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2020

Zhongxin Chuangwei provides time synchronization equipment to Chongqing Huafeng Chemical.

Zhongxin Chuangwei provides time synchronization equipment to Chongqing Huafeng Chemical.

Recently, Chongqing Huafeng Chemical issued a requirement for a clock synchronization system. Beijing Zhongxin Chuang promptly collaborated to develop a detailed solution and recommended its self‑developed and manufactured DNTS‑6 time server 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 Chongqing Huafeng Chemical’s clock synchronization equipment project.

Founded in May 1991, Huafeng Group is a large private joint-stock enterprise primarily focused on advanced chemical materials, with complementary operations in metals, trade, logistics, new energy, finance, and the digital economy. The company employs over 14,000 people and boasts total assets of RMB 34.375 billion. It operates production bases across six provinces and municipalities nationwide and has two listed subsidiaries as well as two specialized financial institutions.

Chongqing Huafeng Chemical conducted an in-depth evaluation of the DNTS‑6 clock 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, proceeding smoothly with procurement and deployment.

The network time server DNTS-6, developed by Beijing Zhongxinchuang Technology Co., Ltd., is a high-tech, intelligent, stand-alone time server based on the NTP/SNTP protocols. DNTS-6 obtains standard clock signal information from GPS geostationary satellites and transmits this information across the network, enabling devices that require time signals—such as computers and controllers—to synchronize with the standard clock. Standard clock information is transmitted via the TCP/IP network, and DNTS-6 supports multiple popular time‑broadcasting protocols, including NTP and time/UDP, as well as Zhongxinchuang’s proprietary time‑broadcast data packets 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, DNTS-6 supports the broadcast mode of the SNTP protocol.

Network Protocol:	NTP v1, v2, v3, and v4 (RFC 1119 and RFC 1305), SNTP (RFC 2030), MD5 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, SNMP v1 and v2, MIB II (RFC 1213), RSA asymmetric encryption
	IPV4
NTP Server Performance:	GPS/BD clock reference mode, primary network time server, internal synchronization accuracy of 1 µs.
	User terminal synchronization timing accuracy: 0.5–2 ms (typical value on a local area network)
	User capacity: Supports thousands of clients.
	NTP request rate: 2,000 requests per second (per network port)
	Supports 50 log entries (per single network port)
GPS/BD receiver:	50-channel timing‑grade GPS/BD receiver, with options for single‑GPS, single‑BD, or GPS/BD dual‑mode operation.
	UTC synchronization accuracy: 30 ns (RMS)
	Receives L1 C/A code signal at 1575.42 MHz
	Tracking and lock‑on sensitivity can reach −160 dBm.
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.
	Indicator lights: SAT, E1–E2
	Indicates whether the NTP service is running and whether the network connection is normal.
Rear panel:	GPS/BD antenna input: BNC, 1 channel, L1, 1575.42 MHz, output 3.3 V DC
	Network port: RJ-45, 1–2 ports (optional depending on model), 10/100 Mbps adaptive Ethernet interface.
	1 PPS output: BNC, 1 channel, TTL level, accuracy 20 ns (RMS)
	TOD Output: DB-9 female, 1 channel, RS232/RS485 interface
Physical and Environmental Parameters:	Dimensions: 1U chassis, 435×44×230 mm
	Weight: 3 kg
	Power Supply: AC 220 V ±20%, 47 Hz to 63 Hz
	Operating temperature: -40°C to +80°C (equipment), -40°C to +85°C (antenna)
	Storage temperature: -45°C to +85°C
	Humidity: 95% non-condensing ● Power consumption: 15W
Time synchronization software performance
Client-side time synchronization software:	Provides NTP‑based time‑synchronization software for Windows, running as a service and offering a monitoring, control, and configuration interface. The client supports operating systems including Windows 98, NT, 2000, XP, Vista, 7, Unix, Linux, AIX, and others.

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

Sinopec, Shanghai Petrochemical, Tianjin Petrochemical, Yanshan Petrochemical, Zhanjiang Petrochemical, Langfang Petrochemical, Gansu Petrochemical, Anqing Petrochemical, Zhongyuan Petrochemical, Daqing Oilfield, Daqing Refining & Chemical, Qinshan Nuclear Power Plant, Kunlun Gas, Hope Gas, PetroChina Yellow Sea Storage Base, Beijing Shougang Co., Ltd., Hebei Shougang Qian’an Iron & Steel Co., Ltd., Fujian Sangang Mingguang Co., Ltd., Angang Steel Co., Ltd., Chongqing Iron & Steel (Group) Co., Ltd., Tianjin Jinwanhang Petroleum Materials & Equipment Co., Ltd., Daqing Petrochemical, China National Petroleum Corporation Qingyang Petrochemical Company, Tarim Oilfield, Tianjin Petrochemical, Yangzi Petrochemical, Sino‑Saudi (Tianjin) Petrochemical, Zhongyuan Petrochemical, North China Petroleum Communications Co., Ltd., Wuhan Iron & Steel Group Co., Ltd., Shaanxi Yulin Energy Group, China Huaneng Group, China General Nuclear Power Group, Yankuang Group, the China–Russia East Pipeline, 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 across all sectors, we are jointly advancing toward win‑win outcomes for businesses and society alike.

Zhongxin Chuangwei provides an NTP time server for Zhejiang Rural Credit Union.

Zhongxin Chuang has provided an NTP time server to the Eighth Research Institute of China Electronics Technology Group Corporation.

Zhongxin Chuangwei provides an NTP time server for Zhejiang Rural Credit Union.

Zhongxin Chuang has provided an NTP time server to the Eighth Research Institute of China Electronics Technology Group Corporation.