Plura TCC70XS, Installation & Operation Manual, Page: 104 / 128

Installation & Operation Manual TCC70XS
Page 104
Locations of ATC Data Packets
The preferred locations are based on the vertical interval switching point defined in
SMPTE RP 168. Regarding HDTV interlaced and segmented frames video formats, the
line specified for switching in the second field differs from the line in the first field. This
will be considered using setups “ On (Standard) “ as well as “ VANC “ or “ HANC “ for a
manual line selection. There will be no line correction using setups “ VANC w/o even field
correction “ or “ HANC w/o even field correction “, in these cases ATC packets will be
inserted at the same line of both fields.
Basically, ATC may be inserted in HANC or VANC space located within vertical blanking
after the line specified for switching and before the beginning of active video. If set – up
“ On (Standard) “ is used, ATC will be inserted in the recommended lines with automatic
adaption to the video format.
These are the video format
– dependent locations of the ATC data packets:
SD Video
SD 525/59.94/I (NTSC) SD 625/50/I (PAL)
1 st Field 2 nd Field 1 st Field 2 nd Field
Switching point 10 273 [10] 6 319 [6]
ATC_VITC
“ On (Standard) “
VANC 13 VANC 276 [13] VANC 9 VANC 322 [9]
ATC_LTC
“ On (Standard) “
VANC 13 VANC 276 [13]
if “ All Fields “
VANC 9 VANC 322 [9]
if
“ All Fields “
Apart from using “ On (Standard) “ to set the locations automatically, it is possible to
choose the lines manually. For SD video formats there is no difference between “ VANC “
and “ VANC w/o even field correction “ or “ HANC “ and “ HANC w/o even field
correction “. ATC will be inserted in both fields in that line selected at “Line“.
HD Video
1125 lines interlaced or
segmented frames 1125 / 750 lines progres-
sive with frame rate > 30
1125 / 750 lines
progressive with
frame rate
≤
30
1 st Field 2 nd Field 1 st Frame 2 nd Frame
Switching point 7 569 [6] 7 7 7
ATC_VITC
“ On (Standard) “
HANC 9 HANC 571 [8] HANC 9 HANC 9 HANC 9
ATC_LTC
“ On (Standard) “
HANC 10 HANC 572 [9]
if “ All Fields “
HANC 10 HANC 10
if “ All Fields “
HANC 10
Apar t from using “ On (Standard) “ to set the locations automatically, it is possible to
choose the lines manually. Please be aware of the differences regarding HD interlaced
and segmented frames video formats:
“ VANC “ or “ HANC “: 1 st field: ATC at line number a s selected at “Line“.
2 nd field: ATC one line earlier than selected at “Line“.
“ VANC w/o even field correction “ or “ HANC w/o even field correction “:
1 st and 2 nd field: ATC at line number as selected at “Line“.