Date And Time - 2N Helios IP Configuration Manual

5.5.2 Date and Time

If you control validity of phone numbers, lock activation codes and similar by time
profiles, make sure that the intercom internal date and time are set correctly.
Most 2N
up to several days' long power outages. If not equipped with this function, the intercom
loses the real time data upon power outage (or restart). Therefore, if the intercom is
powered up after a rather long period of time (after new intercom installation, e.g.),
time is set to the default value and has to be reset. You can synchronise the intercom
time with your PC anytime by pressing the
Synchronise the intercom internal time with any available SNTP server if your intercom
is not equipped with a real-time clock.
Note
Practically, the intercom real-time circuit accuracy is approximately ±0,005 %, which
may mean a deviation of
synchronise time with the NTP server to achieve the highest accuracy and reliability.
The intercom sends a query to the NTP server periodically to update its time value.
List of Parameters
®
2N TELEKOMUNIKACE a.s., www.2n.cz
®
Helios IP models are equipped with a back-up real-time clock to withstand
The intercom does not need the
function. However, be sure to set these values when you apply time
profiles and display time of listed events (Syslog, used cards, logs
downloaded by 2N
± 2 minutes per month. Therefore, we recommend you to
Synchronise
current date and time values for its
®
Helios IP HTTP API, etc.).
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