
Vega-MV Router Multiviewer - User Manual
Issue 1 Revision 2
Page 114
© 2017 SAM
Module Menu
Web Interface 7.3
7.3.6 Set Time
Click ‘Set Time’ in the Module menu.
The clock and date display data can be derived from several sources; the system clock, NTP
synchronisation, LTC, or VITC from a chosen SDI input. The clock source is set by selecting
Set Time
in the
Module
menu.
There are two tabs, Time and Timezone.
The timezone should be set to the appropriate region before adjusting the clock.
Operation
:
The Timecode is displayed in a fixed position near the bottom center of the tile within the
video. The display will start to be cropped when the tile is 150 pixels or less wide. For each
input it is possible to display either the Ancillary Timecode or the DVITC from the video
source.
If VBI data is present on a video input and the video is an SDI source then the data can be
displayed on the relevant video tile (see sections 7.6.10 and 7.6.11 for setting details).
If multiple sources of timecode are present in a video source then the timecode selected for
display, in order of priority is: Ancillary VITC, Ancillary LTC and D-VITC.
In the absence of any clock, the system time is used. A battery on the MV-NET card ensures
that time data is retained if the unit is powered down.
LTC is applied to the frame through a BNC on at the rear panel of the MV-NET card, see
section 4.5. When LTC is present this source becomes the exclusive reference for clocks.
If there is no LTC present,
the frame searches the network for an NTP Server in the nearby region (pool.ntp.org).
If a server is found, the time is taken from that.
Figure 84 Set Time.
Note:
D-VITC is only available on SD sources as there is currently no standard for HD sources.
Ancillary Timecode is available on both SD and HD sources.