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SerVision Embedded Video Gateway System Guide

Configuring System Settings 33

For example, according to the settings in the figure above, in which Hours is “0” and Minutes is “10,” the

screensaver is turned on whenever there is no user input for ten minutes.

11. Click Update, and then save the settings. They will be implemented after the unit is restarted (see Saving

Configuration Changes, page 125).

Setting the Unit Time

The unit has a built-in battery-backed clock that keeps track of the date and time even when the unit is turned off. It

is important to ensure that the time on the unit is accurate whenever the system is running; all video recordings

include timestamps that are derived from the unit's time, and playback relies on these timestamps. An inaccurate

clock can lead to misunderstandings when playing recorded video. Moreover, the unit will not record if the time on

it is invalid.

The clock can be set by manually synchronizing its time with the time on the PC on which the configuration utility

is running. This should be done when the system is first set up.

Like most clocks, the unit's clock has a tendency to drift slightly over time. Therefore, the time should be updated at

frequent intervals. The time can be updated manually at any time. The unit can also be configured to update its

clock automatically by connecting to an NTP time server at specified intervals. This option only works when the

unit has access to one or more NTP time servers, either public ones on the internet or locally-installed ones on the

LAN. Public NTP servers can be used free of charge and can be easily accessed when the unit has internet access.

MVG and CVG-M units can also be configured to update their clocks from GPS servers.

In addition to the time itself, the general time settings – time zone and daylight savings time (summer time) –

should always be configured correctly. The time zone and daylight-savings settings should be set correctly before

the clock is set. (After setting the time zone, be sure to click Update and restart the unit before manually updating

the time.) Daylight savings time can be activated manually or configured for automatic activation. When daylight

savings time is activated, the time on the unit clock is set one hour ahead of the time in the selected time zone.



To set the general time settings:

1. In the Main Menu, under System, click Date & Time. The Date & Time Settings screen opens:

Figure 31: Date & Time Settings screen (MVG)

Note: The current date and time recorded on the clock of the Video Gateway unit appear in the System Time

field.

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