Timing - Safran WR-Z16 User Manual

CHAPTER 5

Timing

The main purpose of the WR- Z16 is to distribute ultra- accurate syn-
chronization through a timing network.
The device can be configured as a Grand-Master
on page 85) to retrieve time from an external source and then redistribute it
using NTP, IEE1588-2008/PTPv2 or White Rabbit protocols.
Through its virtual clock
system, it allows to combine these protocols in multiple ways and enable resi-
liency by configuring multiple timing sources. Additionally, an optional Hol-
dover ("Holdover" on
accuracy (1.5us < 24h after learning 3 days) even if all timing references are
down.
The following topics are included in this Chapter:
5.1 Multi-sources & Resiliency
5.2 General Timing Management
5.3 White Rabbit
5.4 IEEE 1588-2008 (PTPv2)
5.5 External Reference (GM)
5.6 NTP
5.7 Holdover
5.8 Miscellaneous
CHAPTER •
5
("Virtual Clock Overview" on
page 90) oscillator can be included to maintain high
WR-Z16 User Manual
("External Reference (GM)"
page 57) centralization
54
59
69
74
85
87
90
94
53