Time-Frequency Encyclopedia

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2025

Congratulations to Jilin Police College on the procurement of Zhongxin Chuang Network time server equipment.

Congratulations Jilin Police College has procured a XinChuang network time server device.

Recently, Jilin Police College A procurement notice for a time server has been issued. Beijing Zhongxin Chuang Company has actively collaborated to prepare a detailed proposal for the user and recommended a product independently developed and manufactured by Zhongxin Chuang. As the bidding product for this round, the DNTS‑9 model underwent a fiercely competitive tender process. Relying on its high‑quality products and comprehensive after‑sales service, Zhongxin Chuang outperformed competitors and ultimately emerged victorious. Jilin Police College Time server project.

Jilin Police College, located in Changchun, Jilin Province, is the only public security institution of its kind in Jilin Province. Undergraduate institution , whose predecessor was established in In 1949, it was the Jilin Provincial Public Security Cadre School; in 1985, with approval from the former… State Education Commission The establishment of Jilin Public Security College was approved, making it one of the first institutions of its kind nationwide. One of the 13 public security colleges, January 21, 2010. Ministry of Education Public Notice Jilin Public Security Higher Vocational College It was renamed Jilin Police College, and the name has remained in use to this day.

Jilin Police College To China–Singapore Innovation Independently developed Type DNTS-9 Time server Conduct an in-depth evaluation and arrive at the final results. All Exceeds the parameter requirements ， And also Regarding our company’s product quality and after-sales service Also quite satisfied. ， Procured successfully and put into use. ！

The network time server developed by Beijing Zhongxinchuang Technology Co., Ltd. The DNTS‑9 is an advanced, intelligent, high‑precision NTP network time server. It 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.

Use simultaneously The GNSS satellite receiver allows priority settings and supports single‑receiver/dual‑receiver and single‑antenna/dual‑antenna configurations; each receiver can be configured to operate in timing mode either independently or in conjunction with others. When 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 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	Support 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 for a LAN)
	User capacity: Supports tens of thousands of clients.
	NTP request rate: 25,000 requests per second (per network port)
	Can be used as a client to synchronize with others. NTP network time server
	Support 100,000 log entries; storage capacity can be expanded as needed.
Front panel	VFD high-brightness LCD display
	Display GPS/BD satellite reception status, time, number of GPS/BD satellites, IP addresses of each network port, system operating status, etc.
	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 to 8 channels optional, supports USB 2.0/3.0, with backup, restore, and upgrade functions.
	TOD: DB-91 bus, RS232/RS485 levels, 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.
	10 M 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)
	Size: 1U/2U chassis

After a long… 23 With 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, Xi’an Jiaotong 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, and our company will continue to… With the corporate mission of “Innovating Technology, Serving a Better Life” and the corporate vision of “Becoming a Creator of Exceptional Quality,” we collaborate sincerely with partners across all sectors to jointly achieve win-win outcomes and shared progress for both our enterprise and society.

Zhongxin Chuangwei has provided clock synchronization server equipment to the Dental Disease Prevention and Treatment Center in Shanghai’s Xuhui District.

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Zhongxin Chuangwei has provided clock synchronization server equipment to the Dental Disease Prevention and Treatment Center in Shanghai’s Xuhui District.

Zhongxin Chuangwei provides clock synchronization server equipment to Wuning County People’s Hospital.