HIKVISION 62 Series Quick Start Manual page 11

The type of auto-iris lens socket interface is shown below:
Power, Video and GND pins are used when the auto-iris is driven by
video; Damp+, Damp-, Drive+ and Drive- pins are used when the
auto-iris is driven by DC.
The rear panel overview of type I bullet camera is shown in the
figure below:
Network Camera·Quick Start Guide
Figure 1-2 Auto-iris Interface
Table 1-2
No.
1
2
3
4
Pins
DC-driven
Damp-
Damp+
Drive+
Drive-
11