BM-500
CL / BB-500
CL
- 8 -
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75
Trig input
pin #10
SW302.1
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75
Trig input
pin #10
SW302.1
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75
Trig input
pin #10
SW302.1
Fig. 5. Trigger input.
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 in Continuous mode.
The signal for iris video output is taken from the video signal after
the gain control. The signal is 0.7 Vpp (without sync) from 75
without termination.
5.3.2.
Trigger input
An external trigger input can be applied to pin 10 of 12-
pin Hirose connector (when the command TI=1 has been
set). The input is AC coupled. To allow long pulses the
input circuit is designed as a flip-flop circuit. The leading
and trailing edges of the trigger pulse activate the circuit.
The trigger polarity can be changed by TP=1.
Trigger input level 4 V
2 V.
Trigger can also be applied through the Camera Link
connector, when the command TI=0 has been sent.
5.3.3.
XEEN output
XEEN is on pin 9 on 12-pin Hirose connector.
The output uses either a complementary emitter
follower circuit or open-collector. The output of the
complementary emitter follower circuit is
3 V. (No
termination)
When the open corrector output is used, the maximum
current is 120mA. However, if the current is more than
50mA, use thicker cable for connecting pins #8 and #9.
If the narrower cable is used, it might happen the
malfunction due to the resistance of the cable.
The output can be selected by switch SW800 located
inside the camera (rear board).
EEN is also found in Camera Link.
SW 800
12P Pin #9
XEEN OUT
+5V
TTL
100
2K2
10K
2
2
75
GND
Open Collector
Fig. 6. XEEN output
Fig. 4. Iris video
DA
C
1μ
1K
2K2
0.1μ
+5V
IRIS Video Out