Samsung SCC-B2315P User Manual page 11

5 ALC Lens Selection Switch
This switch is used to select the type of the Auto Iris lens for
use. After this setting, you have to also set the lens type in the
Setup menu (In ALC... and WDR... submenus of IRIS).
DC: When the Auto Iris lens is installed for DC control

signals, set the switch to "DC."
VIDEO: When the Auto Iris lens is installed for Video

control signals, set the switch to "VIDEO."
Auto Iris Lens (Optional)
This lens is installed on this camera.
Note
When the camera lens becomes dirty, softly clean it with a lens
tissue or a cloth soaked in pure ethanol.
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