Genie HDC222 Operation Manual page 13

6. INSTALLATION
5. Insert the connection plug from the auto iris lens cable into the auto
lens connector, which is located on the side of the camera.
* NOTE
Use the lens under the specification as shown.
Otherwise the lens can damage the camera or
abnormal fixing may result.
C-mount lens: 10 mm or less
CS-mount lens: 5 mm or less
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