By Andreja Jarc. This time I prepared some experiments with different IEEE 1588 / PTPv2 configurations where the accuracy of the end device was measured for each test case. In all Test cases a Meinberg M500 IMS (modular platform in a railmount … [Continue reading]
By Andreja Jarc. Synchronized timing is vitally important when many systems work together in a network. Services such as Logfiles, Correlation of Events, User Authentication Mechanisms, Job Scheduling e.g. for backups or Active Directories … [Continue reading]
Five Minute Facts About Packet Timing By Doug Arnold. A while back I posted about the Telecom Profile for Frequency Synchronization, or ITU-T G.8265. In the view of the International Telecommunications Union (ITU), frequency was all they could … [Continue reading]
By Andreja Jarc. The production and demand of electrical power must be the same at all times for stability and optimal operation of railway power grids. If there is too much power it will dissipate as heat or cause an over load at a transform … [Continue reading]
By Andreja Jarc. The timing industry is anxiously waiting for the unavoidable Leap Second Insertion which is announced for this year on June 30, 2015 at UTC midnight. The Leap Second has been introduced by The International Earth Rotation Service … [Continue reading]
By Andreja Jarc. Introduction Meinberg LANTIME servers with a fw 6.17.004 or higher are enhanced with a new NTP monitoring feature. This feature enables monitoring of NTP performance of up to 100 external NTP nodes (servers and clients) attached in … [Continue reading]
Five Minute Facts About Packet Timing By Doug Arnold. The IEEE Standard for Synchrophaser Measurements for Power Systems (IEEE C37.118.1 -2011) recommends that phase measurement equipment in power systems by synchronized to UTC to within 1 μs. … [Continue reading]
By Andreja Jarc. At this time I will grant you a short summer break from all the theory :-) and we will do some hands-on refreshment instead! Let’s check if PTP messages between a GM (Grandmaster) and a slave clock both configured with the Default … [Continue reading]
By Andreja Jarc. In my last post I promised to show you how to configure the IEEE 1588 Default Profile on a grandmaster (GM) via a web interface. This is what we will do right now. We will use the same PTP master device M600/GPS/PTP from … [Continue reading]
By Andreja Jarc. The theory on IEEE 1588 PTP its functions and features have been extensively covered in our previous blog posts. To refresh your knowledge you can refer here. As you may have noticed the PTP environment is exceptionally complex due … [Continue reading]