WITHROBOT oCam-1CGN-U-T User manual

oCam-1CGN-U-T™
User Manual
2019. 4.
WITHROBOT Inc.

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Revision History
Rev
Date
Description
Author
1.0
2019. 4
1st Release
PD
Note
This product is for indoor use only. Severe electrostatic stress can damage the
product.

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CONTENTS
Revision History 1
1. INTRODUCTION....................................................................................................................... 3
Features 3
External View 4
Additional Technical Information 5
2. SPECIFICATIONS ......................................................................................................................6
Camera Specifications 6
Board Dimensions 7
Case Dimensions 7
3. TRIGGER SIGNAL.....................................................................................................................8
Trigger Signal Connector Specifications 8
Trigger Signal Specifications 9
4. HOW TO USE ON WINDOWS SYSTEM............................................................................11
Connection to Windows PC 11
Viewing the Camera Image 12
4. HOW TO USE ON LINUX SYSTEM ....................................................................................14
Connection to Linux PC 14
Viewing the Camera Image 14
5. NOTES ......................................................................................................................................18
6. TRIGGER SIGNAL BOARD....................................................................................................19
APPENDIX ....................................................................................................................................21
Specifications of the Bundle M12Lens 21
Specifications of the Onboard M12 Lens Holder 22
How to Update the Camera Firmware 23

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1. INTRODUCTION
Features
oCam-1CGN-U-T is a 1 mega pixels global shutter external trigger color camera with the
following features.
External Trigger: It accepts wide range of external trigger signal from 3V to 24V DC to
control precise timing of image acquisition and to be synchronized with external lights and
even with other cameras.
Interface: USB3.0 SuperSpeed
High Speed: Up to 54 fps @1280 x 960, 180 fps @640 x 480
Easy Installation: With UVC 1.1 support, no additional driver needs to be installed for
Windows and Linux.
Versatility: Supports wide range of standard M12 lenses with a lens replaceable structure.
Global Shutter: The electronic global shutter image sensor provides sharp images without
image skew.

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External View
Figure 1. External view of oCam-1CGN-U-T
Figure 2. oCam-1CGN-U-T board
Protective Case
Replaceable
M12 Lens
Lens Lock Ring
Mounting Hole
for Tripod
External Trigger
Connector
USB 3.0
Connector

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Additional Technical Information
Further technical information including the latest firmware and example source codes are
available at “https://github.com/withrobot/oCam/tree/master/Products/oCam-1CGN-U-T”.
Figure 3. Technical information site

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2. SPECIFICATIONS
Camera Specifications
Image Sensor
OnSemi AR0135 CMOS Image Sensor, 1/3 inches
Interface
USB 3.0 SuperSpeed
Resolutions
USB 3.0
1280 (H) x 960 (V) pixels @54, 50, 30, 25, 15 fps
1280 (H) x 720 (V) pixels @60, 50, 30, 25, 15 fps
640 (H) x 480 (V) pixels @100, 90, 60, 50, 30, 25, 15 fps (binning)
320 (H) x 240 (V) pixels @180, 150, 120, 100, 60, 50 fps (cropping)
USB 2.0
1280 (H) x 960 (V) pixels @30, 25, 15 fps
1280 (H) x 720 (V) pixels @30, 25, 15 fps
640 (H) x 480 (V) pixels @100, 90, 60, 50, 30, 25, 15 fps (binning)
320 (H) x 240 (V) pixels @180, 150, 120, 100, 60, 50 fps (cropping)
Image Format
Bayer RGB
Shutter
Global Shutter
Camera
Controls
Manual Exposure Control
Gain Control
Manual White Balance Red Control
Manual White Balance Blue Control
Auto White Balance Setup (by oCamViewer of WITHROBOT Inc.)
Lens
Standard M12, Replaceable
Supported OS
Windows 7 / 10, Linux
Power
USB Bus Power, DC 5V / 180mA
Operating
Temperature
0°C ~ + 70°C
Field Of
View(FOV)
50˚(V) x 92.8˚(H) x 110˚(D) (Default Bundle Lens)
Weight
Approx 27.2 grams (including protective case)
PCB Size
39mm x 39mm
Case Size
49mm x 49mm x 20mm
Table 1. Camera specifications

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Board Dimensions
Figure 4. Board size (Unit: mm)
Case Dimensions
Figure 5. Case size (Unit: mm)
49
49
49*
* 51mm with tripod mounting adapter

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3. TRIGGER SIGNAL
Trigger Signal Connector Specifications
The oCam-1CGN-U-T accepts a external trigger signal through the 3-pin connector on the back
side of the camera. The pin descriptions are as follows:
Pin 1: Signal ground
Pin 2: For trigger signals in the range of 3V ~ 5V DC
Pint 3: For trigger signals in the range of 5V ~ 24V DC
Figure 6. Pin description of the external trigger input signal connector
The circuit diagram of external trigger input is shown in the next figure. The input pins and the
internal circuit are isolated with a photo coupler. Therefore, the external input trigger signal
needs to supply more than 2 mA current to activate properly the trigger.
GND
Input pin for Trigger Signal (3V ~ 5V)
Input pin for
Trigger Signal (5V ~ 24V)

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Figure 7. Trigger input circuit
Trigger Signal Specifications
The camera acquires image at the falling edge of the trigger signal. Depending on the trigger
signal, the camera operates in one of the 3 modes described as follows.
One Shot Mode
With this mode, the camera acquires one frame of image. The trigger signal should maintain the
low level at least 1 msec(T1).
Figure 8. One shot mode
Multi Shot Mode
With this mode, the camera acquires multiple frames of images. The interval between the two
adjacent trigger pulses should be at least 2 msec (T2). To get images as specified by the trigger
signal frequency, it is needed to set the camera speed at least twice the trigger signal frequency.
If the camera speed is set below this, the trigger signal will be applied while the previously
acquired image frame is being transmitted. For example, to apply 30 Hz trigger signal, the
camera should be set at least 60 fps.