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Connecting Video Output
Video output includes BNC (CVBS PAL/NTSC, 1.0VP-P, 75Ω), VGA and
HDMI
.
The system supports the three kinds of outputs at the same time.
When you are using PC monitor to replace standard CCTV monitor, please
pay attention to the following points:
To extend the product’s life, do not run the pc monitor for a long time.
Regular demagnetization will keep device maintaining proper status.
Keep it away from strong electromagnetic interference devices.
Using TV as video output device is not a reliable substitution method. You
also need to reduce the working hour and control the interference from
power supply and other devices. The low quality TV may result in device
damage.
Connecting Audio Input & Output
Audio Input
The four audio input channels are bound to video input channel 1-4.
Use the BNC connector to connect the audio channel.
Due to high impedance of audio input, please use active sound pick-up.
Audio transmission is similar to video transmission. Try to avoid
interference, dry joint, and it shall be away from high tension current
Audio Output
The audio output signal parameter is usually over 200mv 1KΩ (BNC). It can
directly connect to low impedance earphones, active sound box or
amplifier-drive audio output device.
If the sound box and the pick-up cannot be separated spatially, it is easy to
cause a squeaking noise. In this case you can adopt the following
measures:
Use better sound pick-up with better directing property.