While the use of GNSS based time has become more vital for critical infrastructure operations, the security of the GNSS signal itself has become increasingly vulnerable to a wide range of jamming and spoofing threats, both intentional and unintentional. Given the inherently fragile nature of the GNSS signal, an important way Read more »
Invariably, things change. Profound I know, but even in the world of the venerable IRIG timecode there is a new search engine contender, iRig. Granted, a new guitar interface adapter for your smart phone app is a far cry from a waveform used to synchronize instrumentation, but even in IRIG there are revolutionary changes happening. Read more »
I think we would agree the publishing of Common Vulnerabilities and Exposures (CVEs) is a very useful mechanism to collectively evolve and harden our networks and products. It starts the timer, if you will, on a race between the black hats and organizations to respectively exploit or neutralize the CVE. Read more »
Initial phase and frequency errors an have a big impact on holdover performance. The CSAC’s unique 1PPS input can be utilized to eliminate these errors by employing proper disciplining. Read more »
The CSAC design is unique in that the physics is vacuum-packaged to eliminate convection/conduction effects. This enables CSAC to resist harsh thermal environments. Read more »
Here we explain how time error can be calculated from published aging rates. Given the CSACs small size and power consumption, the calculated holdover performance is impressive. Read more »
The chip-scale atomic clock (CSAC) is the world’s lowest-power, lowest-profile atomic clock. Thousands of units are deployed every year. But how does it perform in a rapidly changing thermal environment? Read more »
Things change in unexpected ways, even in network time servers, which in their most basic form are “just clocks.” Back in the day, new software releases came out chock full of new features and, to a lesser extent, bug fixes. We promoted those new features and benefits Read more »
5 Elements, 1 Objective
The value of networks is that everything, virtually speaking, can happen in the same place. There is only one incontrovertible physical reference Read more »
Element 5: A Secure, Verifiable Audit Trail
Lastly, but certainly not least, a time synchronization infrastructure requires an audit capability. The whole point of a timekeeping infrastructure is to provide assurance Read more »
The Five Elements – Part 4: Robust Network Time Management
Managing a network of devices as a whole is different from managing specific devices. The availability and reliability of accurate time across the entire network—not just a part of it—must be guaranteed. Read more »
The Five Elements – Part 3: Robust Server Management
How should an organization control a network time server? The answer probably is: Any way it prefers to. Some companies, for example, might prefer Read more »
The Five Elements – Part 2: A Timekeeping Architecture that Fits
Acquiring UTC from GPS requires taking the signal off the air and delivering it to the clients (PCs, workstations, servers, controllers, etc.) that rely on accurate time Read more »
The Five Elements – Part 1: An Accurate Time Source
In fact, the same is true for most organizations—accurate time needs to be pervasive on the network. Read more »
To understand the ingredients of network time synchronization, it is first necessary to understand why synchronization is important. Read more »
Organizations today need network time synchronization that ensures the integrity of network operations and applications, that needs little in the way of management overhead. Read more »
Global Positioning System (#GPS) vulnerabilities are real, just ask Microsemi’s Duke Buckner (senior director strategy and business development) who was out of the country one day in 2016 when time stuttered. Microsemi timing receivers continued to work Read more »
In this third and final article in the series on chip scale atomic clocks, I’d like to share products that have leveraged CSAC’s key attributes and a conclusion. Read more »
In the first of this series of articles on chip scale atomic clocks, I shared about an atomic clock, what it is and how they are more accurate than Quartz clocks. Read Thermally-Improved Read more »
Let’s talk atomic clock technology!
Before we get into the details of the thermally-improved Microsemi chip scale atomic clock, allow me to share Read more »
TimeProvider® 5000 is an IEEE 1588-2008 standard–compliant grandmaster clock with a carrier-grade design that provides Read more »
Ruggedized Stratum 1 NTP Server
The Microsemi SyncServer S80 is a fully integrated GPS/GLONASS antenna, receiver, NTP server, and PoE interface that easily integrates Read more »
Ruggedized Stratum 1 Network Time Server
The Microsemi SyncServer S80 is a fully integrated GPS/GLONASS antenna, receiver, NTP server, and Power over Ethernet (PoE) interface that easily integrates into existing PoE infrastructure Read more »
ALISO VIEJO, Calif., April 25, 2018 /PRNewswire/ — Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today announced it is the recipient of the Security Industry Association’s (SIA) New Product Showcase (NPS) award Read more »
These examples offer a view into what the chip-scale era in timekeeping will look like. The SA.45s CSAC delivers the accuracy and stability of an atomic clock to portable applications for the first time — Read more »
Performance Benchmarks
As innovative as the CSAC’s design is, most users will gauge its value by its performance benchmarks. In summary, these include the following:Read more »
The SA.45s CSAC employs coherent population trapping (CPT) to interrogate an atomic frequency. A laser illuminates atoms in a resonance cell with polarized radiation at two sidebands separated by the atomic resonance frequency. The atoms are excited Read more »
In a series of coming posts, we’ll write about how leading-edge technology enables a chip scale atomic clock. Please read the series and share your feedback with us.
Pairing Radiation Tolerance with the CSAC’s Low Power and High performance – brings the accuracy and stability of atomic clocks to Commercial Space applications.
Benjamin Franklin is often credited as the first person to state “time is money” in the form of an advice to a young tradesman. And though at that time it was said in terms of the opportunity cost, the statement is true today more than Read more »
Critical Infrastructure relies on position, navigation, and timing (PNT) which is now almost exclusively delivered using GNSS. The threat of GNSS errors has become Read more »
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