Luma Surveillance LUM-500-DVR-16CH, Technical Reference Manual

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Luma Recorders
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Web Interface
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Time Settings
This window lets you choose your time zone, decide how your
system will maintain the time, and opt in or out of daylight saving
time.
Choose your time zone with the dropdown menu. North American
time zones range from Hawaii (GMT-10:00) in the west to
Newfoundland (GMT-03:30) in the east.
Choose either network time protocol (NTP) or manual time sync.
This determines how your system checks to ensure that its time
stamps remain accurate. Selecting one option deselects the other.
After adjusting your time settings, click Save before switching to
another window.
NTP
With NTP, your network pings the national server every so often to
maintain proper time. The NTP server synchronizes all participating
systems to within a few milliseconds of Coordinated Universal
Time. This provides you with your most accurate time stamping.
Using NTP requires Internet access. There is no need to change
any of the settings, unless you want to adjust the interval due to
bandwidth or precision concerns.
Server Address: This is the site that your recorder pings for time
stamps.
NTP Port: This port communicates with the time server.
Interval: This shows how often your system checks for an update.
Manual Time Sync
With manual sync, your recorder uses its internal clock. You can
either set the time on your recorder manually, or click on the box
to synchronize your system with your network PC. When you
synchronize with your network PC, the recorder performs a one-
time adjustment; it does not continually calibrate its time against
your system.
We do not recommend this setting because any electronic system’s
internal clock can drift. However, this choice is your only option if
your network is not connected to the Internet.