Time-Frequency Encyclopedia

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2019

Congratulations to the Capital Institute of Physical Education on its procurement of XinChuang network time server equipment.

Congratulations to the Capital Institute of Physical Education on its procurement of XinChuang network time server equipment.

Recently, the Capital Physical Education College issued a procurement announcement for a time server. Beijing Zhongxin Chuang Co., Ltd. proactively collaborated with the college to develop a detailed proposal and recommended its independently 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 Capital Physical Education College’s time‑server project.

Capital Physical Education College is a sports-oriented institution under the jurisdiction of the Beijing Municipal Government. Ordinary undergraduate institutions , located at Beijing City Haidian District, bordering to the west Zhongguancun Science Park The district is bordered to the east by the Jimen Yanshu Scenic Area. The school was founded in 1956, originally named “Beijing Sports School.” In 1960, it was reorganized as “Beijing Institute of Physical Education,” and in 2000, it adopted its current name. Capital Physical Education College ”, in 2003 it obtained the authority to confer doctoral and master’s degrees, for… Institutions Accepting International Students on the Chinese Government Scholarship 。

Capital Physical Education Institute conducted an in-depth evaluation of the DNTS‑9 time server, independently developed by Zhongxin Chuang. The results consistently exceeded the specified performance parameters, and the institute 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-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 thereby synchronize with international standard time.

When used in conjunction with GNSS satellite receivers, priority can be configured; the system supports single‑receiver/dual‑receiver and single‑antenna/dual‑antenna configurations, with each receiver capable of operating in either standalone or combined timing modes. If both receivers and all 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, continuously providing time services to external users.

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.
Front panel	VFD high-brightness LCD display
	Displays GPS/BD satellite acquisition status, time, number of GPS/BD satellites, IP addresses of each network port, system operating status, and more.
	6 tri-color indicator lights: PWR, ANT, SAT, LOCK, NTP, ALARM
	Signals indicating power, antenna, satellite, lock, timing, and alarms.
Rear panel	GNSS antenna input: BNC, with 1–2 channels optional.
	NTP network port: 1–10 ports, with optional 10/100/1000 Mbps or 10 Gigabit Ethernet interfaces.
	Console-RS232: 1 port
	USB Interface: 1–8 channels optional, supporting USB 2.0/3.0; provides backup, restore, and upgrade functions.
	TOD: DB-91 bus, RS232/RS485 level, capable of outputting time, position, number of satellites, and other information.
	ALARM dry-contact alarm: 1–6 pairs optional, including satellite, power supply, antenna, port capacity, and other alarms.
	10M output: BNC, 1 channel, selectable sine wave or square wave, impedance: 50 ohms; frequency accuracy: <1E-12
	1 PPS output: BNC, TTL level, accuracy ≤ 10 ns (RMS)
	Dimensions: 1U/2U chassis

With 17 years of industry experience, our company has established a strong corporate reputation and brand image, serving educational institutions.

Our clients also include:

Peking University, Tsinghua University, the Central Party School, Tongji University, Wuhan University, Harbin Institute of Technology, the People’s Public Security University of China, Beihang University, China University of Petroleum, the National Academy of Administration, Nankai University, the China Academy of Traditional Chinese Opera, Beijing University of Science and Technology, Beijing University of Technology, North China Electric Power University, Beijing University of Mining and Technology, North China University of Technology, Beijing Foreign Studies University, Beijing Institute of Technology, Dalian Maritime University, Xidian University, Beijing Institute of Petrochemical Technology, Beijing Normal University, the Party School of the Beijing Municipal Health Bureau, Beijing Technology and Business University, Northeast Forestry University, Changchun University, Changsha University of Science and Technology, 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” and pursue the corporate goal of “Becoming a Creator of Exceptional Quality,” working in sincere collaboration with partners from all sectors to achieve mutual success and shared progress for both our enterprise and society.

Congratulations to Zhongwei Municipal Traditional Chinese Medicine Hospital on the procurement of the Zhongxin Clock Synchronization System.

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Congratulations to Zhongwei Municipal Traditional Chinese Medicine Hospital on the procurement of the Zhongxin Clock Synchronization System.

Congratulations to Zhongsha (Tianjin) Petrochemical on the procurement of the newly developed DNTS time synchronization equipment.