Time-Frequency Encyclopedia

Focus on time and frequency, precise and stable.

03

2024

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09

Zhongxin Chuangwei provides a precision clock to Jiuquan Iron & Steel Group Co., Ltd.

Zhongxin Chuangwei provides a precision clock to Jiuquan Iron & Steel Group Co., Ltd.

Recently, Jiuquan Iron & Steel Group Co., Ltd. issued a tender for time servers. 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 Jiuquan Iron & Steel Group Co., Ltd.

Jiuquan Iron & Steel (Group) Co., Ltd. (referred to as JiuSteel) is located in Jiayuguan City, Gansu Province. Established in 1958, it was the fourth steel complex among the earliest projects planned and constructed by the state, and remains the earliest‑built, largest‑scale diversified modern enterprise group in Northwest China, integrating both ferrous and nonferrous industries.

 

After more than 60 years of development, Jiuquan Iron & Steel has established a coordinated industrial structure encompassing six major sectors: steel, nonferrous metals, power and energy, equipment manufacturing, producer services, and modern agriculture. The steel industry boasts an annual crude steel production capacity of 11.05 million tons (8.25 million tons at the main plant and 2.80 million tons at Yuguang Steel); the nonferrous metals sector has an annual electrolytic aluminum production capacity of 1.70 million tons and an aluminum sheet‑and‑strip casting‑rolling capacity of 600,000 tons; and the power and energy sector operates self‑owned generating units with a total installed capacity of 3,553 MW. With robust overall strength, Jiuquan Iron & Steel’s asset base and annual revenue both exceed RMB 100 billion. The group currently employs 37,000 people and has been consistently ranked among China’s Top 500 Enterprises and China’s Top 500 Manufacturers for many consecutive years.

Jiuquan Iron & Steel Group Co., Ltd. conducted an in-depth evaluation of the DNTS-92-OG time server independently developed by Zhongxin Chuang, and the results exceeded all specified performance parameters. The company also expressed high satisfaction with our product quality and 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 high‑precision 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, CDMA optional.

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 (upgradeable 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 optional.

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 alarm: 1–6 pairs optional, including satellite, power supply, antenna, port capacity, and other alarms.

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‑redundant power supply 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 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., Wuhan Iron and Steel Group, 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 close collaboration with partners from all sectors to jointly achieve win‑win outcomes and shared progress for both the enterprise and society.