D430 camera synchronization & external projector signals?

[wenlianggao]

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Required Info
Camera Model	{ D430 }
Firmware Version	(Version 5.10.6)
Operating System & Version	{ Linux (Ubuntu 16.4
Kernel Version (Linux Only)	(e.g. 4.14.13)
Platform	PC etc..
SDK Version	{ legacy / 2.. }
Language	{C/C#/labview/nodejs/opencv/pcl/python/unity }
Segment	{Robot/Smartphone/VR/AR/others }

Issue Description

What are the signal waveforms of PIN4, PIN5 suppose to be with the following connection?

camera 1: Master, output trigger OFF, laser emitter: enabled
camera 2: Slave, output trigger OFF, laser emitter: enabled
camera 3: Slave, output trigger OFF, laser emitter: enabled
connection cable between the cameras: pin5 (ZVsync) and pin9 (GND)

[RealSense-Customer-Engineering]

[Realsense Customer Engineering Team Comment]
The PIN4 is not implemented at this moment (just leave it).

The PIN5 is the Sync trigger for both Master (output) and Slave (input). The Master Cam will generate a pulse (50us, 1.8V) on PIN5 every frame, and drive PIN5 on Slave Cams.

Thanks