JAI CV-M10 Functions and Operation, Input/Output of HD/VD Signal, Continuous operation

CV-M10BX/CV-M10RS

6. Functions and Operation

Apart from the standard continuous operation, the CV-M10 features two external asynchronous trigger modes, Edge Pre- select and Pulse Width Control mode. These 2 external trigger modes can operate with either H reset or H non-reset. In Edge Pre-select and H reset, the internal HD is reset on the falling edge of the trigger and the exposure starts. For Pulse Width

Control and H reset, the rising edge of the trigger will stop the exposure and reset the internal HD. In H non-reset, the
PULSEWIDTH	Trigger		Exposure			Readout
exposure will be synchronizedEDGEto thePREinternal-SELECTHD. It willTriggerstart			shuttertime			Readout
		on the		Exposurefirst HD after	the trigger			negative going edge.
EDGEPRE-SELECT
	Trigger
Hnon-reset	int.HD		Exposure
EDGEPRE-SELECT	Trigger		shuttertime			Readout
Hreset	int.HD		Exposure
			shuttertime				Readout

6-1. Input/Output of HD/VD Signal

6.1.1. Input of External HD/VD signals

This setting is factory pre-set. The video output is synchronized with external HD/VD signals if applied. If no ext. HD is connected, the camera will switch to the internal X-tal controlled HD sync. If no ext. VD is connected, the camera will continue with its internal VD.

The external HD/VD signal should be 4.0 Vp-p ±2.0V from a 75 ohm source. In case of TTL level input 2.0 to 5.0V the 75 ohm termination can be removed by open JP3/JP6 on PK8189A board.

6.1.2. Output of Internal HD/VD signals

In order to output internal HD/VD signal 4.0Vp-p from a 75 ohm source, a jumper setting is required. JP1/JP4 on PK8189A board is to be open, and JP5/JP7 are to be short.

6.2. Continuous operation

For application that do not require asynchronous external trigger, but run in continuous operation, this mode is used. SW1- 4 Trigger select on camera rear is set to ON for normal internal trigger mode. The shutter time or exposure time are selected by SW1-1 to SW1-3 on camera rear (and SW1-1 to SW1-4 on PK8206 for BX versions). The setting can be done via RS 232C for the RS versions.

The shutter time can be selected within the following range:

Normal shutter	8 step. 1/50 to 1/10,000 sec. for CCIR. 1/60 to 1/10,000 sec. for EIA
High speed shutter	8 step. 1/25,000 to 1/917,000 sec for CCIR.
	1/20,000 sec. to 1/800,000 sec. for EIA
Low speed shutter	8 step. 2 fields to 16 fields	for CCIR and EIA

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