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17-5 SMPTE Card, WR-SMPT
The SMPTE (Society of Motion Picture and Television Engineers) & V Sync
(Vertical Sync) option card lets external time code, usually from a video
source, control the DA7’s Automation functions. When using the DA7 in a
video post-production environment, the video master device will slave the
DA7 to its time code, which can be preset in the
[AUTOMATION>EXECUTE] and [AUTOMATION>SETUP] windows.
The SMPTE connection is made to the DA7 with a male XLR plug, while the V
Sync signal connects to the Rear Panel with a BNC connector. The XLR is an
UNBALANCED connection. When sending a balanced signal to the card, pins
1 & 3 of the incoming male XLR should be tied together. This is a -10 dB
input.
The SMPTE time code that the DA7 accepts is longitudinal, or LTC. Although
often generated by a video deck, SMPTE time code can be generated by a
number of devices, non-video in nature. The V Sync signal allows the DA7 to
synchronize to an incoming composite video signal by reading the video sync
pulse.
Chapter 17
DA7 Users’ Guide
17
-
9
17
Options
SYNC IN
UNBAL
SMPTE IN V
75
SMPTE & V Sync Card
WR-SMPT
SMPTE & V Sync Card
when using timecode for AUTOMATION during TANDEM
operations, 2 WR-SMPT cards must be used, one in each DA7.