Appendix E - Application Examples; Application Example 1: Traditional And Modern Time Sync; Application Example 2: System Wide Grandmaster Clock; Figure 44: Traditional X Modern Time Synchronization - GE Reason RT430 Technical Manual

Gnss precision-time clock

Hide thumbs Also See for Reason RT430:

Table of Contents

RT430/434

Appendix E – Application Examples

The first example illustrates the traditional and modern manners to synchronize

devices, using a single time source: RT430. In the left, the clock provides NTP and

IRIG-B for legacy IEDs, and in the right, the PTP represents the modern protocol for

time synchronization. Using Ethernet networks, the PTP is distributed through PTP-

aware Ethernet switches and whenever a legacy IED needs to be included in a

modern architecture, the RT431 acts as a PTP translator converting PTP to IRIG-B or

PPS.

Using the RT430 along with GE JunglePAX is a great way to have PTP over a wide

network. The next figure exemplifies an architecture which a given application has a

local PTP Grandmaster clock, which commonly will be the Best Grandmaster Clock

for the local IEDs. Whenever this local clock became unavailable or does not

represent the best accurate clock, the local IEDs can count with a remote PTP

Grandmaster clock, which is called as System Wide Grandmaster.

Chapter 10 - Appendixes

RT430/434

Table of Contents

Reason rt434