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CV-M50
7.1.4. Ext. Trigger Shutter Mode
When trigger select SW1-4 is ON. The camera is in ext. trigger shutter mode. The SW1-1, SW1-2 and SW1-
3 are for selecting the shutter speed. The range is from OFF to 1/10,000 second in 8 steps. For each
external trigger pulse, the camera will make an exposure with the selected shutter speed.
The shutter time setting is shown in “7.1.3. Table for Shutter Time”.
7.1.5. Trigger Select
SW1-4 is will select the camera operation mode.
OFF is normal mode, where the camera is running continuously.
ON is the ext. trigger shutter mode. Here the external trigger pulse will start the exposure.
7.1.6. CCD Accumulation
SW1-5 will select the CCD accumulation mode.
OFF is field accumulation. It is used for moving objects.
ON is frame accumulation. It is for still objects.
7.1.7. Scanning System
SW1-6 will select the scanning system.
OFF is 2.1 interlaced. It will follow the EIA or CCIR standard for interlaced scanning.
ON is non-interlaced.
In EIA the non-interlaced output is continuous ODD field. In CCIR the non-interlaced output is continuous
EVEN field.
If the camera is ext. HD/VD synchronized with a non-interlaced sync, SW1-6 be in ON position.
7.1.8. Gamma Correction
SW1-7 will select the gamma correction.
OFF is gamma 1.0. It is linear. Recommended for machine vision and image processing.
ON is gamma 0.45. It is non-linear.
7.1.9. Gain Control
SW1-8 is for gain select.
OFF is manual gain. Here the gain can be controlled by the GAIN potmeter on the rear panel.
ON is the AGC mode. Here the gain is adjusted automatically. The AGC level can be adjusted by VR3 on
PK8056 board. See “8. Adjustment of Video Signal Output Level”.
7.2. SW2 on PK8057 Board
This switch is to select 75 Ohm termination or TTL for ext. HD and ext. VD.
SW2-1 is for HD signal.
SW2-2 is for VD signal, or for ext. trigger in.
ON is 75 Ohm terminated. (Factory setting).
OFF is TTL level.
1
2
S W 2
O N
O F F
H D
VD
