Time-Frequency Encyclopedia

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2023

Zhongxin Chuangwei provides clock synchronization equipment to Visionox Technology.

Zhongxin Chuangwei provides clock synchronization equipment to Visionox Technology.

Recently, Visionox Technology issued a request for a time server. Beijing Zhongxin Chuang promptly collaborated to develop a detailed proposal and recommended its self‑developed and manufactured DNTS‑8 time server as the bid‑winning product. Following a highly competitive bidding process, Zhongxin Chuang stood out thanks to its high‑quality products and comprehensive after‑sales service, ultimately securing the contract for Visionox Technology’s time‑synchronization server project.

Visionox is a globally leading, innovative provider of comprehensive next‑generation display solutions. Founded in 2001, the company traces its origins to the Tsinghua University OLED (Organic Light Emitting Display) project team established in 1996. Guided by the vision of “expanding horizons and enhancing human visual experience” and the mission of “driving China’s OLED industry through technological innovation,” Visionox has been dedicated to the OLED field for more than two decades and has grown into a global leader in the OLED industry, integrating R&D, manufacturing, and sales.

Visionox Technology conducted an in-depth evaluation of the DNTS‑8 time server, independently developed by Zhongxin Chuang. The results exceeded all specified performance parameters, and the company expressed strong satisfaction with both our product quality and after-sales service, leading to a successful procurement and deployment.

The DNTS-8 time server, developed by Beijing Zhongxinchuang Technology Co., Ltd., is a high-tech, intelligent, stand-alone clock synchronization server that operates based on the NTP/SNTP protocols and delivers high precision. The DNTS-8 time server obtains standard clock signal information from GPS geostationary satellites and transmits this information across the network, enabling devices requiring time signals—such as computers and controllers—to synchronize with the standard clock. When all receivers lose signal, the DNTS-8 relies on its built-in temperature-compensated crystal oscillator for timekeeping, achieving a timing accuracy of up to 1E-9. The DNTS-8 uses standard clock information transmitted over TCP/IP networks and supports multiple popular time‑broadcasting protocols, including NTP and time/UDP; it can also accommodate custom‑defined time‑broadcast packets from Zhongxinchuang Technology, with configurable UDP ports. The port numbers for NTP and time/UDP are fixed at 123 and 37, respectively, as specified in RFC-123 and RFC-37. Additionally, the DNTS-8 supports the broadcast mode of the SNTP protocol.

Product dimensions	19-inch 1U
Receiver	Built-in GPS receiver
Built-in clock	Built-in temperature-compensated crystal oscillator; even when satellite signals are lost, it continues to output a standard time signal.
Liquid crystal display	LCD displays time in two lines of 20 characters each, showing the current time, the number of satellites, and the device’s operating status. LEDs indicate power status, satellite lock status, holdover operation, alarms, and NTP validity.
Throughput	Can handle 2,000 time requests per second per port.
Local Alarm	Supports SNMP alarms, local dry-contact alarm output, current rating 10A.
Output interface	RS232/485, IRIG-B, 10M, 1PPS, 10 MHz sine wave output, BNC connector 1 PPS output, BNC connector IRIG-B code output, BNC interface IRIG-B code input, BNC interface RS232 output, supports the TL1 protocol.
Input interface	Serial port input; time can be set manually, and it can serve as an external clock source.
Timekeeping function	Even when satellite signals are lost, it must still output a standard time signal, with the temperature-compensated crystal oscillator achieving an accuracy of better than 1 × 10⁻¹².
Encryption Verification	Provides MD5 encryption verification functionality.
Network management functions	It features comprehensive SNMP network management capabilities.
Feature Expansion	Supports extending to select other functional modules.
Settings Management	Supports configuration and management via web pages, Telnet, and other methods.
Timekeeping Record	Time‑synchronization logs can be viewed via the web interface and Telnet; the installed software can store an unlimited number of records.
UDP operating mode	Provides the UDP broadcast protocol, enabling connection to electronic clock LED displays. You can configure at least eight UDP remote IP addresses and port numbers: Output the newly created science and technology time data packet: A total of 32 bytes, with the following details: Offset Description 00...01 year (00...99) 02...03 months (01...12) 04...05 day (01...31) 06...07 hours (00...23) 08...09 points (00...59) 10...11 seconds (always 00) 12 weeks (1-Mon, 2-Tue, ...) 13 Daylight Saving Time Flag (0-no, 1-yes) 14 String terminator, ‘\0’ 15 String terminator, ‘\0’ 16...19 32-bit CET/CST time in UNIX format 20...23 32-bit GMT time in UNIX format 24...31 All 0

With 20 years of industry experience, our company has established a strong corporate reputation and brand image, serving clients across various sectors, including:

Shenzhen Huawei, ZTE Corporation, Ericsson, Datang Telecom, Digital China (China) Co., Ltd., Tsinghua Unigroup Co., Ltd., 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., Chongqing Cigarette Factory, BOE, Lenzing (Nanjing) Fibers Co., Ltd., Taiwan’s Formosa Plastics, Weihai Triangle Tire, Henan Huayuan Photovoltaic Technology, Jiaxing Duoneng Automation Equipment Co., Ltd., Tangshan Sanyou Chlor-Alkali Company, Inner Mongolia Desheng Blast Furnace Overhaul Project, 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 are jointly advancing toward win‑win outcomes for businesses and society alike!

Zhongxin Chuangwei provides clock synchronization server equipment to Liaoning Radio and Television Station.

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Zhongxin Chuangwei provides clock synchronization server equipment to Liaoning Radio and Television Station.

Zhongxin Chuangwei provides clock synchronization server equipment to Henan Radio and Television Station.