User manual
VIVOTEK
User's Manual - 185  
range"  * Only valid when "piris_mode"=manual or 
"irismode"=fixed 
* Only available when 
"capability_image_c<n>_exposure_rangetyp
e" is "twovalues". 
maxexposure 
<product dependent>
<1~32000>, 
<5~32000>, 
<1~8000>, 
<5~8000>, 
etc. 
* Available value is 
listed in 
"capability_image_c
<n>_exposure_ma
xrange" 
4/4  Maximum exposure time 
1~32000 => 1s ~ 1/32000s 
5~32000 => 1/5s ~ 1/32000s 
1~8000 => 1s ~ 1/8000s 
5~8000 => 1/5s ~ 1/8000s 
etc. 
* This parameter may also restrict image 
frame rate from sensor due to sensor 
generates a frame per exposure time. Ex: If 
this is set to 1/5s ~ 1/8000s and camera takes 
1/5s on the night, then sensor only outputs 5 
frame/s. 
* Only available when 
"capability_image_c<n>_exposure_maxrang
e" != "-" 
* Only valid when "piris_mode"=manual or 
"irismode"=fixed 
* Only available when 
"capability_image_c<n>_exposure_rangetyp
e" is "twovalues". 
shuttervalue 
<product dependent>
<1~32000>, 
<5~32000>, 
<1~8000>, 
<5~8000>, 
etc. 
* Available value is 
listed in 
"capability_image_c
<n>_exposure_ma
xrange" 
4/4  Exposure time 
1~32000 => 1s ~ 1/32000s 
5~32000 => 1/5s ~ 1/32000s 
1~8000 => 1s ~ 1/8000s 
5~8000 => 1/5s ~ 1/8000s 
etc. 
* This parameter may also restrict image 
frame rate from sensor due to sensor 
generates a frame per exposure time. Ex: If 
this is set to 1/5s ~ 1/8000s and camera takes 
1/5s on the night, then sensor only outputs 5 
frame/s. 










