HIKVISION DS?2CD883F?EW Installation Manual page 9

Installation Manual of Network Box Camera
Serial NO.
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Back Focus Adjustment:
When it still fails to realize precise focusing after having confirmed the correct lens interface, the
back focus adjustment may be required.
Operate the following steps:
Tighten the lens firstly and then loosen the fixed back focus ring; rotate the lens slowly until the
video image turns to be clear, and finally tighten and lock the back focus ring.
NOTE:
The type of auto‐iris interface is square four‐hole type,
and the definition of each pin as shown:
Video
1 Power
2
3 Video
4 GND
Auto iris interface with video driving uses three pins:
Power, Video and GND; Auto iris interface with DC driving
uses four pins: Damp+, Damp‐, Drive+ and Drive‐.
Hangzhou Hikvision Digital Technology Co., Ltd. | Copyright ©
DC
Damp-
NC Damp+
Drive+
Drive-
Description
Lens mount
Back Focus Ring
SD card slot
Auto iris interface
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