Benefits of IEEE 1588 Precision Time Protocol In The New Generation Networks

California, U.S.A., February 2019 – Ethernet Direct Corporation, a professional and primary provider of industrial networking and communication solutions shares our new industrial products and technologies focusing on IEEE 1588 PTP V2 protocol.

IEEE 1588 Precision Time Protocol enables highly precise time synchronization over an Ethernet network over a packet-based network such as Ethernet. This protocol provides a very precise mechanism to correct for delays introduced in the network path from the master clock to the slave clocks. Many power & energy industry focused on PTP to achieve accuracy in electric utility substation automation applications.

The new generation networks are converging on Ethernet to interconnect for data acquisition and control.

The IEEE 1588 PTP V2 is designed to synchronize distributed and large systems over networks.

The most important innovation is Ethernet Direct industrial switches support hardware time stamp. Ethernet Direct IEEE PTP V2 switches can provide clock accuracy to primary reference clock in 50 nanoseconds. Time-stamping is achieved within the IEEE-1588 Ethernet physical interface itself. Our switches can be configurable to act as grand master clock source as supports IEEE PTP V2 for precise synchronization to operate in Ordinary-Boundary, Peer to Peer Transparent Clock, End to End Transparent Clock, Master, Slave port by each port. The application of PTP is typically deployed on local networks and designed for local systems requiring accuracies beyond those attainable using NTP or for applications that cannot bear the cost of a GPS receiver at each node, or for which GPS signals are inaccessible. The PTP V2 concept of a “transparent clock” notes the time that it receives a PTP packet on an ingress interface, and notes it again when the packet is transmitted on an egress interface. The switch can then inform the PTP message recipient of the delay introduced by the switch. In this way, network delay can be fully eliminated as a source of synchronization error. Reference to Wikipedia description of the IEEE 1588 architecture, this standard describe a hierarchical master-slave for clock wherein characterized by a time distribution system consists of one or more network segments and one or more clocks. An ordinary clock is a device with a single network connection and is either the source of (master) or destination for (slave) synchronization reference. A boundary clock has multiple network connections and can accurately synchronize one network segment to the other. A synchronization master is selected for each of the network segments in the system. The root timing reference is called the grandmaster. The grandmaster transmits synchronization information to the clocks residing on its network segment. The boundary clocks with a presence on that segment then relay accurate time to the other segments to which they are also connected. A simplified PTP system frequently consists of ordinary clocks connected to a single network, and no boundary clocks are used. A grandmaster is elected and all other clocks synchronize directly to it.

Precision timing solutions serve to increase an electric utility’s efficiency and uptime by improving monitoring and troubleshooting capability while also reducing capital expenses by converging timing and data networks.

To understand more about Ethernet Direct IEEE 1588 PTP switches and technologies, please e-mail