Similar to PTP, it does not require GPS installations. Such installations can be costly and are sensitive to their installation location. Additionally, gPTP uses a logical syntonization technique that can deliver fast and accurate frequency locking using ‘off-the-shelf’ components – which is an essential enabler for developing and deploying large-scale IoT systems.
So how do you prove timing and synchronisation performance meets standards compliance? Ideally a robust testing structure to validate the ‘system’ prior to deployment helps avoid adverse impact and costs associated with problems discovered post-deployment. For example, interoperability is one of the biggest challenges in deploying gPTP networks as the network requires compatible applications of the PTP profile across all devices. Testing can reduce interoperability risks by highlighting device and network misconfigurations and protocol-related issues and verify compliance to the specified standards.
Test equipment that can simulate negative network conditions such as protocol errors and timing offsets etc., allows designers to evaluate how each device within the network might respond under such conditions. This not only helps with the optimization of time-sensitive traffic flows, but also validates network performance.
Of course, test equipment should have a measurement accuracy of at least an order of magnitude greater than the specified requirements. Test equipment that provides a real-time test environment to analyse device delay calculations, path delay calculations, neighbour rate ratio calculations simultaneously, together with any stress-testing stimuli, will give you the confidence that time synchronisation performance truly does comply with the standards.
How can Calnex help?
No matter whether you want to validate PTP fields for interoperability, optimise network design, test devices in negative conditions, or even recreate real-world conditions in your lab, Calnex Paragon family and Sentinel can help. Our equipment is designed to: help address the test challenges, reduce the complexity of testing, enhance test effectiveness and validate standards compliance of devices and networks to the highest levels of accuracy available.