CV-M2CL and CV-M8CL
5.4. Input and Output Circuits
5.4.1. Monitor video output
On the BNC connector an analog video signal with
GND
75
Video
Output
GND
75
Video
Output
0.3Vpp
0.7Vpp
+0.4V
75
Ω
termination
0.3Vpp
0.7Vpp
+0.4V
75
Ω
termination
sync is found if OS=2. The signal can be used
for focus and field of view adjustments.
CCIR if MN=1. (50 fps, 17.734 kHz, 290 active lines.)
EIA if MN=0. (60 fps, 17.734 kHz, 240 active lines.)
It is for single channel normal (TR=0) operation only.
Shutter speed <262 LVAL (CCIR). <262 LVAL (EIA).
Video is monochrome composite 1Vpp with 75
Ω
termination.
For M8 the signal level is affected by the Bayer filter.
The signal is shown is also on CL. (Not for trigger modes.)
5.4.2. Iris video output
Iris video
#4/12
+4V
4k7
75
-4V
Iris video
#4/12
+4V
4k7
75
-4V
+4V
4k7
75
-4V
-0.6V
Black
level
0.5Vpp
No termination
-0.6V
Black
level
0.5Vpp
-0.6V
Black
level
0.5Vpp
No termination
The analog 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. Iris video is added from both channels.
Black level is –0.6 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
The trigger inputs on pin #10 12 pin Hirose
connector is AC coupled. To allow a long pulse
width, the input circuit is a flip flop, which is
toggled by the negative or positive differentiated
spikes caused by the falling or rising trigger
edges.
+5V
GND
15k
TTL
1k
GND
100n
1k
68k
100k
1n
1k
Trig input pin #10
+5V
GND
15k
TTL
1k
GND
100n
1k
68k
100k
1n
1k
Trig input pin #10
The trigger polarity can be changed.
Trigger input level 4 V
±
2 V.
The trigger-input impedance is 1 k
Ω
.
The trigger inputs can be changed to
Camera Link input.
Fig. 5. Trigger input.
GND
+5V
2
2
10k
2k2
75
TTL
100
#9/12
GND
+5V
2
2
10k
2k2
75
TTL
100
#9/12
5.4.4. EEN output
On pin #9 on 12 pin Hirose connector EEN is found.
The output circuit is 75
Ω
complementary emitter
followers. It will deliver a full 5 volt signal.
Output level
≥
4 V from 75
Ω
. (No termination).
EEN output is also on Camera Link.
Fig. 6. EEN output
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