TIME SYNCHRONIZATION
COMMUNICATION INTERFACE CONNECTION
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1TGC908004
5.3.
Time Synchronization
In order to provide the correct time and date the Time Sync option must be activated in Digi-
tal Gateway and it may require a time server in the Switchgear Control Network.
The protocol used for time synchronization is the standard Network Time Protocol (NTP).
Time Sync must be activated through the ABB Engineering Tool.
5.3.1.
Option 1
A standard network component is installed which can provide the time signal as NTP Server.
Such an NTP Server can be a computer or network server as well as Ethernet switches. As an
option, this NTP Server can be equipped with a GPS Receiver to provide accurate time for the
location.
In case of Option 1, Time Server hardware is not part of MNS and has to be supplied
separately.
If the Time Server is out of service, the Digital Gateway runs with the internal RTC
(Real Time Clock) until a new Time Server signal is available. Redundant Time Servers
are not supported.
Figure 15 Example, showing 3rd party Network Switch and 3rd party NTP Server in a Switch-
gear Control Network
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