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2019

Congratulations to Tianma Telescope on the successful procurement of the new NTP network synchronization equipment project.

Congratulations to Tianma Telescope on the successful procurement of the new NTP network synchronization equipment project.

Recently, the Tianma Radio Telescope issued a request for a network time server. Beijing Zhongxin Chuang Co., Ltd. promptly collaborated to develop a detailed proposal and recommended its independently developed and manufactured DNTS‑8 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 Tianma Radio Telescope’s time‑server project.

The Tianma Radio Telescope has successfully conducted radio astronomical observations of spectral lines, pulsars, and VLBI. It has detected emissions from numerous important molecules, including the long carbon-chain molecule HC7N, as well as several new hydroxyl maser sources, and has identified a number of pulsars, including the shortest-period millisecond pulsar in the northern sky, thereby opening its facilities to the international scientific community.

The Tianma Telescope conducted an in-depth evaluation of the DNTS‑8 series time server, independently developed by Zhongxin Chuang, and the results consistently exceeded the specified performance parameters. The team was highly satisfied with both our product quality and after-sales service, leading to a smooth procurement and successful 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 time signals. The DNTS-8 time server obtains standard clock signal information from GPS satellites and transmits this information across the network, enabling devices requiring time synchronization—such as computers and controllers—to align with the standard clock. When all receivers lose signal, the DNTS-8 relies on its built-in temperature-compensated crystal oscillator for holdover, achieving a holdover accuracy of up to 1E-9. The DNTS-8 disseminates standard clock information via TCP/IP networks and supports multiple popular time‑broadcasting protocols, including NTP and time/UDP; it also accommodates custom‑defined time‑broadcast 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, the DNTS-8 supports the broadcast mode of the SNTP protocol. The DNTS-8 features four adaptive 10/100M Ethernet ports, which are physically isolated from one another to ensure data security. These ports can be configured to operate within the same subnet or across different subnets, providing redundancy: a failure in one port will not affect the normal operation of the others. Each Ethernet port must be assigned an independent IP address.

	User terminal synchronization timing accuracy: 0.5–2 ms (typical value on a local area network)
	User capacity: Supports tens of thousands of clients.
	NTP request rate: 2,000 requests per second (per network port)
	It can serve as a subordinate server to synchronize with other NTP network time servers.
	Supports 50 log entries.
GPS/BD receiver:	50-channel timing‑grade GPS/BD receiver, available as a single‑GPS, single‑BD, or GPS/BD dual‑mode unit, with CDMA option.
	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.
Equipment Timing Function:	Temperature‑compensated crystal oscillator (optional, depending on model): Timing accuracy: better than 1E‑10.
Equipment Timing Function:	Rubidium atomic clock (optional depending on model): Timing accuracy: better than 1E-12
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, and system operating status.
	5 indicator lights: PWR, LOCK, HOLD, ALARM, TIME
	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, 1–12 ports (optional depending on model), 10/100 Mbps adaptive Ethernet interface
	TOD: DB-9 female, 1 channel, RS232/RS485 level, providing information such as time, position, and number of satellites.
	ALARM dry-contact alarm: 1 pair, including satellite lock‑out and other alarms.
	10M output: BNC, 1 channel, sine wave, impedance: 50 ohms; frequency accuracy: <1E-12
	B-code (DC) output: BNC, 1 channel, TTL level, compliant with IRIG Standard 200-89 (Format B CODE) and GJB2242-94 standards.
	B-code (DC) input: BNC, 1 channel, TTL level, compliant with IRIG Standard 200-89 (Format B CODE) and GJB2242-94 standards.
	1 PPS output: BNC, 1 channel, TTL level, accuracy 20 ns (RMS)

With 17 years of industry experience, our company has established a strong corporate reputation and brand image, serving well-known enterprises and clients such as:

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., 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 across all sectors to jointly achieve win‑win outcomes and shared progress for both our enterprise and society.

The China–Singapore Innovative Time Synchronization System Supports Energy and Chemical Group Co., Ltd.

Congratulations to the Wuzhou Municipal Public Security Bureau on its procurement of the Zhongxin Chuang NTP clock synchronization equipment project.

The China–Singapore Innovative Time Synchronization System Supports Energy and Chemical Group Co., Ltd.

Congratulations to the Wuzhou Municipal Public Security Bureau on its procurement of the Zhongxin Chuang NTP clock synchronization equipment project.