VTC-C770DN
6
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4.2 Rear side view
5. Installation and Commissioning Instructions
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Make sure the power is removed before the installation.
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To apply power:
First connect the low voltage (DC12V or AC24V). Then plug the AC adapter to AC outlets to avoid an
improper reset from power jitter and a damage from the surge voltage when no load.
5.1. Attaching the lens
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Remove the Dust Protection cap from the lens mount
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Screw the lens onto the camera without using force
5.2. Setting the back focus lock
The back focus is the distance between the lens support on the camera and the image sensor. Optimum
focus is only possible when the correct distance is set. It may be necessary to set the back focus in
individual cases due to production tolerances of the lens. The iris of the lens must be open as wide as
possible. (Smallest F value) to set the back focus. For lenses with automatic iris control, you will require an
ND filter (gray filter) to prevent the iris from closing in bright light.
Setting for lenses with a fixed focal distance
If the focus cannot be set exactly by turning the focus ring (lens), please proceed as follows:
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OSD menu switches (Up/ Down/ Left/ Right / Enter)
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Video Output Connector (BNC)
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Power indicator LED
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Power Input Terminal
Содержание VTC-C770DN
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