CHAPTER 5 • WR-Z16 User Manual
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CHAPTER 5
Timing
The main purpose of the WR-Z16 is to distribute ultra-accurate
synchronization through a timing network.
The device can be configured as a Grand-Master ( "External
Reference (GM)" on page73) to retrieve time from an external
source and then redistribute it using IEE1588-2008/PTPv2 or
White Rabbit protocols.
Through its vitual clock ("Virtual Clock Overview" on page47)
centralization system, it allows to combine these protocols in mul-
tiple ways and enable resiliency by configuring multiple timing
sources. Additionally, an optional Holdover ( "Holdover" on
page78) oscillator can be included to maintain high 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 44
5.2 General Timing Management 48
5.3 White Rabbit 58
5.4 IEEE 1588-2008 (PTPv2) 62
5.5 External Reference (GM) 73
5.6 NTP 75
5.7 Holdover 78
5.8 Miscellaneous 81
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