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Installation Instructions
1. Remove the plastic dome cover.
2. Loosen the two screws of the supporting bracket to remove the camera body.
3. Using four screws to fix the camera base on the ceiling.
4. Put the camera body back to the supporting bracket, then tighten the two screws
to fix the camera.
5. Connect the BNC connector of the camera to a color monitor, or other video
device through a 75 ohm type coaxial cable with BNC female connector at cable
extension.
6. Connect the DC+12V regulated power source of the camera (DC Jack) to the
DC12V Power-in jack with 2mm, center+, outer-plug.
7. Connect the audio output connector of the camera (model High Resolution Dome
A) to the audio in connector of the monitor.
NOTE: Be very careful not to scratch or damage the lens while making any kind of
setting.
Lens Adjustments
• Zoom and focus adjustments
After the camera was installed, the zoom and focus of the lens must be
adjusted.
1. Loosen the zoom ring knob, and then turn the ring towards <W> or <T> as
necessary to obtain the desired view range.
W side (Zoom out)
The viewing range will be wider and the subject is smaller.
T side (Zoom in)
The viewing range will be smaller and the subject is larger.
2. Loosen the focus ring knob, then turn the ring towards <∞ > or <N> as
necessary to obtain the clear video image.
3. Repeat steps 2 and 3 until the best image is obtained. Once the lens setting
finished, tighten the zoom ring and the focus ring knobs.
DCB-480V Users Manual and Installation Instructions
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