EverFocus Eq250 Operation Instructions Manual page 10

frequency (60Hz) is possible but not available in using DC or other operation power such as
NTSC in 50Hz or PAL in 60Hz power system.
VD/DD (Auto Iris lens Type)
For video drive auto iris lens, please set switch to VD. For direct drive iris lens, set switch to DD.
The default setting is DD. Wire the cable of lens to lens connector according to the following
table.
Video Drive
Direct Drive
Pin1 Pin2
+12V GND VD-IRIS
6
Cnt- Cnt+
9
Pin3 Pin4
GND
Drv+ Drv-
Lens Connector
1
3
2
4