SYNC (VIDEO SYNC)
A 4-pin LEMO connector supports shutter synchronization input, GPI, timecode and genlock signals.
The shutter Sync Input signal acts as an immediate response hardware trigger to commence a scan.
This is useful for motion control and other applications where the camera is driven by a master timing
device. When using SYNC as the camera shutter timing reference, fine shutter start time timing
(SHUTTER PHASE) is disabled, make any timing adjustments at the external SYNC generator itself.
Alternatively, this input pin may be used as a GPI (General Purpose Input) trigger, whose function is
programmed in the USER KEYS menu. Default is Record Start / Stop.
A SMPTE timecode input signal provides a frame accurate time stamp for each frame of recorded video.
A Video Genlock input signal may be used as a vertical interval reference signal for applications that
require precise synchronization between cameras, such as 3D and live broadcasts. When using
GENLOCK as the camera shutter timing reference, fine shutter start time timing (SHUTTER PHASE) may
be adjusted.
Figure 22: View into camera SYNC (Video Sync) Interface connector
Mating Connector: FGG.00.304.CLAD27Z
Pin
Signal
Description
1
GROUND
Common Ground
2
SS/GPI
Shutter Sync / GPI Trigger Input
3
TIMECODE
SMPTE unbalanced timecode Input
4
GENLOCK
RS170A Tri-Level Sync Input
NOTE: The Shutter Sync / GPI Trigger uses a Schmitt trigger operating at 3.3V. Both edges of the
input signal can be used as a trigger event.
For example, when GPI trigger is used as a Record Start / Stop.
x
Start Record:
Ground - 3.3V Transition
x
During Record:
Hold at 3.3V
Version 1.4.0 SVN 29352 BETA
125
APRIL 19, 2011
©2011 RED.COM INC.
