Continuous synchronization is based on NTP (Network Time Protocol). The following settings are
available with NTP client:
• Off: No NTP synchronization
• Regular NTP client: Regular NTP synchronization, according to the NTP standard. This is
compatible with all NTP servers and network configurations. Approximately one second
accuracy is guaranteed.
• Local network NTP client: Works only if the camera and the NTP server is on the same local
network, but guarantees higher accuracy than the standard NTP client. Also places a higher
load on the NTP server.
The following parameters have to be set:
NTP server hostname/IP: The address of the NTP server. (If the NTP server does not run on the default
port (123), specify the port in the following format: [hostname/ip]:[port].
Max. I/O time: Maximal duration of a query-answer cycle between the camera and the NTP server,
before the answer is dropped. This influences the accuracy. Best practice is to set it to 10000 µs on a
local network.
Log: If it is enabled, the current state of synchronization can be monitored at the Maintenance /
Camera log page.
To initiate an immediate synchronization to the NTP server, click the button.
The camera has an internal battery feeding its Real Time Clock (RTC) while the camera is powered
off. In a power down state the battery is able to provide power to the RTC for approximately 2
weeks. It takes about 12 hours in a power up state for the battery to completely recharge.
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