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2021

Zhongxin Chuang has provided clock synchronization equipment to the 11th Research Institute of China Electronics Technology Group Corporation.

Recently, the 11th Research Institute of China Electronics Technology Group Corporation issued a request for proposals for a time server. Beijing Zhongxin Chuang Co., Ltd. proactively collaborated to develop a detailed solution and recommended its independently developed and manufactured DNTS‑7 time 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 from the 11th Research Institute of China Electronics Technology Group Corporation. Time and Step server project.

　 The 11th Research Institute of China Electronics Technology Group Corporation is one of the earliest comprehensive Class I defense‑related research institutes in China, dedicated to military applications and integrating laser and infrared technologies with materials, devices, and complete‑system integration. Established in 1956, it was the first institute in New China devoted to electronic components and materials.

The 11th Research Institute of China Electronics Technology Group Corporation Developed independently by Zhongxin Chuang DNTS-7 The time server underwent rigorous testing, and the results consistently exceeded the specified performance parameters. We are highly satisfied with both the product’s quality and our after-sales service, and have proceeded smoothly with procurement and deployment.

The DNTS-71-GB network time server, developed by Beijing Zhongxinchuang Technology Co., Ltd., is an intelligent, high-precision NTP network time server. The DNTS-71-GB 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 synchronize with international standard time.

When using GNSS satellite receivers simultaneously, priority can be configured; the system supports single‑receiver/dual‑receiver and single‑antenna/dual‑antenna configurations, with each receiver capable of being set to time‑synchronization mode either independently or in conjunction with others.

DNTS-71-GB It features one adaptive 10/100/1000 Mbps Ethernet port, with physical isolation between ports to ensure complete data security. The ports can be configured either on the same network segment or on different segments, and the system provides redundancy—failure of one port will not affect the normal operation of the others. Each Ethernet port must be assigned an independent IP address.

Performance Metrics

Network protocol	NTP v1.v2.v3&v4(RFC1119&1305) SNTP(RFC2030) Authentication (RFC1321) Telnet (RFC854) UDP NTP Unicast, Broadcast, Multicast, Autokey TIME (RFC868) FTP (RFC959) DAYTIME (RFC867) DHCP (RFC2131)
	HTTP/SSL/HTTPS (RFC2616) SSH/SCP (Internet Draft) SNMP v1, v2c, and v3, MIB II (RFC1213), RSA asymmetric encryption, MD5 authentication, SHA authentication, AES encryption, DES encryption, RC4 encryption
	IPV4 , IPv6, IPv4/IPv6 Hybrid
	Supports NTP Peer Client/Server, Broadcast, and Multicast
Server performance	GNSS Reference mode, primary network time server, internal synchronization accuracy of 20 ns.
	NTP Request rate: 20,000 requests per second per network port
	User terminal synchronization timing accuracy: 0.1–2 ms (typical value on a local area network)
	User capacity: Supports tens of thousands of clients.
	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.
Receiver	72 Channel‑based timing GNSS receiver; multiple time sources—GPS, BDS, GLONASS, Galileo, 4G, and CDMA—are selectable. Users can manually select single-GPS, single-Beidou, or dual-satellite mode (GPS + Beidou) via command.
	UTC Synchronization accuracy: 20 ns (RMS)
	Tracking and lock‑on sensitivity can reach −166 dBm.

With 20 years of extensive industry experience, our company has established a strong corporate reputation and brand image, serving clients in the research institute sector, including:

China Electric Power Research Institute, Institute of Physics of the Chinese Academy of Engineering, China Academy of Launch Vehicle Technology, China Institute of Atomic Energy, Nanjing Institute of Astronomical Optical Technology of the National Astronomical Observatories, Instrument Research Institute of the Nanjing Astronomical Observatory of the Chinese Academy of Sciences, Xichang Satellite Launch Center, the 54th Research Institute of China Electronics Technology Group Corporation, the 10th Research Institute of China Electronics Technology Group Corporation, the 15th Research Institute of China Electronics Technology Group Corporation, the 36th Research Institute of CETC, the Xi’an Flight Automatic Control Research Institute of AVIC, Taiyuan Satellite Launch Center, Beijing‑1 Satellite Ground Station, Shanghai Satellite Engineering Research Institute, China Putian, Shanghai Lizheng Satellite Application Technology Co., Ltd., Shanghai Small Satellite Engineering Center, China Merchants Chongqing Transportation Science Research Institute, Railway Research Institute, and others.

The choice of numerous departments and enterprises reflects recognition of Zhongxin Chuang’s products and services. By working in close collaboration with partners from all sectors, we will jointly achieve win‑win outcomes and shared progress for both businesses and society.

Zhongxin Chuangwei provides clock synchronization equipment to Shanxi Securities.

Zhongxin Chuangwei provides precise clock synchronization for Chengdu Banknote Printing Co., Ltd.

Zhongxin Chuangwei provides clock synchronization equipment to Shanxi Securities.

Zhongxin Chuangwei provides precise clock synchronization for Chengdu Banknote Printing Co., Ltd.