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Setting the shutter speed using DIP switches

HD/VD input

• Continuous VD input

100 µ sec to 250 msec

Trigger*

Exposure time (Te)*

External HD*

External VD*

(Continuous

VD)

T: T=under 10 msec*

Video out

WEN

*1 This is an external input signal. The period of a

continuous VD signal is prescribed as one field.

Make sure to input both HD and VD signals.

*2 The exposure time (Te) is determined by the

setting of DIP switches.

For details, see page 12.

*3 Normal operation is resumed when the trigger

pulse width is 1/3 sec or more. The trigger falling

edge restores external trigger shutter operation. At

this time, the 50 msec 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-ST51/ST51CE

XC-ST50/ST50CE

XC-ST30/ST30CE

External trigger shutter operation

Exposure time (Te)*

T: T=10 msec or more*

250 H (EIA)

293 H (CCIR)

Normal

operation*

Trigger pulse width*

*4 An image is output when an external VD signal

falls 10 msec or more after a trigger pulse rises (2

and 3 in the figure). If the period from the trigger

rising edge to the external VD falling edge (T in

the figure) is under 10 msec, it is not defined

whether the image is output for the external VD

falling edge or the image is output for the next

external VD falling edge. (1 in the figure shows

that the image is output for the next external VD).

In this case, see WEN since the image and WEN

make up a pair.

Note

An image is not output correctly when the next trigger

is input before the image for the previous trigger has

been output.

Mode Settings

Mode transition state

External input

External trigger

inhibition area

shutter operation

(50 msec)

Exposure time

(Te)*

T: T=10 msec or

more*