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2024

Zhongxin Chuangwei provides clock synchronization equipment for the TDCS project of the Jing-Shen Railway.

Zhongxin Chuangwei provides clock synchronization equipment for the TDCS project of the Jing-Shen Railway.

Recently, the Jing-Shen Railway’s TDCS project required a time server. Beijing Zhongxin Chuang promptly collaborated to develop a detailed solution for the client and recommended its independently developed and manufactured DNTS-82-RGB 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 the clock‑synchronization server component of the Jing-Shen Railway’s TDCS project.

The Jingbian–Shenmu Railway, originally known during its construction phase as the “Jingbian–Shenmu Coal Transport Hub and Collection‑Distribution System Project of the Western Mongolia to Central China Railway Corridor,” is a railway within Yulin City, Shaanxi Province, China, connecting Jingbian and Shenmu. National Railway Grade I Electrified railways are an integral part of China’s “North Coal to South” strategic transport corridor.

The Jing-Shen Railway TDCS project conducted an in-depth evaluation of the DNTS-82-RGB time server, independently developed by Zhongxin Chuang. The results consistently exceeded the specified performance parameters, and the client expressed high satisfaction with both our product quality and after-sales service, leading to a successful procurement and deployment.

The DNTS-82-RGB 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-82-RGB time server obtains standard clock signal information from GPS or BeiDou 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 both GPS and BeiDou receivers are used, a priority can be defined; by default, BeiDou takes precedence, with GPS serving as a backup. If neither receiver has a signal, the DNTS-84-OGB relies on its built-in temperature-compensated crystal oscillator for timekeeping, achieving a timing accuracy of up to 1E-9. The DNTS-82-RGB disseminates standard clock information via TCP/IP networks, while the DNTS-84-0GB supports multiple popular time‑broadcasting protocols, including NTP and time/UDP, and also accommodates custom‑defined time‑broadcast packets using 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-82-RGB 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 the 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	It can handle 20,000 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 rubidium atomic clock achieving an accuracy better than 1 × 10⁻¹².
Encryption Verification	Provides MD5 encryption verification functionality.
Network management functions	It features comprehensive SNMP network management capabilities.
Feature Extension	Supports expanding 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.

With 18 years of extensive industry experience, our company has established a strong corporate reputation and brand image, serving clients in the transportation sector, including:

The Ministry of Railways of the People’s Republic of China, China Railway Signal & Communication Group, Civil Aviation Administration of China, Shandong Provincial Department of Transportation, Beijing Railway Bureau, Shanghai Railway Bureau, Guangzhou Railway Bureau, Zhengzhou Railway Bureau, Kunming Railway Bureau, Xinjiang Railway Bureau, Jinan Railway Bureau, Beijing Capital International Airport, Shandong Air Traffic Management Bureau, Dalian Air Traffic Management Bureau, Kunming Air Traffic Management Bureau, Xinjiang Air Traffic Management Bureau, Wenzhou Air Traffic Management Bureau, Chongqing Air Traffic Management Bureau, Chengdu Air Traffic Management Bureau, Zhoushan Port and Shipping Administration, Information Center of Sichuan Provincial Department of Transportation, Beijing All‑Railway Communications and Signaling Research & Design Institute Co., Ltd., China Shipbuilding Industry Corporation, Hebei Expressway, Langfang Expressway Toll Station, Wuhan Expressway ETC, Yinzhou Highway Administration Section, Meishan Section of Yingguanghong Expressway, Xinjiang Project to Eliminate Provincial Border Toll Stations on Expressways, National Expressway De–Shang Line, Anlin Expressway Project to Remove Provincial Border Toll Stations, Shuohuang Railway Development Co., Ltd., 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 Jiuquan Iron & Steel (Group) Co., Ltd.

Zhongxin Chuangwei provides clock synchronization equipment for Jingdezhen Luojia Airport.

Zhongxin Chuangwei provides clock synchronization server equipment to Jiuquan Iron & Steel (Group) Co., Ltd.

Zhongxin Chuangwei provides clock synchronization equipment for Jingdezhen Luojia Airport.