Crystal Oscillators
Atomic Clocks
SLIC Chips
Clock Chips
Time Server
Timing Module
An oven-controlled crystal oscillator (OCXO) uses a constant-temperature oven to maintain the temperature of a quartz crystal resonator, minimizing fluctuations in the oscillator's output frequency caused by ambient temperature fluctuations.
Lightweight and compact
Low power consumption
Small size
Wide operating temperature
SA.45 compatible
The AS1630A chip is a single-channel SLIC device with a 3-wire SSI input/output digital interface. It provides all the SLIC, codec, and DTMF detection functions required for a complete analog telephone interface.
The AC1571 is a PLL-based clock generator for 5G base station applications. This chip utilizes fully digital phase-locked loop (PLL) technology to achieve optimal high-frequency, low-phase-noise performance, along with low power consumption and high PSRR.
The TS3000 (4U) is a high-precision time synchronizer that supports dual-mode GPS/Beidou with dual antennas and supports master/slave configurations.
The MOC330 PCI-e timing card supports multiple reference inputs and outputs, allowing for customized combinations to provide high-precision time information for computer systems.





The pain points are concentrated in four major dimensions: accuracy, stability, security, and management. Traditional clock sources lack accuracy and are susceptible to interference
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Strong electromagnetic environments can easily cause satellite timing signals to be interfered with or deceived. Different devices have very different requirements for synchronization accuracy and multi-protocol compatibility is complex.
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Satellite timing is easily obstructed by tunnels, terrain and other environmental interference. The compatibility of multiple devices and multiple protocols is complex, and network delay jitter affects synchronization accuracy.
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Scenarios such as high-frequency trading require extremely high microsecond accuracy. The clocks of distributed system nodes are prone to deviation and network delays affect synchronization consistency.
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Devices are highly heterogeneous and multi-protocol compatibility is complex. Delay jitter and clock drift in a mixed wireless/wired network environment can easily lead to synchronization deviations.
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There are strict requirements for high precision at the nanosecond to microsecond level, while network delay jitter, clock drift and hardware resolution limitations exacerbate synchronization deviations.
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Saisi x Midea | High-Precision NTP Servers Empower Digital Transformation
Amid the deepening 'East Data West Computing' strategy and surging AI computing demands, Midea Group's Gui' an and Nanhai cloud data centers have deployed Saisi's high-precision NTP servers. This enables precise time synchronizati
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Recently, Saisi Electronics, a leading clock synchronization company, has secured the top position in the telecom operator market. It won the 2025 centralized procurement project for time synchronization equipment from China Unicom with the highest overal
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Saisi Global Distributed Data Center PTP Solution: Empowering Alibaba Cloud to Accelerate the Construction of a "Unified Global Cloud Computing Network"
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As a domestic leader in the #time synchronization# field, ranging from amusement parks to the lifeline of the nation, Saisi has created over 1,000 industry benchmark cases for critical sectors such as 5G/6G communications, power energy, rail transit, and
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Recently, the first two trains for Bogotá's first metro line, Line 1, officially rolled off the assembly line and were delivered. As the sole supplier of clock synchronization products and solutions for the line
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oil and gas circle expansion Saisi completes its business layout in the "Big Three Oil Companies" The oil and gas industry, as the "energy backbone" of the social infrastructure sector, is crucial to the overall economic development.
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Saisi x Hangzhou Metro Line 6 | Saisi Time Server Steadily Expands on the "Railway"
Recently, Hangzhou Metro Group Co., Ltd. partnered with Saisi for the Phase I project of Hangzhou Metro Line 6, requesting the company to supply a DCS clock server for the engineering signaling system. The Hangzhou Metro Line 6 project marks another coll
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As Saisi's product competitiveness and reputation have grown, it has gradually established a strong brand and customer base within the industry. In particular, in areas of strength, Saisi's timing and frequency products are increasingly exported
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Saisi's synchronous clock provides all-round support to the Volta Engine Yangtze River Delta Computing Power Center, helping ByteDance's Volta Engine to create a "new universe in the cloud".
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Based on years of technological advantages, Zhejiang Saisi has secured a position in the field of high-precision time-frequency. Since its launch, Saisi's Gigabit Ethernet tester has received extensive inquiries and attention from users. Recently, Hu
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70%
Electric Energy
50%
Transportation Track
1000+
Cooperation Case
100+
R&D Personnel
About Us
Committed To Providing Customized Time And Frequency Benchmarks For All Industries In Society
Since 2013, the company has established over 10 time-frequency product lines, developed more than 100 time-frequency complete machines/systems, and created benchmark customers such as China Mobile in the civilian market, becoming a core supplier in various key fields. In 2015, a number of high-precision time-frequency board cards/modules were finalized
Learn More +For over a decade, we have been continuously building a "time and frequency service network", providing global customers with a full range of time and frequency product services. Currently, Saisi leads the industry in terms of comprehensive market share. It has a large pre-sale and after-sale team as well as a globally leading R&D team, ensuring reliable services and business coverage across four continents around the world.
Contact Us +The exponential growth of AI computing power is driving comprehensive technological upgrades in computing infrastructure. Next-generation AI servers and 800G/1.6T optical modules now demand higher precision in timing synchronization. Saisi has launched its groundbreaking ultra-low-jitter differential crystal oscillator series, delivering high-perfo
Learn More +As the golden snake bids farewell to the year and the steed heralds spring, Saisi Marketing Center held its 2025 Annual Summary Conference with great pomp at its Jiaxing headquarters on January 24. Senior executives and all marketing team members gathered to review the remarkable achievements of the past year and chart the course for 2026. 01 Revie
Learn More +The annual IEEE1588 International Symposium on Clock Synchronization Measurement, Control and Communication (ISPCS) was held at the National Physical Laboratory in London, UK, from September 18 to 22,2023. Saisi attended as scheduled, collaborating with global partners to explore clock synchronization technologies and distributed applications based
Learn More +From July 13 to 15,2023, Saisi showcased its high-precision clock chips, OCXO, clock systems and other products at the "11th China (Western) Electronics Information Expo" in Chengdu Century City New International Convention and Exhibition Center.
Learn More +The Application of Atomic Clocks in Airports
In the field of modern air transportation, the accuracy of time is not only a technical issue but also a key link related to safety. Among numerous high-precision timekeeping devices, atomic clocks, with their outstanding stability and precision, have become an indispensable technical support for airports worldwide.
Learn More +The Importance of Time Synchronization Servers in the Financial Sector
With the continuous advancement of technology, the financial industry is undergoing a continuous digital transformation. In this process, the application of time synchronization technology has become particularly important. As an efficient and reliable time synchronization device
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