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Setting the shutter speed using DIP switches
N HD/VD input
• Continuous HD input/Single VD input
External trigger shutter operation
1
2 µ s to 250 ms
Trigger*
1
Exposure time (Te)*
External HD*
1
External VD*
1
(Single VD)
T: T=10 ms to 85 ms*
Video out
*1 This is an external input signal. Make sure to input
both HD and VD signals in this case. Input the
signal so that the VD phase aligns with the HD
falling edge.
*2 The exposure time (Te) is determined by the
setting of the DIP switches.
For details, see page 17.
*3 Normal operation is resumed when the trigger
pulse width is 1/3 s or more. The trigger falling
edge restores external trigger shutter operation. At
this time, the 50 ms after the falling edge of the
trigger pulse is an external trigger input inhibition
area. There is no guarantee of operation for any
trigger input in this period.
XC-56BB
2
4
1
*4 Input the external VD within the period of 10 ms to
Make sure that the trigger signal and the VD signal
make up a pair.
An image is not output correctly when the next trigger
is input before the image for the previous trigger has
been output.
Mode transition state
Normal operation*
3
3
Trigger pulse width*
85 ms after the trigger rising edge (1 and 2 in
the figure). There is no guarantee of operation for
any other input (the output level of the video signal
will vary, and the S/N ratio will be degraded). If an
invalid signal is input, the input is changed to a
valid signal, and after several V signals, normal
operation resumes.
Note
Mode Settings
External input
External trigger
inhibition area
shutter operation
(50 ms)
2
Exposure time
(Te)*
2
Min.10 ms
2
24
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