( 5 ) RR (Reset restart)
Input of an external reset-restart signal (VD terminal) permits one screen of information to be output at an arbitrary timing.
(5. 1) Long Term Exposure
When the camera is used and sufficient sensitivity cannot be obtained for the reset-restart function under normal operating conditions, or when observation of the trail of a moving subject is desired, the exposure time can be extended to allow high-sensitivity images to be obtained. To achieve this, please input from an external source a VD signal that has an expanded VD pulse and VD pulse interval.
(5. 2) Input Timing Chart Example
External HD IN
External VD IN | | | | | | | | | | | | | |
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| | | | | | | V reset | | | V reset |
| | | | | | | About 1H | | | About 1H |
(Internal VD) | | | | | | | | | | | | | | |
| | | | Exposure period | | | | Exposure period |
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Exposure period | | | | |
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VIDEO OUT
VIDEO INDEX
External VD interval: more than 1V