Specifications

CV-A10 CL and CV-A70 CL
5.3. Input and output circuits
In the following schematic diagrams the input and output circuits for video and timing signals
are shown.
5.3.1. Iris video output
This signal can be used for lens iris control
GND
75
Video
Output
10k
GND
75
Video
Output
10k
in Continuous and Reset Continuous Trigger mode.
The signal is taken from the CCD sensor output
before the gain circuit. The video output is without
sync. The signal is 0.7 Vpp from <400 Ω ac coupled.
Do not use auto shutter (CCD iris) when auto iris lens is used.
Fig. 4. Video output.
5.3.2. HD and VD input/RXD TXD
Pin #6 and #7 on the 12 pin connector is used for
+5V
47p
33k
TTL
1k2
GND
10µ
4k7
RxD/TxD
VD/HD input
+
75
SW302
To RxD/TxD
SW301
+5V
47p
33k
TTL
1k2
GND
10µ
4k7
RxD/TxD
VD/HD input
+
75
SW302
To RxD/TxD
SW301
HD/VD input or for the RS232C interface.
If the camera control is done via Camera Link,
the pins can be used for input of external HD and VD.
SW301.2: ON for ext. HD in. OFF for RS232C RxD.
SW301.3: ON for ext. VD in. OFF for RS232C TxD.
SW302.3: ON for HD 75Ω termination. OFF forTTL.
SW302.4: ON for VD 75Ω termination. OFF forTTL.
Fig. 5. HD/VD input, RS-232C
5.3.3. Trigger input
With TI=1, the trigger input is on pin #10 12 pin
connector. The input 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.
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75Ω
Trig input
pin #10
SW302.1
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75Ω
Trig input
pin #10
SW302.1
The trigger polarity can be changed by TP=1.
Trigger input level 4 V ±2 V. It can be terminated
by SW302.1: ON for 75
Ω . OFF for TTL.
The trigger inputs can be changed to
Camera Link. (TI=0 for CL)
Fig. 6. Trigger input.
5.3.4. XEEN output
GND
+5V
2
2
10k
2k2
75
TTL
100
#9/12
XEEN output
GND
+5V
2
2
10k
2k2
75
TTL
100
#9/12
XEEN output
On pin #9 on 12 pin HR connector XEEN is found.
The output circuit is 75 Ω complementary
emitter follower. It will deliver a full 5 volt signal.
Output level ≥4 V from 75Ω. (No termination).
EEN is also found in Camera Link.
Fig. 7. EEN output
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