Synchronizing the system time in the
14
7.3
Precision Time Protocol
Basic - L3P
Release
4.0
11/07
Figure 30: PTP Subdomains
7.3.2 Preparing the PTP configuration
After the function is activated, the PTP takes over the configuration automat-
ically. The delivery settings of the Switch are sufficient for most applications.
To get an overview of the time distribution, draw a network plan with all
the devices participating in PTP.
Note: Connect all the connections you need to distribute the PTP information
to connections with an integrated time stamp unit (RT modules).
Devices without a time stamp unit take the information from the PTP and use
it to set their clocks. They are not involved in the protocol.
GPS
Reference
(Grandmaster Clock)
Boundary
Clock
Ordinary Clock
Switch
PTP Subdomain 2
PTP Subdomain 1
PLC
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