Time-Frequency Encyclopedia

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2019

Zhongxin Chuangwei provides a time and frequency reference for Weihai Triangle Tire.

Zhongxin Chuangwei provides a time and frequency reference for Weihai Triangle Tire.

Recently, Weihai Triangle Tire issued a requirement for a clock synchronization server. Beijing Zhongxin Chuang promptly collaborated to develop a detailed proposal and recommended 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 Weihai Triangle Tire’s time‑server project.

Triangle Tire Co., Ltd. was established in 2001, succeeding the Weihai Tire Factory, which was founded in 1976. Today, it is a leading enterprise in China’s tire industry, with a product portfolio that includes commercial vehicle tires, passenger car tires, bias‑ply off‑road tires, radial off‑road tires, and giant tires. As of now, its annual production capacity stands at 22 million sets.

Weihai Sanjiao Tire conducted an in-depth evaluation of the DNTS‑9 series time 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, leading to a successful procurement and deployment.

The DNTS-9 network time server, developed by Beijing Zhongxinchuang Technology Co., Ltd., is an 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 devices.

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 better than 8.6 µs/day (configurable upgrades available to meet specific 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 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.

With 17 years of industry experience, our company has established a strong corporate reputation and brand image, serving clients from other enterprises, including:

Shenzhen 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., 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 close 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 Daqing Petrochemical.

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Zhongxin Chuangwei provides a precision clock for Daqing Petrochemical.

Zhongxin Chuangwei provides a precision clock system to Huizhou Lichangrong Rubber Co., Ltd.