User manual
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2. Check the Enable NTP box to enable this feature.
3. Select the following NTP settings:
— Interval: Interval in minutes between the two synchronizing actions with an NTP server.
NOTE: The synchronization time interval can be set from 1 to 10080 minutes. The default value is 60 min. If the DVR
is connected to a public network, use an NTP server that has a time synchronization function, such as the server at the
National Time Center (IP Address: 210.72.145.44). If the DVR is setup in a more customized network, NTP software can be
used to establish a NTP server used for time synchronization.
— NTP Server: IP address of NTP server
— NTP Port: Port of NTP server
4. Click Apply to save your settings and close the menu.
7.4 Conguring Multicast
Using the multicast function, more than 64 cameras are connectable. A multicast address spans the Class-D IP range of 224.0.0.0 to
239.255.255.255. We recommended that you use the IP address range from 239.252.0.0 to 239.255.255.255.
1. Enter the Network More Settings interface. Go to Menu | Conguration | Network | More Settings
2. Set the Multicast IP address. When adding a device to the Network Video Surveillance Software, the multicast address must be
the same as the DVR’s multicast IP.
3. Click Apply to save your settings and close the menu.
SECTION 7: NETWORK SETTINGS