Pulnix TM-6703 Manual de instrucciones descargar pdf (Pagina 20)

OPERATION

TM-6703 Progressive Scan Double Speed Shutter Camera Page 15

FIGURE 9. Scan Output

3.1.5 Option 7-2

In order to connect the TM-6703 camera to various frame grabbers, internal jumper settings allow the

TM-6703 to accept external HD and VD sync at double speed (fH = 31.468 KHz), or to output HD, VD

and pixel clock for variable scan frame grabbers. This option can be requested when ordering the TM-

6703.

FIGURE 10. I/O Jumpers

3.1.6 V-Sync Output Selection for Async Mode (OP51-2)

At async image capturing, some frame grabbers cannot take the speciﬁc frame when continuous video

sync presents. The TM-6703 video output is normally composite sync with frame rate V-sync regardless

of the actual image or blank image.When it is asynchronously reset, the newly reset V-sync may be

random to normal sync rate and can be very close to the regular rate V-sync. This may be problematic to

the frame grabber in capturing the correct image.By selecting the rear plate board jumper, the V-sync

output occurs only at the async reset, and no V-sync occurs until the next Vinit (async trigger) comes in.

The frame grabber can then look for this V-sync and capture the correct timing.

Normal scan

Partial scan

Fast dump

Center

100 lines

VD (partial scan)

Center

of Image

W`1 (VD)

W12

OUT

BOTTOM BOARD, TOP SIDE

(HD)

Last connection

not used; do not

connect to this

position.

CLOCK

VIDEO

REAR BOARD (FACING INWARD)

Standard settings (inputs) Output se

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Pulnix TM-6703 Manual de instrucciones Pagina 20