2N Access Unit Configuration Manual
5.5.2 Date and Time
If you control validity of lock activation codes and similar by time profiles, make sure that
the2NAccess Unitinternal date and time are set correctly.
2NAccess Unitis equipped with a back-up real-time clock to withstand up to several days’ long
power outages. You can synchronise the2NAccess Unittime with your PC anytime by pressing
theSynchronisebutton.
Practically, the2NAccess Unitreal-time circuit accuracy is approximately ±0,005 %, which may
mean a deviation of±2 minutes per month. Therefore, we recommend you to synchronise time
with the NTP server to achieve the highest accuracy and reliability. The2NAccess Unitsends a
query to the NTP server periodically to update its time value.
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Note
The 2NAccess Unit does not need the current date and time values for its basic
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 2NIP intercom
HTTP API, etc.).