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2023

Zhongxin Chuangwei provides a precision clock to Fujian Sangang Group.

Zhongxin Chuangwei provides a precision clock to Fujian Sangang Group.

Recently, Fujian Sangang Group issued a request for a time server. Beijing Zhongxin Chuang promptly collaborated to develop a detailed proposal and recommended its independently developed and manufactured DNTS-92-OG 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 time‑synchronization project from Fujian Sangang Group.

Fujian Sangang (Group) Co., Ltd. (hereinafter referred to as Sangang Group) was formerly known as Fujian Sanming Iron and Steel Plant, established in 1958. In March 2000, with the approval of the People’s Government of Fujian Province, it underwent restructuring and was reorganized into Fujian Sangang (Group) Co., Ltd. The controlling shareholder is Fujian Metallurgical (Holding) Co., Ltd., which holds 94.4906% of Sangang Group’s total share capital. Today, Sangang Group has grown into a large-scale enterprise group spanning multiple industries, regions, and forms of ownership, with an annual steel production capacity of 11 million tons and a diversified business portfolio centered on the steel industry. It operates four major steel production bases: the Sanming headquarters, Quanzhou Mingguang, Luoyuan Mingguang, and Zhangzhou Mingguang. As of December 2018, Sangang Group employed…

With a workforce of 16,000 employees and total assets of RMB 40.712 billion, the group has 15 wholly owned and controlling subsidiaries—among which Fujian Sangang Mingguang Co., Ltd. is a publicly listed company—and two closely affiliated enterprises.

Fujian Sangang Group conducted an in-depth evaluation of the DNTS-92-OG time server, independently developed by Zhongxin Chuang. The results consistently exceeded the specified performance parameters, and the company expressed high satisfaction with both the product’s quality and our after-sales service, proceeding to place a successful order and put the system into operation.

In addition to serving as a primary‑level network time‑synchronization device, the DNTS‑92S‑OG 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 device has been successfully deployed across government, finance, mobile telecommunications, public security, petroleum, power, transportation, industrial, and defense sectors.

The DNTS-92S-OG network time server is extremely easy to install and use: simply connect the satellite receiving antenna and plug the network port into a network switch, and you can achieve time synchronization across 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: ≥35,000 requests per second (per network port) (a test report from a national testing authority is available).
	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: ≤50 ns/24 hours (test report available from a national testing authority); Standard configuration: better than 8.6 µs/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.
Rear panel	GNSS antenna input: BNC, with 1–2 channels selectable.
	NTP network ports: 4 × 10/100/1000 Mbps or 10 Gigabit Ethernet ports, optional.
	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 alarms: 1–6 pairs optional, including satellite, power supply, antenna, port capacity, and other alarm types.
	10 MHz output: Frequency accuracy: ≤1×10⁻¹³ (national testing authority test report available); BNC, 1 channel, selectable sine wave or square wave, impedance: 50 ohms; frequency accuracy: <1×10⁻¹².
	1 PPS output: BNC, TTL level, accuracy ≤ 10 ns (RMS)
	Dimensions: 1U chassis
Physical Environment Parameters	Power Supply: AC 220 V ±20%, 47 Hz to 63 Hz; hot-swappable redundant power supplies available as an option.
	Operating temperature: -10°C to +55°C (equipment), -40°C to +75°C (antenna)
	Storage temperature: -45°C to +85°C
	Humidity: 95% non-condensing

With 21 years of extensive industry experience, our company has established a strong corporate reputation and brand image, serving clients in the steel industry, including:

Beijing Shougang Co., Ltd., Hebei Shougang Qian’an Iron & Steel Co., Ltd., Fujian Sangang Minguang Co., Ltd., Ansteel Co., Ltd., Chongqing Iron & Steel (Group) Co., Ltd., Tianjin Jinwanhang Petroleum Materials & Equipment 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 sincere collaboration with partners from all sectors to jointly achieve win‑win outcomes and shared progress for both our enterprise and society.

Zhongxin Chuangwei provides a clock synchronization server to Honghe University.

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Zhongxin Chuangwei provides a clock synchronization server to Honghe University.

Zhongxin Chuang provides time synchronization equipment to the Communication University of China.