Avenview RTERM Series - Manual (Page 64)

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6.2 Date and Time
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.
Note:

The IP serial console provides RTC (Real Time Check) function powered by a lithium battery (CR2032,
3V). So the date / time will be maintained even when power is lost to the unit.

If you repeatedly loss the date / time information please replace the battery.

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.