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Installation and Connections
18
Connecting Video Output
Main video output includes BNC (CVBS PAL/NTSC, 1.0VP-P, 75Ω), VGA
and HDMI. SPOT (matrix) output and loop output are also supported by
BNC connection.
The system supports the three kinds of outputs at the same time.
1280x720 (720p) resolution setting is recommended for HDMI output.
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 ports on the rear panel are bound to video input
channel 1-4. The rest 12-channel audio input can be connected through the
DB25 interface.
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.