7 Hardware Interface
7.6.6
I/O Wiring
The Photonfocus cameras include electrically isolated inputs and outputs. Take great care when
wiring trigger and strobe signals to the camera, specially over big distances (a few meters) and
in noisy environments. Improper wiring can introduce ground loops which lead to malfunction
of triggers and strobes.
There are two roads to avoid ground loops:
•
Separating I/O ground and power supply (ISO_GND and ISO_PWR) from camera power
(CAM_GND, CAM_PWR)
•
Using a common power supply for camera and I/O signals with star-wiring
Separate Grounds
To separate the signal and ground connections of the camera (CAM_GND, CAM_PWR, data
connections) from the I/O connections (ISO_GND, ISO_PWR, ISO_IN, ISO_OUT) is one way to
avoid ground loops. Fig. 7.14 shows a schematic of this setup. In this setup the power supplies
for the camera and for ISO power must be separate devices.
I
s o l a t o r
C A M _ G N D
I S O _ I N
I S O _ G N D
G r o u n d p l a n e v o l t a g e d i f f e r e n c e
I S O _ G N D
S e p a r a t e g r o u n d
n o g r o u n d l o o p
Figure 7.14: I/O wiring using separate ground
.
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MAN075 05/2017 V1.0
Summary of Contents for MV1-D2048-3D06 series
Page 10: ...1 Preface 10 of 127 MAN075 05 2017 V1 0...
Page 12: ...2 Introduction 12 of 127 MAN075 05 2017 V1 0...
Page 26: ...3 How to get started 3D GigE G2 26 of 127 MAN075 05 2017 V1 0...
Page 32: ...4 Product Specification 32 of 127 MAN075 05 2017 V1 0...
Page 66: ...5 Functionality 66 of 127 MAN075 05 2017 V1 0...
Page 82: ...6 Precautions 82 of 127 MAN075 05 2017 V1 0...
Page 120: ...12 Support and Repair 120 of 127 MAN075 05 2017 V1 0...
Page 122: ...13 References 122 of 127 MAN075 05 2017 V1 0...
