Specifications

RED SCARLET-X OPERATION GUIDE

955-0003_v4.0, Rev-A | 176

SYNC (VIDEO SYNC)

A 4-pin LEMO connector supports shutter synchronization, GPI, timecode and genlock input 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.

Alternatively, this input may be used as a GPI (General Purpose Input) trigger, whose function is

programmed in the USER KEYS menu. Default function for the GPI trigger is Record Start / Stop.

The SMPTE timecode input provides a frame accurate time stamp for each frame of recorded video. External

TC must be chosen in the Project > Timecode menu. When SMPTE timecode is detected it will align the

internal TC value to the external TC signal at every :00 frame crossing of the external TC signal.

The Video Genlock input may be used as a vertical interval reference signal for the sensor and HD-SDI

outputs when precise synchronization is required between cameras, such as for 3D and live broadcasts.

NOTE: HD-SDI monitor outputs will automatically sync to the external GENLOCK signal as soon as it is

detected, there is no need to enable this function. Sensor shutter sync to GENLOCK is only supported with

HD-SDI. Sensor shutter sync to GENLOCK is not possible when using HDR. Selecting GENLOCK sync mode

will disable HDR.

View into Camera SYNC (Video Sync) Interface Connector

Mating Connector: FGG.00.304.CLAD27Z

SIGNAL

DESCRIPTION

GROUND

Common Ground

SS/GPI

Shutter Sync / GPI Trigger Input

TIMECODE

SMPTE unbalanced timecode Input

GENLOCK

RS170A Tri-Level Sync Input

NOTE: The Camera Brain’s Shutter Sync / GPI Trigger uses a 3.3 V Schmitt trigger (5 V tolerant). It is not a

switch closure circuit. Therefore, it requires current supplied by the trigger source. Both edges of the input

signal may be used as a trigger.