Cesium Clocks

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OSA 3230 Series

Magnetic Cesium Clocks

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	OSA 3230B PRC and OSA 3230B ePRC Our OSA 3230B primary reference clock and OSA 3230B enhanced primary reference clock are ITU-T G.811- and G.811.1-compliant, making them ideal for applications in 5G, data centers and financial networks. By integrating precise cesium-based frequency signals with advanced time distribution and management capabilities, they offer performance superior to standard PRTC systems. Additionally, the OSA 3230B PRC and 3230B ePRC are simple to operate with remote management options, enabling easy integration into industrial and professional time and frequency host systems. With their compact design, they are also perfect for environments with limited space, ensuring high precision without sacrificing valuable rack space.
	OSA 3235B Our OSA 3235B cesium clock is a flexible metrological reference clock source that uses digital cesium technology. Built for applications such as metrology, scientific research, healthcare, nanometrology and navigation, the compact device can be deployed in environments with tight space constraints. Offering accuracy better than ±1x10-12 and with an optional internal battery that provides up to 45 minutes of operation, the OSA 3235B significantly boosts the security, redundancy and reliability of GNSS-dependent timing networks. Available with a long-life cesium tube, our OSA 3235B can deliver superior timing and synchronization performance for up to 10 years.
	OSA 3030B EUDICS Our OSA 3030B EUDICS is a cesium-based autonomous primary reference clock, offering exceptional frequency accuracy and stability. Ideal for navigational networks, it’s optimized for operational simplicity and reliability. The OSA 3030B EUDICS features an extended DC supply range, ensuring seamless integration with any application requiring a highly precise timing reference. Designed to withstand a variety of environmental conditions and compact enough for deployment in the smallest of spaces, the OSA 3030B EUDICS is the ultimate choice for operators needing a highly accurate and flexible source of timing.

Dependable and resilient timing and synchronization backup

Modern communication networks, power utilities, financial institutions and more depend on precise timing information. The Global Navigation Satellite System (GNSS) is commonly used as a primary source of this data. However, signals are weak and increasingly vulnerable to cyberattacks, so systems need to be augmented with ground-based solutions capable of supplying the same level of accuracy. Magnetic cesium clocks are an optimal choice to provide holdover when GNSS is unavailable because they provide a stable source of precise timing information.

How magnetic cesium clocks work

Magnetic cesium clocks heat cesium atoms to form a beam that travels through the clock’s apparatus, causing the atoms’ electrons to transition from one ground state to another. A magnetic field is then used to separate out atoms with the desired state. These are then exposed to microwave radiation to induce transitions at the precise resonance frequency needed to measure time accurately. It’s a process that results in an extremely precise and stable source of timing that can be used to power the most demanding of applications over extended periods.

Protecting critical PNT infrastructure

Adtran’s compact and low-power magnetic cesium devices can be combined with our core grandmasters to create an enhanced primary reference time clock (ePRTC) that provides highly accurate timing and stable synchronization to significantly boost the reliability of GNSS-dependent networks. Whether deployed in defense, 5G or data center networks, Adtran’s industry-leading magnetic cesium clocks leverage a combination of unrivaled precision and industry-leading redundancy to guarantee the uninterrupted flow of timing and synchronization information.

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