VIVOTEK 4X-IP7142 用户手册

Enable Daylight Saving Time: Select this option to enable daylight saving time (DST). During DST, the 
system clock moves one hour ahead. Note that to utilize this feature, please set the time zone for your 
Network Camera first. Then, the starting time and ending time of the DST is displayed upon selecting 
this option. To manually configure the daylight saving time rules, please refer to Upload / Export Daylight 
Saving Time Configuration File on page 62 for details.

Time zone: According to your local time zone, select one from the drop-down list.

Keep current date and time: Select this option to reserve the current date and time of the Network 
Camera. The Network Camera’s internal real-time clock maintains the date and time even when the 
power of the system is turned off.

Sync with computer time: Select this option to synchronize the date and time of the Network Camera with 
the local computer. The read-only date and time of the PC is displayed as updated.

Manual: The administrator can enter the date and time manually. Note that the date and time format are 
[yyyy/mm/dd] and [hh:mm:ss].

Automatic: The Network Time Protocol is a protocol serves synchronize computer clocks by periodically 
querying an NTP Server.

NTP server: Assign the IP address or domain name of the time-server. Leaving the text box blank 
connects the Network Camera to the default time-servers.

Update interval: Select to update the time with the NTP server on hourly, daily, weekly, or monthly basis.

Digital input: Select High or Low to define normal status of the digital input. The Network Camera will 
report the current status.

Digital output: Select Grounded or Open to define normal status of the digital output. The Network 
Camera will show whether the trigger is activated or not.