JAI operation manual CV-M50 EIA Non-interlaced / Field accumulation mode

CV-M50

To use this mode

Set:	SW1-4 to ON for ext. trigger shutter
	SW1-5 to OFF for field accumulation
	SW1-6 to ON for non-interlaced
	SW1-1,2 and 3 to shutter speed
Input:	Ext. trigger to pin 5 on 6 pin multi connector.
	Ext. HD to pin 6 on 12-pin multi connector. (If used).
	75 Ohm termination is done with SW2-1 (HD) and SW2-2 (ext.trigger) on PK8057 board.

Refer to Timing Chart and Cautions below.

Detailed switch and jumper setting is described in “7. Mode Setting”.

For connections see “5. Pin Assignment”.

Cautions in the Edge Pre-select Mode.

1.Edge pre-select mode is effective only in non-interlaced, field accumulation mode.

2.The exposure start may delay up to 1H max., when the falling edge of ext. trigger pulse is not synchronized with the falling edge of ext. HD signal. To avoid this 1H delay and jitter, the falling edge of the trigger pulse should be synchronized with the HD pulse as shown below. It can be the ext. HD input or the Internal HD output.

3.The ext. trigger input is 75 Ohm terminated as factory setting. (R127 short and SW2-2 ON). The

voltage level of the ext. trigger has to be 4.0 Vp-p ± 2.0 V. The duration should be more than 1 H negative going. >64 µsec. and < 60 msec. The input is AC coupled.

4.If the ext. trigger input and ext. HD input are from a source with TTL level, set SW2-1 and SW2-2 OFF for non-terminated. SW2-1 for HD signal, SW2-2 for ext. trigger pulse. See “7.2 SW2 on PK8057 Board”.

CV-M50 EIA (Non-interlaced / Field accumulation mode)

Edge pre-select mode (for non-interlace only)			EIA : 1H = 63.5∝s
TRIG				1H	TRIG in
1H more
EXT HD
INT HD
INT VD
1.5H	9H		9H	1H	1.5H	9H
EEN						0.5H
Exposure time	12.5H			Exposure time
0.5H
WEN	10.5H	2H	9H
CCD out			Effective pixels
			No.10 to 251
Video out		20H	242H	20H
		Blanking	Effective video	Blanking
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