Digital Network Video Surveillance System
Use better sound pick-up with better directing property.
Reduce the volume of the sound box.
Using more sound-absorbing materials in decoration can reduce voice echo and improve acoustics
environment.
Adjust the layout to reduce happening of the squeaking.
Please refer to Figure 3-10. It is for audio and video output.
Figure 3-10
Audio/video output cable is shown as below. See Figure 3-11. You can use it when your monitor port is
general BNC port.
Figure 3-11
Please refer to the following sheet for detailed information.
Audio/Video Output Cable (Aviation-level port 4p male socket )
Socket
Color and Definition
1
Yellow BNC male port
（
Video input
）
2
White BNC male port
（
Audio input
）
Alarm Input and Output Connection
There are two alarm input types for you to select: normal open (NO) and normal close (NC).
1. Alarm input
a. Alarm input supports 6V-36V voltage signal alarm input.
b. When the alarm device is connecting one DVR and one other device, please use a relay to separate
them,
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