Allied GX1920 User manual

GX1920 / GX1920C
Allied Vision Technologies Canada Inc.
101-3750 North Fraser Way
Burnaby, BC
V5J 5E9 / Canada
Technical Manual
700061A
October 29, 2010

GX1920 Technical Manual Page 2
Table of Contents
Table of Contents .......................................................................................................... 2
Introduction ............................................................................................................ 5
Precautions.............................................................................................................. 5
Warranty ................................................................................................................. 5
Specifications .......................................................................................................... 6
Supported Features ................................................................................................... 7
Mechanical .............................................................................................................. 8
Connections............................................................................................................. 9
Cleaning the Sensor..................................................................................................15
Adjusting the C-mount ..............................................................................................16
Network Card Configuration .......................................................................................17
GigE Sample Viewer and Filter Driver ............................................................................21
Trouble Shooting .....................................................................................................22
Addendum..................................................................................................................25
GX IO Schematic.......................................................................................................26
User Trigger Circuit Example.......................................................................................27
TV Zoom Lens Connection ..........................................................................................28
Video Iris Connection................................................................................................29
Trigger Timing Diagram .............................................................................................30
Notes on Triggering ..................................................................................................31
Camera Controls ......................................................................................................33

GX1920 Technical Manual Page 3
Legal notice
For customers in the U.S.A.
(FCC Compliance Information)
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications. However there is no guarantee
that interferences will not occur in a particular installation. Operation of this equipment in a residential environment is likely to
cause harmful interference.
You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this
equipment. The shielded interface cable recommended in this manual must be used with this equipment in order to comply with the
limits for a computing device pursuant to Subpart B of Part 15 of FCC Rules.
For customers in Canada
This digital apparatus complies with the Class A limits for radio noise emissions set out in the Radio Interference Regulations.
Pour utilisateurs au Canada
Cet appareil numérique est conforme aux normes classe A pour bruits radioélectriques, spécifiées dans le Règlement sur le
brouillage radioélectrique.
Life support applications
These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can
reasonably be expected to result in personal injury. Allied Vision Technologies customers using or selling these products for use in
such applications do so at their own risk and agree to fully indemnify Allied Vision Technologies for any damages resulting from
such improper use or sale.
Trademarks
Unless stated otherwise, all trademarks appearing in this document are the property of Allied Vision Technologies and are fully
protected by law.
Warranty
The information provided by Allied Vision Technologies is supplied without any guarantees or warranty whatsoever, be it specific or
implicit. Also excluded are all implicit warranties concerning the negotiability, the suitability for specific applications or the non-
breaking of laws and patents. Even if we assume that the information supplied to us is accurate, errors and inaccuracy may still
occur.
Copyright
All text, pictures and graphics are protected by copyright and other laws protecting intellectual property. It is not permitted to copy
or modify them for trade use or transfer, nor may they be used on web sites.
Allied Vision Technologies Canada Inc. 11/2010
All rights reserved.

GX1920 Technical Manual Page 4
Contacting Allied Vision Technologies
•Technical information:
http://www.alliedvisiontec.com
•Support:
[e-mail]
Allied Vision Technologies GmbH (Headquarters)
Taschenweg 2a
07646 Stadtroda, Germany
Tel.: [phone]
Fax.: [phone]
e-mail: [email protected]
Allied Vision Technologies Canada Inc.
101-3750 North Fraser Way
Burnaby, BC, V5J 5E9, Canada
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
Allied Vision Technologies Inc.
38 Washington Street
Newburyport, MA 01950, USA
Toll Free number +1-877-USA-1394
Tel.: [phone]
Fax: [phone]
e-mail: [email protected]

GX1920 Technical Manual Page 5
Introduction
The GX1920 series of cameras are sensitive, 40 frames per second, 2.83 megapixel, Gigabit
Ethernet cameras based on the Sony ICX674 CCD sensor. These cameras support the use of 1 or 2
gigabit Ethernet ports in a LAG configuration for higher bandwidth requirements.
Precautions
READ INSTALLATION GUIDE CAREFULLY.
This document contains specific information which is necessary for the correct operation and
treatment of this product.
DO NOT OPEN THE CAMERA. WARRANTY IS VOID IF CAMERA IS OPENED.
This camera contains sensitive components which can be damaged if handled incorrectly.
KEEP SHIPPING MATERIAL.
Poor packaging of this product can cause damage during shipping.
VERIFY ALL EXTERNAL CONNECTIONS.
Verify all external connections in terms of voltage levels, power requirements, voltage polarity,
and signal integrity prior to powering this device.
CLEANING.
This product can be damaged by some volatile cleaning agents. Avoid cleaning the image sensor
unless absolutely necessary. Please see instructions on sensor cleaning in this document.
DO NOT EXCEED ENVIRONMENTAL SPECIFICATIONS.
See environmental specifications limits in the Specifications section of this document.
Warranty
AVT Canada Inc. provides a 2 year warranty which covers the replacement and repair of all parts
which are found to be defective in the normal use of this product. AVT Canada Inc. will not
warranty parts which have been damaged through the obvious misuse of this product.

GX1920 Technical Manual Page 6
Specifications
Sensor Type SONY ICX674
Sensor Shutter Type Progressive Interline
Image Resolution 1936 x 1456 pixels
Pixel Size 4.54μm x 4.54μm
Optical Forma
t
2
/
3 inch
Lens Moun
t
C-mount with adjustable back focus
Color Sensor Filter Pattern†Bayer
Full Resolution Frame Rate 40.7 fps
I/O 2 isolated inputs, 4 isolated outputs, RS-232 TX/RX,
video auto-iris, motorized iris, focus, and zoom
Power Requirements Less than 5.3W using a single Gige por
t
Less than 6.2W using 2 Gige ports
Digitization 14 Bits
Trigger latency* 1.5μs
Trigger Jitter* ±0.5μs
Operating Temperature 0 to 50 Celsius***
Operating Humidity 20 to 80% non-condensing
Size and Weigh
t
See mechanical diagrams
Hardware Interface Standard IEEE 802.3 1000BASE-T, 100BASE-TX
Software Interface Standard GigE Vision Standard 1.0
Regulator
y
Conforms to CE, FCC, RoHS
†Applies to GX1920C only.
†† Power consumption will increase with reduced ROI imaging, vertical binning, and color formats.
* See Notes on Triggering in the Addendum.
***DUE TO THE SMALL PACKAGING AND HIGH SPEED OF THE G
X
CAMERAS, SPECIAL CARE IS REQUIRED
T
O
MAINTAIN A REASONABLE OPERATING TEMPERATURE. IF THE CAMERA IS TO BE OPERATED IN A WARM
ENVIRONMENT, IT IS SUGGESTED THAT THE CAMERA BE MOUNTED ON A HEAT SINK SUCH AS A METAL BRACKET
AND THAT THERE IS SUFFICIENT AIR FLOW.

GX1920 Technical Manual Page 7
Supported Features
Imaging Modes free-running, external trigger, fixed rate, software trigger
Fixed Rate Control 0.001 fps to maximum frame rate
External Trigger Delay 0 to 60 seconds in 1 microsecond increments
External Trigger Even
t
rising edge, falling edge, any edge, level high, level low
Exposure Time 10 microseconds to 60 seconds in 1 microsecond increments
Gain 0 to 24dB
Region of Interest (ROI) independent x and y control with 1 pixel resolution
Horizontal Binning 1 to 8 pixels
Vertical Binning 1 to 8 rows
Pixel Formats Mono8, Mono16*, Bayer8, Bayer16, Rgb24,
Yuv444, Bgr24, Rgba32, Bgra32, Bayer12Packed
Sync Out Modes trigger ready, trigger input, exposing, readout, imaging,
strobe, GPO
*On monochrome versions only.

GX1920 Technical Manual Page 8
Mechanical
GX C-MOUNT

GX1920 Technical Manual Page 9
Connections
GX CONNECTION DIAGRAM

GX1920 Technical Manual Page 10
GIGABIT ETHERNET PORTS
These ports conform to the IEEE 802.3 1000BASE-T standard for Gigabit Ethernet over copper. It is
recommended that CAT5E or CAT6 compatible cabling and connectors be used for best
performance. Cable lengths up to 100m are supported. For higher bandwidth requirements, both
ports can be used in a link aggregation group (LAG) configuration.
GENERAL PURPOSE IO PORT
PIN FUNCTION
1POWER GROUND
2EXTERNAL POWER
3SYNC OUT 4
4SYNC IN 1
5SYNC OUT 3
6SYNC OUT 1
7USER GROUND
8RS-232 RXD
9RS-232 TXD
10 USER VCC
11 SYNC IN 2
12 SYNC OUT 2
GENERAL PURPOSE IO PORT AS SEEN FROM BACK OF CAMERA
The General Purpose I/O port uses a Hirose HR10A-10R-12PB connector on the camera side. The
mating cable connector is Hirose HR10A-10P-12S. This connector can be purchased from AVT
Canada Inc. or from http://www.digikey.com. An open-ended cable assembly can also be ordered
from AVT Canada Inc. (Part number 02-6033A).
See Addendum for more detail.
POWER GROUND
This is the main ground of the camera circuitry and will be the return path for the external power
source. This connection must be provided to operate the camera. The conductor used for this
connection must be adequate for the current consumption of the camera. For best performance the
connection for POWER GROUND should be physically close to the EXTERNAL POWER connection.
EXTERNAL POWER
This connection provides the main power for the camera. The camera operates from a DC voltage
between 5V to 24V. The current capacity of the power supply can be estimated by dividing the

GX1920 Technical Manual Page 11
camera’s power requirement by the external power voltage. It is also recommended to factor this
by about 50% as follows:
Power supply current capacity = (power specification / external voltage) x 1.5
The conductor used for this connection must be adequate for the current consumption of the
camera. For best performance the connection for EXTERNAL POWER should be physically close to
the POWER GROUND connection.
SYNC INPUTS (1 and 2)
The input signals allow the camera to be synchronized to some external event. These signals are
optically isolated and require the signal common (USER GROUND). The camera can be programmed
to trigger on the rising or falling edge of these signals. The camera can also be programmed to
capture an image at some programmable delay time after the trigger event. These signals can be
driven from 5V to 24V with a current load of 5mA.
VDD+3.3
180R
1/10W
5V TO 24V
IF = 5mA
5V TO 24V
IF = 5mA
PIN 4. SYNC IN 1
180R
1/10W
TO CA MERA
LOGIC
PIN 11. SYNC IN 2
PIN 7. USER GND
DS
G
MMBF4393LT1G
DS
G
MMBF4393LT1G
VCC
GND
HCPL-063L
1
2
3
4
7
6
85

GX1920 Technical Manual Page 12
SYNC OUTPUTS (1 to 4)
These signals are optically isolated and require the user to provide a high voltage level (USER VCC)
and signal common (USER GROUND). USER VCC can be from 5V to 24V. ICC is a function of USER VCC
and load resistor R. An example of the functional circuit is indicated in the following diagram.
5V TO 24V
100K V LOAD
442R
PIN 10. USER VCC
R
VCC-USER
GND-USER
SYNC OUT
USER TRIGGER
CIRCUIT
T4
CA MERA
CIRCUIT
T2
TLP281-4GB
1
2
16
15
T3
IF = 5mA
CA MERA
LOGIC SIGNAL
3.3V CAMERA
LOGIC SIGNAL
SY NC OUT
SIGNAL
T1
Various USER VCC values and load values for the above circuit are indicated in the following table:
USER
VCC
USER
ICC
R
LOAD
V LOAD R POWER
DISSIPATION
T1 T2 T3 T4
5V 8mA 500Ω4.1V 32mW 1.5μs6.5μs2μs14μs
5V 4.8mA 1KΩ4.8V 23mW 1.5μs 5μs17μs 40μs
12V 9.2mA 1.2KΩ11.2V 101mW 1.5μs11.2μs 2μs20μs
12V 4.9mA 2.4KΩ11.8V 58mW 1.5μs8.5μs17μs 55μs
24V 9.5mA 2.4KΩ23.2V 217mW 1.5μs 22μs2μs37μs
24V 5mA 4.8KΩ23.8V 120mW 1.5μs 12μs17μs 105μs

GX1920 Technical Manual Page 13
These signals only function as outputs and can be configured as follows:
Exposing Corresponds to when camera is
integrating light.
Trigger Ready Indicates when the camera will accept a
trigger signal.
Trigger Inpu
t
A relay of the trigger input signal used to
“daisy chain”the trigger signal for
multiple cameras.
Readou
t
Valid when camera is reading out data.
Strobe Programmable pulse based on one of the
above events.
Imaging Valid when camera is exposing or
reading out.
GPO User programmable binary output.
Any of the above signals can be set for active high or active low.
RS-232 RXD and RS-232 TXD
These signals are RS-232 compatible. These signals allow communication from the host system via
the Ethernet port to a peripheral device connected to the camera. These signals are not optically
isolated and reference power ground. If these signals are used in the system, care must be taken
to prevent ground loop problems.
USER GROUND
This connection provides the user ground reference and return path for the isolated sync in and
sync out signals. This connection is necessary if any of the isolated sync signals are to be used. It
is also recommended that this ground connection be physically close to the used sync signals to
prevent parasitic coupling. For example, a good cable design would connect the required signal
on one conductor of a twisted pair and the isolated ground on the second conductor of the same
twisted pair.
USER VCC
This connection provides the power supply for the isolated sync out signals. The voltage
requirement is from 5V to 24V DC. The current requirement for this supply is a function of the
optical isolator collector current and the number of sync outs used in the system. See the SYNC
OUTPUT section for more detail. To prevent parasitic coupling this connection should be physically
close to the used SYNC OUT signals and USER GROUND.

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LENS CONTROL PORT
PIN FUNCTION
1IRIS +
2IRIS -
3FOCUS +
4FOCUS -
5ZOOM +
6ZOOM -
7AUTO IRIS SIGNAL
8GROUND
LENS CONTROL PORT AS SEEN FROM BACK OF CAMERA
This connector provides the signals necessary to control the iris, focus, and zoom of most
commercially available TV Zoom lenses. The camera can be configured to operate lenses with
unipolar voltage requirements of 6V up to 12V or lenses which operate with bipolar voltages from
±6V up to ±12V. This voltage level can be controlled through software. The default voltage will be
set to 6V. The current capacity for each axis is 50mA.
CARE MUST BE TAKEN NOT TO EXCEED THE LENS MANUFACTURERS VOLTAGE SPECIFICATION.
This connector also provides the signals necessary to operate a video auto iris type of lens.
The lens control connector is a Hirose 3260-8S3. The mating cable connector is Hirose 3240-8P-
C(50). This connector can be purchased from AVT Canada Inc. or from http://www.digikey.com.
See Addendum for more detail.

GX1920 Technical Manual Page 15
Cleaning the Sensor
DO NOT CONTACT CLEAN SENSOR UNLESS ABSOLUTELY NECESSARY.
Identifying Debris
Debris on the image sensor or optical components will appear as a darkened area or smudge on the
image that does not move as the camera is moved. Do not confuse this with a pixel defect which
will appear as a distinct point.
Locating Debris
Before attempting to clean the image sensor, it is important to first determine that the problem is
due to debris on the sensor window. To do this you should be viewing a uniform image, such as a
piece of paper, with the camera. Debris will appear as a dark spot or dark region that does not
move as the camera is moved. To determine that the debris is not on the camera lens, rotate the
lens independent of the camera. If the spot moves as the lens moves, then the object is on the
lens -not on the image sensor- and therefore cleaning is not required. If the camera has an IR
filter, then rotate the IR filter. If the object moves then the particle is on the IR filter not the
sensor. If this is the case remove the IR filter carefully using a small flat head screw driver. Clean
both sides of the IR filter using the same techniques as explained below for the sensor window.
DO NOT TOUCH ANY OPTICS WITH FINGERS. OIL FROM FINGERS CAN DAMAGE FRAGILE
OPTICAL COATINGS.
Cleaning with Air
If it is determined that debris is on the sensor window, then remove the camera lens, and blow the
sensor window directly with clean compressed air. If canned air is used, do not shake or tilt the
can prior to blowing the sensor. View a live image with the camera after blowing. If the debris is
still there, repeat this process. Repeat the process a number of times with increased intensity until
it is determined that the particulate cannot be dislodged. If this is the case then proceed to the
contact cleaning technique.
Contact Cleaning
Only use this method as a last resort. Use 99% laboratory quality isopropyl alcohol and clean
cotton swabs. Dampen the swab in the alcohol and gently wipe the sensor in a single stroke. Do
not reuse the same swab. Do not wipe the sensor if the sensor and swab are both dry. You must
wipe the sensor quickly after immersion in the alcohol, or glue from the swab will contaminate the
sensor window. Repeat this process until the debris is gone. If this process fails to remove the
debris, then contact AVT Canada Inc.

GX1920 Technical Manual Page 16
Adjusting the C-mount
THE C-MOUNT IS ADJUSTED AT THE FACTORY AND SHOULD NOT REQUIRE ADJUSTING.
If for some reason, the C-mount requires adjustment, use the following method.
Loosen Locking Ring
Use an adjustable wrench to loosen locking ring. Be careful not to scratch the camera. When the
locking ring is loose, unthread the ring a few turns from the camera face. A wrench suitable for this
procedure can be provided by AVT Canada Inc. (P/N 11-0048A).
Image to Infinity
Use a c-mount compatible lens that allows an infinity focus. Set the lens to infinity and image a
distant object. The distance required will depend on the lens used but typically 30 to 50 feet
should suffice. Make sure the lens is firmly threaded onto the c-mount ring. Rotate the lens and c-
mount ring until the image is focused. Carefully tighten locking ring. Recheck focus.

GX1920 Technical Manual Page 17
Network Card Configuration
Operating GigE Vision GX cameras using multiple network adaptors
The GX series cameras offer two Gigabit Ethernet ports for image data transfer and control. Users can
connect one or both ports on the GX to Ethernet adapter ports on a host computer. Connecting both ports
will increase the available bandwidth to 240 MB/sec, allowing higher frame rates and resolutions than a
single port connection.
GX cameras can be operated in single port and dual port configurations. The dual port approach requires
the host computer to configure a Link Aggregate Group (LAG). A LAG configuration combines multiple
Ethernet ports into a single data channel.
1. Install a dual port network card in the host computer. To achieve full camera performance, you
should use a Gigabit Ethernet card that supports "Jumbo frames" of at least 9KB size.
2. Once installed, open your “Network Connections”(Start -> Control Panel->Network Connections)
and right-click on one of the two network connection corresponding to the card that was just
installed.
3. Select “Properties”from the contextual menu that
appears when you right click the network connection
icon. This will open the properties window.
4. In the properties window, click the “Configure”button. Select the “Advanced”tab. In the
“Property”list make the following changes:
(a) select “Jumbo Frames”and change the value to 9014 bytes or higher.
(b) select “Receive Descriptors”on the same list and change the value to 512
(c) select "Performance Options" and set "Interrupt Moderate Rate" to "Extreme"

GX1920 Technical Manual Page 18
5. Click on “OK”to validate your change (the “Properties”window will close). The Property list will be
different between different types/brands of gigabit Ethernet interface cards. If "Jumbo Frames"
does not appear in this list, then your card probably does not support it. If your card does not
support Jumbo Frames, then your CPU usage will be higher.
6. Re-open the "Properties" of the PRO/1000 GT adapter by right-clicking the Local Area Connection
"Intel®PRO/1000 GT" network connection icon in the Network Connections window and select the
"Advanced" tab at the top of the Properties dialog.
7. In the "Windows Firewall" section, select "Settings". In the
Settings dialog choose "Off" to turn off the Windows firewall.
The camera will not work if the firewall is active. If you installed
the AVT/Prosilica GigE filter driver, this step is not required.
8. Perform Steps 1 –8 for the other Ethernet adapter port that will
be dedicated to the GX camera network.
9. The next section will provide instructions for configuring the Link Aggregate Group (LAG) to
combine the two ports dedicated to the GX network.
Open your “Network Connections”(Start -> Control Panel->Network Connections) and right-click
on one of the two network connection corresponding to the card that was just installed. Select
“Properties”from the contextual menu that appears when you right click the network connection
icon. This will open the properties window. In the properties window, click on “Configure”button
in order to create a Link Aggregate Group (LAG) between the two ports.
10. Select the “Teaming”tab (analogous to LAG), enable “Team
this adapter with other adapters and click on the “New Team”
button.
11. Specify a name for the Team (Link Aggregate Group). This
should be something that will distinguish this adapter from
others in your system. Click “Next”to continue.

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12. Select the two Ethernet ports to which the GX
camera will be connected. These ports will form our
LAG or TEAM. Click “Next”to continue.
13. Choose “Static Link Aggregation”. Click “Next”to
continue.
14. The LAG group will now be configured. You may be asked
to permit the “AVT_Prosilica GigE Vision Filter Miniport”
installation on the new LAG adapter. Click “Continue
Anyway”.
15. Once completed the properties of the TEAM (LAG) that has just been created will appear. A new
Network Connections Icon corresponding to the LAG group is created. You have now completed
the Link Aggregate Group configuration.

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16. Reboot the system and install GigE Sample Viewer.