Power Description
Carefully check the voltage and current capacity of the rated power. The rated power is indicated in the back of main
unit.
Model
4 305 21
4 305 23/4 305 24/4 305 25
For the DC input models, be careful with the polarity of DC power. The system should be permanentally damaged by
wrong DC input.
In case that the length of the power wire is very long, there may be voltage drop and the syatem may not work properly.
Make the length of the power wire as short as possible.
RS-485 Communication
For PTZ control, connect the cable(s) to your keyboard or DVR. To connect multiple cameras to a single controller, RS
communication should be connected in
terminate the camera. When connecting more than one camera to a single controller, terminate the last camera on the
communication line. The last camera means the camera farthest in cable length from the controller.
length of the communication cable betw
less than 1.2Km.
28
Carefully check the voltage and current capacity of the rated power. The rated power is indicated in the back of main
Input Voltage Range
Current Consumption
DC 11V ~ 15V
0.8 A
2.5 A
For the DC input models, be careful with the polarity of DC power. The system should be permanentally damaged by
In case that the length of the power wire is very long, there may be voltage drop and the syatem may not work properly.
Make the length of the power wire as short as possible.
For PTZ control, connect the cable(s) to your keyboard or DVR. To connect multiple cameras to a single controller, RS
communication should be connected in parallel as shown below. If you are connecting a single camera to a controller,
era. When connecting more than one camera to a single controller, terminate the last camera on the
communication line. The last camera means the camera farthest in cable length from the controller.
length of the communication cable between a controller and the camera(s) on the same communication line must be
Carefully check the voltage and current capacity of the rated power. The rated power is indicated in the back of main
Current Consumption
For the DC input models, be careful with the polarity of DC power. The system should be permanentally damaged by
In case that the length of the power wire is very long, there may be voltage drop and the syatem may not work properly.
For PTZ control, connect the cable(s) to your keyboard or DVR. To connect multiple cameras to a single controller, RS-485
as shown below. If you are connecting a single camera to a controller,
era. When connecting more than one camera to a single controller, terminate the last camera on the
communication line. The last camera means the camera farthest in cable length from the controller. Note that the total
een a controller and the camera(s) on the same communication line must be
