Toshiba IK - TU51CU - Manual (Page 43)

7. 5 EXT TRIG (External trigger)
Charge begins to accumulate after the trigger Input operation (In the RS232C mode, by RS232C command
Input, In other modes, by trigger pulse (TRIGGER) input to the DC IN/SYNC terminal) or trigger signal input
to the DIGITAL terminal and 1 field or 1 frame Images are output. There are four modes: 1 PULSE SNR,
1 PULSE SR, 2PULSE and RS232C.
The DC IN/SYNC terminal trigger input and index output interface are as shown below.
5V
150Q
(CMOS out) —------------------[ index out I
(1) 1 PULSE SNRC1 Pulse Svnc Non Reset)
Charge begins to accumulate after the trigger input operation to the DC IN/SYNC terminal or trigger signal
input (LVDS) to the DIGITAL terminal and 1 field images are output.
The exposure time Is set to 0.06 to 16 ms on the menu.
Trigger pulse level : (Low Level): Less than 0.5V , (High Level): 3.4V to 5V
(DC IN/SYNC terminal)
Trigger pulse fetch timing
Trigger pulse width
Trigger pulse Interval
Rising edge / Falling edge selectable
More than 2 // s
More than 50ms
TRIGGER
(DC IN/SYNC terminal)
TRIGGER D
(DIGITAL terminal)
Internal VD
VD output
Index output
(INDEX)
Video output
_J
“1
I-------------------------------------
I
TRIGGER : Approx. 1.9//S
^ TRIGGER D : Approx. 2.4 ц s
^ Exposure period < ----------- Щ Exposure period
Falling edge mode
Rising edge mode
Exposure period
^prox. 4.4(IS
U U J J U и 1 J ' J u J
I n-1 I I n-1 1 i 1 n II n II n . 1 n+1 1 1 n+1 .
l
I
U u u u u U Lr
•Picture output after 1 V
(Trigger pulse doesn’t
pass the VD falling.)
* Picture output after 2 V
(Trigger pulse pass the
VD falling.)
A picture is output at the first field
after the end of die exposure.
* Picture output after 2 V
(Trigger pulse pass the
VD falling.)
@ : Camera through picture
Q : Memory picture
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