evertz 8010TM, Инструкция по эксплуатации

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Model 8010TM SDI Time Code Master Manual
OPERATION
Revision 1.5.1
Page 3-13
How does the transition to DST end?
Let's say that DST ends at 2:00 am local time and DST is one hour ahead of normal time:
DST end transition
Local time
HH:MM:SS
DST or normal? Comments
00:59:59 DST
01:00:00 DST
01:00:01 DST
...3556 seconds from 01:00:02 to 01:59:57 daylight saving time not shown...
01:59.58 DST
01:59.59 DST
01:00:00 Normal Time is turned back to normal
01:00:01 Normal
...3556 seconds from 01:00:02 to 01:59:57 standard time not shown...
01:59.58 Normal
01:59:59 Normal
02:00:00 Normal
02:00:01 Normal
Note that local time between 1:00:00 and 1:59:59 actually is repeated twice this day, first during DST
time, then clocks are turned back one hour to normal time, and the hour is repeated during standard
time and therefore this day has 25 hours (instead of 24 hours). To avoid confusion when referring to
time within this hour, it is important to tell whether it happened before or after the change back to
normal time. For further information about daylight saving time in your area consult the web page
http://www.timeanddate.com/time/aboutdst.html.
For information about enabling DST compensation see section 3.7.8
3.4.9. 25

30 Convert Mode
The 8010TM can be operated in a 25

30 time code conversion mode. (Often referred to as EBU and
SMPTE time code respectively) This feature would normally be used to convert time code in standard
conversion applications. In convert mode incoming active reader’s time code in the input video
standard is converted to time code in the output video standard. The 8010TM is connected to video in
the output video standard. The hours, minutes and seconds of the output code are jam synced to the
input code. The frames run at the normal frame rate of the output video standard.
The 8010TM
OFFSET register can be used to enter a frame offset to account for frame delays in the
standards converter.
The system configuration drawings below show how the system will be configured in the translate mode
of operation.

When converting from 30 Fps TO 25 Fps code, the input code must be in the Drop
Frame format. When converting from 25 Fps to 30 Fps code, the Generator DROP
FRAME mode must be set to DROP FRAME. (See section 3.4.12)