User Manual of DS-7100HWI/HVI-SL Series DVR
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Figure 8.11 Register the Device
Note: Only lower-case English alphabet, numeric and ‘-’ can be used in the alias of the device and the
alias must be started with letters of the lower-case English alphabet.
5. Click the Apply button to save and exit the interface.
8.2.3 Configuring NTP Server
Purpose:
A Network Time Protocol (NTP) Server can be configured on your device to ensure the accuracy of system
date/time.
Steps:
1. Enter the Network Settings interface.
Menu > Configuration > Network
2. Select the NTP tab to enter the NTP Settings interface.
Figure 8.12 NTP Settings Interface
3. Check the Enable NTP checkbox to enable this feature.
4. Configure the following NTP settings:
• Interval: Time interval between the two synchronizing actions with NTP server. The unit is minute.
• NTP Server: IP address of NTP server.
• NTP Port: Port of NTP server.
5. Click the Apply button to save and exit the interface.
Note: The time synchronization interval can be set from 1 to 10080min, and the default value is 60min. If the
device 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 device is setup in a more
customized network, NTP software can be used to establish a NTP server used for time synchronization.
8.2.4 Configuring UPnP™
Purpose:
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