Speco Technologies CVC230HZ - Manual (Page 7)

7. External Control connector
Relaters to the motion detection output signal.
Zoom and focus functions can be controlled using external
signals.
8. Communication Control Connector
Used to connect the Remote Controller (Option).
9. Power Input Terminal
Power supply terminal
+ Connection methods may vary depending on the video equipment.
Please refer to the model specific instruction manual.
+ Connect cables with the unit powered down.
+ Set the 75Ω / Hi-Z selection switch as shown below if you have an
intermediate device.
75Ω Hi-Z 75Ω Hi-Z