The IPCS maintains current date and time information. The IPCS clock and calendar settings are backed up by internal
battery power. The user can change the current date and time.
There are two methods of date and time settings. The first is to use the NTP server to maintain the date and time settings.
If the NTP feature is enabled, the IPCS will obtain the date and time information from the NTP server at each reboot, then
automatically align with the NTP server time per hour. If the NTP server is set to 0.0.0.0, the IPCS will automatically use the
default NTP servers. In this case, the IPCS should be connected from the network to the Internet. The second method is
to set date and time manually without using the NTP server. This will allow the date and time information to be kept
maintained by the internal battery backup.
By convention, weather scientists use one time zone, Greenwich Mean Time (GMT). This time is also known as
Universal Time (UTC). The user may also need to set the time zone and the time offset from UTC depending on
the user location to set system date and time exactly, and the time offset from UTC. It allows the IPCS to calculate
the exact system time. The Time offset value x could be positive or negative integer. Please refer to the website
http://time_zone.tripod.com/ for the time offset from UTC.
6.2 Date and Time
Chapter 6
P.45
Note :
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The IP serial console provides RTC (Real Time Clock) function powered by a lithium battery (CR2032,
3V). So the data/time will be maintained even encounter power loss to the unit.
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If you repeatedly loss the date / time information please replace the battery.
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Replace the 3-Volt CR2032 battery only with the same or equivalent type recommended by the battery
manufacturer. A new battery can explode if it is incorrectly installed. Discard the inappropriate one if
possible.