JAI CV-M2 User Manual
Digital Monochrome 2 Megapixel
Progressive Scan Camera
CV-M2
Operation Manual
Camera: Revision A
Manual: Version 1.0
M2ManualJul22.doc
JPT 22-07-03
CV-M2
Table of Contents
1. General ........................................................................................................2
2. Standard Composition ......................................................................................2
3. Main Features ................................................................................................2
4. Locations and Functions ................................................................................... 3
5. Pin Assignment............................................................................................... 4
5.1. 12-pin Multi-connector (DC-IN/Trigger) ....................................................................... 4
5.2. BNC connector for analogue monitor video output.......................................................... 4
5.3. Digital Output Connector for Camera Link.................................................................... 4
5.4. Input and Output Circuits........................................................................................ 5
5.4.1. Monitor video output ...................................................................................... 5
5.4.2. Iris video output............................................................................................ 5
5.4.3. Trigger input................................................................................................ 5
5.4.4. EEN output .................................................................................................. 5
5.4.5. Camera Link interface .................................................................................... 6
6. Functions and Operations .................................................................................7
6.1. Basic functions .................................................................................................... 7
6.1.1. Dual video output.......................................................................................... 7
6.1.2. Burst trigger ................................................................................................ 7
6.1.3. Restart continuous trigger mode ........................................................................ 8
6.1.4. PIV mode .................................................................................................... 8
6.1.5. Sensor Gate Control ....................................................................................... 9
6.1.6. Digital video out allocation .............................................................................10
6.1.7. Knee function..............................................................................................10
6.2. Sensor layout and timing. ......................................................................................11
6.2.1. CCD sensor layout.........................................................................................11
6.2.2. Vertical timing ............................................................................................11
6.2.3. Horizontal timing single channel .......................................................................12
6.2.4. Horizontal timing details single channel ..............................................................12
6.2.5. Horizontal timing dual channel.........................................................................13
6.2.6. Horizontal timing details dual channel................................................................13
6.2.7. LVAL synchronous accumulation........................................................................14
6.2.8. LVAL a-synchronous accumulation .....................................................................15
6.2.9. Partial scanning vertical timing ........................................................................16
6.3. Input/Output of Timing Signals ................................................................................17
6.3.1. Input of Timing Signals...................................................................................17
6.3.2. Output of Timing Signals.................................................................................17
6.4. Trigger Modes.....................................................................................................17
6.4.1. Continuous Operation (Non triggered) ................................................................18
6.4.2. Edge Pre-select Mode ....................................................................................19
6.4.3. Restart Continuous Trigger mode ......................................................................20
6.4.4. Pulse Width Control Mode ...............................................................................21
6.4.5. Burst Trigger mode .......................................................................................22
6.4.6. PIV mode. ..................................................................................................23
6.4.7. Sensor Gate Control ......................................................................................24
6.5. Other Functions. .................................................................................................25
7. Configuring the Camera.................................................................................. 26
7.1. Mode setting SW1 on rear ......................................................................................26
7.2. RS-232C/Camera Link switch...................................................................................26
7.3. Internal Switch ...................................................................................................26
7.4. RS-232C control ..................................................................................................27
7.5. CV-M2 command list.............................................................................................28
7.6. Camera Control Tool for CV-M2................................................................................29
8. External Appearance and Dimensions ................................................................ 30
9. Specifications .............................................................................................. 30
9.1. Spectral sensitivity ..............................................................................................30
9.2. Specification table...............................................................................................31
10. Appendix .................................................................................................. 32
11. Users Record.............................................................................................. 33
- 1 -
CV-M2
1. General
The CV-M2 is a digital 2 megapixel camera designed for automated imaging and ITS (Intelligent
Traffic Systems) applications, featuring high resolution and high speed within a uniform and
compact housing.
The high-speed shutter function, asynchronous random trigger mode and partial scan mode
allows the camera to capture high quality images of fast moving objects with a high frame rate.
Functions like burst trigger, reset continuous trigger mode, analog iris video output, knee and
gamma function for single channel makes the camera suitable for intelligent traffic systems.
The CV-M2 features the Camera Link standardized multiplexed signal output interface.
The latest version of this manual can be downloaded from: www.jai.com
The latest version of Camera Control Tool for CV-M2 can be downloaded from: www.jai.com
For camera revision history, please contact your local JAI distributor.
2. Standard Composition
The standard camera composition consists of the camera main body and tripod mount plate.
3. Main Features
• Digital 1” monochrome 2 megapixel progressive scan CCD camera
• 1600 (h) x 1200 (v) effective 7.4 µm square pixels
• 10 or 8 bit video output as Camera Link
• 17 full frames/second for single channel video readout
• 30 frames/second with dual channel video readout
• One push black level and gain calibrations for dual channel readout
• Higher frame rates with 1/2, 1/4 and 1/8 partial scanning
• Programable partial scanning with 1 line interval for start position and scanned lines
• Edge pre-select and pulse width controlled external trigger modes
• Shutter speed 1/17 (off) to 1/14,000 second in 10 steps
• Programable exposure by edge pre-select shutter 1.5H to 1216.5H with 1 H interval
• Burst trigger for 5 different edge pre-selected exposures in sequence
• Analogue video output for iris control
• Restart continuous trigger mode (RCT) makes it ideal for traffic control (ITS)
• Analog composite video output for CCIR/EIA monitor
• PIV mode (Particle Image Velocimetry) for 2 short exposures with very short interval
• Short ASCII commands for fast mode setup via serial port
• Setup by Windows 98/NT/Win2000 via RS-232C or Camera Link
- 2 -
4. Locations and Functions
1. CCD sensor
2. Lens mount (C-mount)
3. Rear panel with SW1
4. Digital output connector (Camera Link)
5. DC in/Trigger in/RS-232C connector
6. BNC connector for monitor video output
7. Gain potentiometer
8. Mounting holes M3. (8x)
CV-M2
7 6 5
3 4 2 1
8
Fig. 1. Locations
- 3 -
CV-M2
5. Pin Assignment
5.1. 12-pin Multi-connector (DC-IN/Trigger)
Type: HR10A-10R-12PB-01
(Hirose) male.
(Seen from rear of camera.)
9
1
2
3
4
8
10
11
7
12
6
5
Fig. 2. 12-pin connector.
Pin no. Signal Remarks
1 GND
2 +12 V DC input
3 GND
4 Iris Video output
5 GND
6 RXD in
7 TXD out
8 GND
9 EEN out
10 Trigger/SG input
11 Factory use
12 GND
*) Refer to 5.4.2. for Iris video output. SG = Sensor Gate Control.
Analogue video for iris control in
continuous mode and RCT mode. *)
RS 232C. Or via Camera Link
By internal switch HR/CL (Refer to 7.2)
Or via Camera Link
TI=1. (Or via Camera Link if TI=0 )
SG=0 trigger input. SG=1 sensor gate contr.
For factory test
5.2. BNC connector for analogue monitor video output
On the BNC connector an analogue video signal (CCIR or EIA) for monitoring is found if OS=2. The
signal can be viewed on a standard monitor as 50 FPS/15.734 kHz 290 lines if MN=1, or 60
FPS/15.734 kHz 240 lines if MN=0. It is non-interlaced and for single channel only. The image
covers the full format, but the resolution is much lower than the digital video output.
5.3. Digital Output Connector for Camera Link
13
26
Fig. 3. Camera Link connector
The digital output signals follow the Camera Link standardized multiplexed signal output
interface. The output driver is NS type DS90CR285, and the receiver is NS type DS90CR286.
The following signals are found on the Digital Output Connector:
SerTC RXD serial data to camera
SerTFG TXD serial data to frame grabber
CC1 Trigger/Sensor Gate input
CC2 Factory use
X0 to X3 Camera Link multiplexed data out
Xclk Camera Link clock. Used as pixel clock.
In the Channel Link X0 to X3 multiplexed signals the following signals are encoded.
D0 – D9 2 x 10 bit video data out for right and left channel.
LVAL Line VALid. Video line data is valid.
FVAL Frame VALid. Video frame data is valid.
DVAL Data VALid. Effective video pixel data is valid
EEN Exposure ENable.
LVAL, FVAL, DVAL polarity is positive. EEN is negative. TRIG is negative as factory setting. TRIG
polarity can be changed by TP. For Camera Link interface principle diagram please check Fig. 7.
1
Type: 26 pin MRD connector
3M 10226-1A10JL
14
(Int. switch HR/CL. Refer to 7.2)
(Int. switch HR/CL. Refer to 7.2)
(TI=0 for CL. SG=1 for Sensor Gate)
(Not specified by Camera Link).
- 4 -
CV-M2
5.4. Input and Output Circuits
5.4.1. Monitor video output
On the BNC connector an analogue video signal for
set-up is found if OS=2. The signal can be used
for focus and field of view adjust.
CCIR if MN=1. (50 fps, 17.734 kHz, 290 active lines.)
EIA if MN=0. (60 fps, 17.734 kHz, 262 active lines.)
It is for single channel normal (TR=0) operation only.
Shutter speed <313 LVAL (CCIR). <263 LVAL (EIA).
Video is composite 1Vpp from a 75 Ω source.
5.4.2. Iris video output
The analogue video output without composite
sync on pin #4 12 pin Hirose connector is a 75 Ω
DC coupled circuit. It can be used for iris
control if the camera is in normal continuous
mode or Reset Continuous Trigger mode. It is
L
L
1µ2
1µ2
68p
68p
75
75
NC
NC
Video
Video
Output
Output
#4/12
#4/12
GND
GND
Black
Black
level
level
GND
GND
500 mV
500 mV
for single channel only.
Black level is 0.5 volt without termination.
Important note on using this signal for iris control.
The signal for iris video output is taken from the video signal after the gain control. If it is used
for auto iris control, output video level can only be adjusted on the lens level adjust.
Fig. 4. Video output.
5.4.3. Trigger input
+5V
The trigger inputs on pin #10 12 pin Hirose
connector is AC coupled. To allow a long
Trig input pin #10
Trig input pin #10
15k
15k
+5V
pulse width, the input circuit is a flip flop,
which is toggled by the negative or positive
differentiated spikes caused by the falling
100n
100n
1k
1k
68k
68k
100k
100k
TTL
TTL
or rising trigger edges.
10k
GND
GND
10k
1n
1n
1k
1k
GND
GND
The trigger polarity can be changed.
Trigger input level 4 V ±2 V.
The trigger-input impedance is 10 kΩ.
The trigger inputs can be changed to
Camera Link input.
Fig. 5. Trigger input.
+5V
+5V
5.4.4. EEN output
On pin #9 on 12 pin Hirose connector EEN The
output circuit is 75 Ω complementary emitter
followers. It will deliver a full 5 volt signal.
Output level ≥4 V from 75Ω. (No termination).
EEN output is also on Camera Link.
Fig. 6. EEN output
- 5 -
TTL
TTL
100
100
2k2
2k2
10k
10k
75
75
2
2
2
2
#9/12
#9/12
GND
GND
CV-M2
5.4.5. Camera Link interface
The video output is Camera Link, where the 2 channels with 10 or 8 bit video are placed in a
base configuration. The digital output signals follow the Camera Link standardized multiplexed
signal output interface. The output driver is NS type DS90CR285, and the receiver is NS type
DS90CR286.
The data bits from the digital video, FVAL, LVAL, DVAL and EEN are multiplexed into the twisted
pairs, which are a part of the Camera Link. Trigger signals and the serial camera control are
feed directly through its own pairs. The trigger input can also be TTL on the 12 pin connector.
(TI=0 for CL. TI=1 for 12 pin). The serial camera control can be switches between the 12 pin
connector or CL by an internal switch HR/CL. Refer to 7.2
The 26 pin MDR connector pin assignment follows the Camera Link base configuration.
For a detailed description of Camera Link specifications, please refer to the Camera Link
standard specifications found on www.jai.com
Camera Signals
Camera Signals
8bit 10bit
8bit 10bit
L2 L0
L2 L0
L3 L1
L3 L1
L4 L2
L4 L2
L5 L3
L5 L3
L6 L4
L6 L4
L7 L5
L7 L5
L8 L6
L8 L6
L9 L7
L9 L7
R2 L8
R2 L8
R3 L9
R3 L9
R4 NC
R4 NC
R5 NC
R5 NC
R6 R8
R6 R8
R7 R9
R7 R9
R8 NC
R8 NC
R9 NC
R9 NC
NC R0
NC R0
NC R1
NC R1
NC R2
NC R2
NC R3
NC R3
NC R4
NC R4
NC R5
NC R5
NC R6
NC R6
NC R5
NC R5
LVAL
LVAL
FVAL
FVAL
DVAL
DVAL
EEN
EEN
Pclk
Pclk
TXD out
TXD out
RXD in
RXD in
Ext. trig 1 in
Ext. trig 1 in
Ext. Trig 2 in
Ext. Trig 2 in
Ground
Ground
CV-M2 Camera
CV-M2 Camera
Camera Link
Camera Link
Pin
Pin
A 0 Tx0
A 0 Tx0
A1 Tx1
A1 Tx1
A2 Tx2
A2 Tx2
A3 Tx3
A3 Tx3
A4 Tx4
A4 Tx4
A5 Tx6
A5 Tx6
A 6 Tx27
A 6 Tx27
A 7 Tx5
A 7 Tx5
B 0 Tx7
B 0 Tx7
B 1 Tx8
B 1 Tx8
B 2 Tx9
B 2 Tx9
B 3 Tx12
B 3 Tx12
B 4 Tx13
B 4 Tx13
B 5 Tx14
B 5 Tx14
B 6 Tx10
B 6 Tx10
B 7 Tx11
B 7 Tx11
C 0 Tx15
C 0 Tx15
C 1 Tx18
C 1 Tx18
C 2 Tx19
C 2 Tx19
C 3 Tx20
C 3 Tx20
C 4 Tx21
C 4 Tx21
C 5 Tx22
C 5 Tx22
C 6 TX16
C 6 TX16
C 7 Tx17
C 7 Tx17
Txclk
Txclk
Tx24
Tx24
Tx25
Tx25
Tx26
Tx26
Tx23
Tx23
4 x
4 x
7-1
7-1
MUX
MUX
Camera Link Cable
Camera Link Cable
Connector pin
Connector pin
15
15
2
2
X0
X0
16
16
X1
X1
3
3
17
17
X2
X2
4
4
19
19
X3
X3
6
6
18
18
Xclk
Xclk
5
5
21
21
SerTFG
SerTFG
8
8
7
7
SerTC
SerTC
20
20
22
22
CC1
CC1
9
9
10
10
CC2
CC2
23
23
24
24
CC3
CC3
11
11
12
12
CC4
CC4
25
25
1
1
Sheilds
Sheilds
14
14
13
13
26
26
TxCLK
TxOUT3
TxOUT2
TxOUT1
TxOUT0
Fig. 7. Principle diagram for Camera Link base configuration interface
Signal
Signal
Sheilds
Sheilds
Pair 1
Pair 1
Pair 2
Pair 2
Pair 3
Pair 3
Pair 5
Pair 5
Pair 4
Pair 4
Pair 7
Pair 7
Pair 6
Pair 6
Pair 8
Pair 8
Pair 9
Pair 9
Pair 10
Pair 10
Pair 11
Pair 11
A7
C3
B2
A1
- 6 -
To
To
Frame
Frame
Grabber
Grabber
Camera Link bit allocation
C7
EEN
A6
FVAL
DVAL
C2
C0
C1
B1
A5
B0
A0
Time slots in Camera Link
Port/Signal 8bit 10bit Pin No.
Port A0 L2 L0 Tx0
Port A1 L3 L1 Tx1
Port A2 L4 L2 Tx2
Port A3 L5 L3 Tx3
Port A4 L6 L4 Tx4
Port A5 L7 L5 Tx6
Port A6 L8 L6 Tx27
Port A7 L9 L7 Tx5
Port B0 R2 L8 Tx7
Port B1 R3 L9 Tx8
Port B2 R4 NC Tx9
Port B3 R5 NC Tx12
Port B4 R6 R8 Tx13
Port B5 R7 R9 Tx14
Port B6 R8 NC Tx10
Port B7 R9 NC Tx11
Port C0 NC R0 Tx15
Port C1 NC R1 Tx18
Port C2 NC R2 Tx19
Port C3 NC R3 Tx20
Port C4 NC R4 Tx21
Port C5 NC R5 Tx22
Port C6 NC R6 Tx16
Port C7 NC R7 Tx17
LVAL Tx24
FVAL Tx25
DVAL Tx26
EEN Tx23
1 pixel cycl e
C6
LVAL
B5
A4
B6
B7
C4
C5
B3
B4
A2
A3
A6
A7
C2
C3
B1
B2
A0
A1
CV-M2
6. Functions and Operations
In the following the format shown in “7.5. CV-M2 command list” are used for function
commands and parameters.
6.1. Basic functions
The M2 camera is a progressive scan camera with 10 or 8 bit video output in single or dual
channel Camera Link. On a BNC connector a standard composite video output CCIR or EIA for
monitor use is found. The image covers the full format, but the resolution is much lower than
the digital video output.
An iris video signal can be used for lens iris control if the camera is in continuous mode or Reset
Continuous Trigger mode.
A knee function (and gamma for single channel) makes it possible to cover high contrast scenes.
The CV-M2 camera has 1/2, 1/4 or 1/8 partial scanning. Programmable partial scan, where the
start line and the number of lines can be selected in 1line increments is also available.
There are 5 trigger modes. Normal continuous, reset continuous trigger, edge pre-select, pulse
width control, edge pre-select burst trigger and PIV trigger. (PIV, Particle Image Velocimety).
The Sensor Gate Control can be used in normal continuous mode together with strobe flash.
The accumulation can be LVAL synchronous or LVAL a-synchronous.
In the following some of the functions are shown in details.
6.1.1. Dual video output
The video read out through Camera Link can be via a single or via double channels. (OS=0 for
single channel, OS=1 for dual channel.) If dual video outputs are used, the frame grabber PC
should reconstruct the image frame from the 2 half images.
Image
Image
The mirrord half
The two half images
The two half images
are stored in separate
are stored in separate
memory locations
memory locations
Camera Link
Camera Link
Interface
Interface
2 x 10 bit
2 x 10 bit
RL
RL
A/D
A/D
A/D
A/D
CV-M2 Camera Frame Grabber
CV-M2 Camera Frame Grabber
R
R
L
L
The mirrord half
image R is reversed
image R is reversed
and stiched together
and stiched together
.
.
with the half image L
with the half image L
Reconstructed
Reconstructed
image on display
image on display
Display
Display
Fig. 8. Dual channel read out
6.1.2. Burst trigger
With the burst trigger function TR=4, five previous set edge pre-selected programmable
exposures can be done with a single trigger pulse. The five shutter times can be set with BSH1
through BSH5. (1H through 1216H.)
Trigger
Trigger
Burst
Burst
Shutter
Shutter
Exposure
Exposure
Video out
Video out
Frame
Frame
1 2345
1 2345
1 234 5
1 234 5
Fig. 9. Burst trigger
- 7 -
CV-M2
6.1.3. Restart continuous trigger mode
The RCT mode makes it possible to use a lens with video controlled iris for intelligent traffic
surveillance applications. TR=2. The camera is running continuously, and the iris is controlled
from the iris video output. When a trigger pulse is applied, the scanning is reset and restarted,
the previous signal is dumped with a fast dump read out, and the new triggered exposure is
started. This fast dump read out has the same effect as “smearless read out”. Smear over
highlighted areas are reduced for the triggered frame.
Trigger
Trigger
SG
SG
Exposure
Exposure
Dump
Dump
Read out
Read out
Video out
Video out
Continuous video out Continuous video outTriggered
Continuous video out Continuous video outTriggered
Fig. 10. Restart continuous trigger mode
Frame
Frame
6.1.4. PIV mode
The Particle Image Velocimetry mode can be used in applications where 2 images should be
taken with a very short time interval. TR=5. It can only be used with strobe flash or lasers as
illumination. The first accumulation time is 4 µsec. The second is as long as the time for a full
frame.
Trigger
Trigger
Trigger
SG
SG
SG
Exposure
Exposure
Exposure
Video out
Video out
Video out
Trigger
Trigger
Trigger
Exposure 1
Exposure 1
Exposure 1
Exposure 2
Exposure 2
Exposure 2
Expanded view
Expanded view
Expanded view
First frame out Second frame out
First frame out Second frame out
First frame out Second frame out
1.5µsec.
1.5µsec.
4 µsec.
4 µsec.
4 µsec.
4 µsec.
4 µsec.
4 µsec.
1.5µsec.
EEN
EEN
EEN
1. Flash 2. flash
1. Flash 2. flash
1. Flash 2. flash
Fig. 11. PIV mode
- 8 -
CV-M2
6.1.5. Sensor Gate Control
This function is for applications where a strobe flash is the only illumination, and where the
exact time for the strobe firing is not known. The time window for the strobe firing can be up to
several frames. The resulting video read out can also be delayed by this function. It makes the
synchronization of the frame grabber more flexible.
The Sensor Gate Control signal will inhibit the internal SG signal so the accumulation can
continue. The sensor gate control signal can be synchronized by the FVAL signal.
This function will only work in normal continuous mode. TR=0. The function is on if SG=1.
The SG signal is an internal signal, which is low when the accumulated charge on the photo
diode array is transferred to the vertical ccd registers for read out.
When the Sensor Gate Control input is high, the internal SG pulse is inhibited, and the signal
accumulation on the photo diode array can take place. When the strobe flash is fired, the Sensor
Gate Control signal can be low. The resulting video is then read out after the first FVAL (or SG),
following the falling edge of Sensor Gate Control signal.
FVAL
FVAL
SG
SG
Sensor Gate
Sensor Gate
Control
Control
SG inhibit
SG inhibit
Strobe Flash
Strobe Flash
Video out
Video out
Strobe can be fired here
Strobe can be fired here
Fig. 12. Sensor Gate Control
- 9 -
CV-M2
6.1.6. Digital video out allocation
The set-up and the relations between the analog and digital video are shown in fig. 13.
Digital
[LSB]
[LSB]
1023
1023
890
890
Digital
video out
video out
100%
100%
level
level
32
32
Black level
Black level
0
0
0 25 700 800
0 25 700 800
Fig. 13. Digital video bit allocation
White
White
clip level
clip level
Analog
Analog
video out
video out
[mV]
[mV]
6.1.7. Knee function.
The knee functions can compress the signals in the highlighted areas. The slope over the knee
point is only 20%. The Knee point can be adjusted from 712 to 1023. With the knee at 890, the
camera can reproduce scene highlight up to 175%. The image contrast is reduced to 20% for
scene luminance higher than the knee point.
This function can be used in applications where the scene brightness is divided in an area in
shadow, and another in bright sunshine.
[LSB]
[LSB]
1023
1023
890
890
712
712
32
32
video output
video output
0
0
0
0
Digital
Black level
Black level
Knee min.
Knee min.
lope
lope
S
S
10
10
%
%
0
0
Knee max.
Knee max.
luminance
luminance
100% video
100% video
o
o
l
l
S
S
Scene
Scene
%
%
0
0
2
2
e
e
p
p
175%
175%
Digital
Fig. 14. Knee function
- 10 -
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