DVR systems NVR38xx Series - Manual (Page 101)

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Parameter Function
Enable Enable NTP function or not.
Server IP Server IP address
Port Server port. System supports TCP only and default port value
is 123.
Time Zone Device current time zone.
Update Interval Time update interval value.
Alarm Centre
Alarm centre interface is shown as below.
Please input alarm centre server IP, port number. Once there is an alarm occurred, system can
notify the alarm centre as you specified here.
Figure 8-31
UNPN
Go to the UPnP interface, you can see an image is shown as in Figure 3-39.
It allows you to establish the mapping relationship between the LAN and the public network.
Here you can also add, modify or remove UPNP item.