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Note
Server Address is NTP server IP address.
5.
Click Test to test server connecon.
6.
Click Save.
11.11.4 Set DST
If the region where the device is located adopts Daylight Saving Time (DST), you can set this
funcon.
Steps
1.
Go to Conguraon → System → System Sengs → Time Sengs .
2.
Check Enable.
3.
Select Start Time, End Time and DST Bias.
4.
Click Save.
11.12 Set RS-485
RS-485 is used to connect the device to external device. You can use RS-485 to transmit the data
between the device and the computer or terminal when the communicaon distance is too long.
Before You Start
Connect the device and computer or termial with RS-485 cable.
Steps
1.
Go to Conguraon → System → System Sengs → RS-485 .
2.
Set the RS-485 parameters.
Note
You should keep the parameters of the device and the computer or terminal all the same.
3.
Click Save.
11.13 Security
You can improve system security by seîž«ng security parameters.
11.13.1 Set IP Address Filter
IP address lter is a tool for access control. You can enable the IP address lter to allow or forbid
the visits from the certain IP addresses.
IP address refers to IPv4.
Network Speed Dome User Manual
118
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