Eaton Network Management Card User Manual page 63

Synchronize with NTP server: Enables connection with a time server, either available on the company's internal
network or on the Web. This server communicates GMT time. The IP address or hostname of the time server
must be entered, and the time zone of your geographic area must then be selected from the list. Connection is
made with the server and the date and time are set after clicking on the "Save" button. Time is updated every five
hours, thus preventing any drift in the time. After two attempts, if the NTP server is not accessible, the card
resends periodic requests.
The card uses the NTP protocol (UDP 123 port). The "firewall" must be configured to transmit queries outside the
intranet. When ntp could not be contacted, an error message is issued at the top of the web page.
Note 1:
The even the card is used in a UPS supporting time-stamping, the card's time is automatically synchronized with
that of the UPS.
Note 2:
After start-up, if the card is in manual mode or if no NTP server was reached, the card initializes at 01/01/1970
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