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2.5.
CONNECTING THE VIDEO
2.5.1. Video Input and output
The Production Afterburner requires that a serial digital HDTV video source be connected to the HD
PROGRAM IN BNC on the downconverter. The HD9155 may be configured to accept High definition
digital video in the formats shown in Table 2-6. The HD9155 video standard will autodetect the input video
type by default or may be set to specifically match the incoming video type using the 9150 Configware™
software. The HD program video will normally be connected to the video output of a HD video camera or
HD VTR.
Common Name
1080i/59.94
1080i/50
1080p/23.98sF
When one of the audio de-embedder options is fitted (models HD9155-AES, HD9155-AUD or
HD9155Q-AUD) the HD program video should be connected to the HD INPUT BNC on the De-embedder
section of the unit. The active loop through HD Output from the de-embedder should be connected to the
HD PROGRAM IN BNC on the downconverter section. On the model HD9155-AES the second HD output
from the de-embedder may be used to provide a backup recording of the camera video.
On the HD9155 versions the SDI OUT outputs contain a monitoring quality downconverted copy of the
input video with VITC and optional characters keyed in. The ANALOG OUT outputs are composite analog
video outputs with the same information as the SDI OUT outputs.
MONITOR SDI OUT output contains a high quality downconverted copy of the input video with VITC and
optional characters keyed in. The ANALOG OUT output is a monitoring quality composite analog video
output with the same information as the MONITOR SDI OUT output. In addition the Hd9155Q versions
provide two PROGRAM SDI outputs with VITC only. (The PROGRAM SDI outputs can be programmed to
behave like the MONITOR SDI outputs with VITC and characters – see chapter 5)
When the input video format is 1080p/24sF, 3:2 pulldown will be inserted to generate the 29.97 Fps video
output. The cadence of the 3:2 is determined by the input video timecode contained on either the LTC or
in the RP188 Ancillary time code packets. The 3:2 cadence can also be controlled by connecting an
external 6 Hz reference pulse connected to the Parallel I/O connector. (See section 3.2 for information on
controlling the 3:2 cadence)
2.6.
CONNECTING THE VIDEO RECORDER TIME CODE
The Video timecode is normally extracted from RP188 ancillary timecode packets on the incoming HD
video and will be at the same rate as the input video frame rate. The output VITC and LTC will be jam
synced to this code and will be delayed by the downconverter delay. The Codes and Outputs tabs of the
configuration screens in the KeyLog TRACKER™ software control the use of the Video LTC reader and
generator.
INSTALLATION
Model HD9155 Production Afterburner Manual
Pixels /
Frame Rate
Active Lines
1920 x 1080
29.97 (30/1.001)
1920 x 1080
1920 x 1080
23.98 (24/1.001)
Table 2-6: Video Input Formats
Revision 1.3
Progressive
/Interlace
I
25
I
P (sF)
On the HD9155Q versions the
SMPTE
Standard
274M
274M
RP211
Page 2-9
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