Tire, Henan Huayuan Photovoltaic Technology, Jiaxing Duoneng Automation Equipment Co., Ltd., Tangshan Sanyou Chlor-Alkali 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 sincere 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 to the Chengdu Railway Bureau.

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Zhongxin Chuangwei provides a precision clock to the Chengdu Railway Bureau.

Zhongxin Chuangwei provides precision clocks to the Xi’an Flight Automatic Control Research Institute of AVIC.