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2024

Zhongxin Chuangwei provides a precision clock for the Summer Palace.

Zhongxin Chuangwei provides a precision clock for the Summer Palace.

Recently, the Summer Palace issued a request for a time server. Beijing Zhongxin Chuang Company responded proactively by preparing a detailed proposal and recommending its self-developed and manufactured DNTS‑9 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 the time‑synchronization project at the Wenchang Courtyard of the Summer Palace.

The Summer Palace, China Qing Dynasty period Royal Gardens , formerly known as Qingyi Garden , located in the western suburbs of Beijing, 15 kilometers from the city center, covering an area of approximately 290 hectares, and with… Old Summer Palace Adjacent. It is based on Kunming Lake 、 Longevity Hill As the base, with Hangzhou West Lake Built on the basis of this model and drawing inspiration from the design techniques of Jiangnan gardens, it is a large-scale landscape garden and also the best-preserved imperial retreat and royal pleasure garden. It is renowned as the “Museum of Imperial Gardens” and is designated as a national key tourist attraction.

The Summer Palace conducted an in-depth evaluation of the DNTS‑9 time server, independently developed by Zhongxin Chuang, and the results consistently exceeded the specified performance parameters. The client was highly satisfied with both our product quality and after-sales service, resulting in a successful procurement and deployment.

The DNTS-9 network time server, developed by Beijing Zhongxinchuang Technology Co., Ltd., is an advanced, intelligent, high-precision NTP network time server. The DNTS-9 obtains standard time information from navigation and positioning satellite systems such as GPS, BeiDou, GLONASS, and Galileo, 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 synchronize with international standard time. When using GNSS satellite receivers, users can define priority levels and configure single-receiver/dual-receiver or single-antenna/dual-antenna setups; each receiver can be set to operate in standalone or combined timing modes. If both receivers and other available time sources lose signal, the DNTS-9 relies on its built-in temperature-compensated crystal oscillator or rubidium atomic clock to maintain accurate timekeeping and continuously provide time services to external clients.

In addition to serving as a primary‑level network time‑synchronization device, the DNTS‑9 can also function as a secondary‑level time server, enabling more effective time synchronization in large‑scale network environments. It provides precise standard time signals for systems such as distributed networks, computer security systems, file management systems, e‑commerce platforms, online B2B systems, and cloud database storage and maintenance. The DNTS‑9 has been successfully deployed across government, finance, mobile telecommunications, public security, petroleum, power, transportation, industrial, and defense sectors. Installation and operation of the DNTS‑9 network time server are exceptionally straightforward: simply connect the satellite receiving antenna and link the Ethernet port to a network switch to achieve time synchronization for 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
Timekeeping mode	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: 25,000 requests per second (per network port)
	It can be used as a client to synchronize with other NTP network time servers.
	Supports logging up to 100,000 entries and allows storage capacity to be expanded as needed.
Receiver	72-channel timing‑grade GNSS receiver, multi‑constellation GPS/BeiDou/GLONASS, supports RAIM, with optional CDMA support.
	UTC synchronization accuracy: 20 ns (RMS)
	Tracking and lock‑on sensitivity can reach −166 dBm.
Timekeeping function	Temperature‑compensated crystal oscillator (optional, depending on model): Timing accuracy: standard configuration优于8.6 µs/day (configurable upgrades available to meet varying requirements).
Timekeeping function	Rubidium atomic clock (optional depending on model): Timing accuracy: standard configuration better than 500 ns/day (configurable upgrades available to meet specific requirements).
Front panel	VFD high-brightness LCD screen
	Displays GPS/BD satellite acquisition status, time, number of GPS/BD satellites, IP addresses of each network port, system operating status, and more.
	Six tri-color indicator lights: PWR, ANT, SAT, LOCK, NTP, ALARM
	Signals indicating power, antenna, satellite, lock, timing, and alarms.

With 17 years of industry experience, our company has established a strong corporate reputation and brand image, serving government-sector clients as well as:

Institute of Physics, Chinese Academy of Engineering; Ministry of Railways of the People’s Republic of China; Communications Department, Headquarters of the People’s Armed Police Force; National Astronomical Observatories, Chinese Academy of Sciences; China Academy of Launch Vehicle Technology; National Radio and Television Monitoring Center; State Administration of Radio, Film, and Television; State Grid Data Center; National Radio Monitoring Center; National Emergency Command Center; Civil Aviation Administration of China; Detection Center, China Meteorological Administration; China Arctic Yellow River Station; China Welfare Lottery Center; Great Wall Museum of China; Political and Legal Committee of Hebei Province, CPC; China Aerospace Information Co., Ltd.; Anhui Provincial Seismological Bureau; Forest Fire Prevention Command Center, Beijing Municipal Bureau of Gardens and Greenery; Beijing Economic Information Center; People’s Procuratorate of Nankai District, Tianjin. , the Tianma Radio Telescope of the Chinese Academy of Sciences, the Beijing Municipal People’s Procuratorate, the Miyun District People’s Court of Beijing, 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 the enterprise and society.

Zhongxin Chuangwei provides a precision clock for Yangzi Petrochemical.

Zhongxin Chuangwei provides an NTP time server to the Yixing Bureau of Human Resources and Social Security.

Zhongxin Chuangwei provides a precision clock for Yangzi Petrochemical.

Zhongxin Chuangwei provides an NTP time server to the Yixing Bureau of Human Resources and Social Security.