PTP Grandmaster Clock from Time and Frequency Solutions

Posted by audreytaylor on April 29th, 2013

Today,increasingly more data packets are transferred to and processed in a shorter period of time.This trend is observed in the automation industry. For this reason, communication based on Ethernet technology was chosen as transmission technology for the near future. Except for the transmission speed and ease of configuration, another important aspect in industrial automation is the precise synchronization between network devices. This is imperative for electricity distribution networks, because it requires precise marking time and the synchronization of the network to coordinate widely distributed equipment and to adjust the energy transfer. So, when speaking of PTP Grandmaster Clock or NTP Network time server, Time and Frequency Solutions is your solution!

Network TimeProtocol (NTP) is a protocol for time synchronization for data networks, first used in 1985.NTP Network time server is based on a hierarchical and stratified system in order to spread the current time on the network.NTP imposes a tree type hierarchical architecture of the network in order to avoid cyclic dependencies.

PTP is a standard protocol used in industry to facilitate accurate transfer of rate and time to synchronize clocks using an Ethernet network based on packet data. The protocol synchronizes the local clocks of each network device with a clock system called"Grand-Master". In its basic form,PTP protocol does not require administration.Industrial systems,such as the automation networks in electrical substations, are based on precise time synchronization in order to coordinate the activity of various subsystems and equipment.However, many existing time synchronization technologies are not suited tothe requirements of industrial automation systems of measurement and control because they are insufficiently precise or inefficient in terms of cost.

In a network based on IEEE1588, the PTP Grandmaster Clock determines the reference time for the entire automation system of the electric substation. The Ethernet switchacts as a peripheral clock or a transparent clock while the additional equipment, such as concentrators, IED's and the protective equipment,behaves like normal watches. All these devices are organized ina hierarchy of master-slave synchronization with PTP Grandmaster Clock on top of it.The PTP packet exchange between masterand slave devices and the automatic adjustment of normal watches leads to the synchronization of the entire network. Thus, only the PTP Grandmaster Clockmust be connected to the GPS receiver for time synchronization, ensuring the accurate transmission of the time to the rest of the network equipment.

We offer various products depending on your purpose. You should choose us because we are recommended in placing the customer first, dealing with projects regardless of size, complexity, affordability of solutions and flexibility. We honour requests from all over the world, due to our global distribution network. The products that we supply include Modular Timing Systems, Serial and Frequency Distribution Systems, LED, LCD and Analogue Time Displays, etc. The products are built based on the highest standards of quality, reliability and professionalism. Our team is dedicated to you in solving all of your problems regarding your projects, applications and desired functionality of our systems. Contact us for a professional collaboration in the field of high precision time frequency synchronisation systems and instruments.

Searching for a stable and safe PTP Grandmaster Clock? We offer you this and Network time server on your liking!

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audreytaylor
Joined: December 23rd, 2012
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