Network Video Recorder User Manual 
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The time synchronization interval can be set from1 to 10080min, and the default value is 60min. If the NVR is 
connected to a public network, you should use a 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 NVR is setup in a more customized network, 
NTP software can be used to establish a NTP server used for time synchronization. 
11.2.5 Configuring SNMP 
Purpose: 
You can use SNMP protocol to get device status and parameters related information. 
Steps: 
1.  Enter the Network Settings interface. 
Menu >Configuration> Network 
2.  Select the SNMP tab to enter the SNMP Settings interface, as shown in Figure 11. 15. 
 
Figure 11. 15 SNMP Settings Interface 
 
3.  Check the SNMP checkbox to enable this feature. 
4.  The enabling of SNMP may cause security problems. Click Yes to continue or No to cancel the operation.   
 
Figure 11. 16 SNMP Settings Interface 
 
5.  When you choose the Yes option in step4, configure the following SNMP settings: 
•  Trap Address: IP Address of SNMP host. 
•  Trap Port: Port of SNMP host. 
6.  Click the Apply button to save and exit the interface.   
 
Before setting the SNMP, please download the SNMP software and manage to receive the device information via 
SNMP port. By setting the Trap Address, the NVR is allowed to send the alarm event and exception message to 
the surveillance center. 
11.2.6 Configuring More Settings   
Steps: