Vista VPM8420 Installation Instructions Manual page 9

+ = Lens positive supply
+
= Lens ground
V
V = Video drive signal
Auto-Iris Lens Connections
FUNCTION SWITCHES
LENS SELECTION
LENS CONNECTION
3 1 = Damp -
1
2 = Damp +
3 = Drive +
4 = Drive -
2
4
DD Lens Connector