A quad is an accessory to your surveillance system that splits a videomonitor into 4 screens. Without a quad you would only be able view onecamera at a time. A quad is only needed when you are using more thanone camera and using a VCR or VISEC to record or when you are only
Below are two examples of how a quad works:
This is a surveillance system that is monitored
only:
This is a surveillance system recording
and monitoring:
 4
Channel Color or Black & White Quad
• QD-104 Black/White 4 Channel Quad
• QD-904R Color 4 Channel Quad
Features include:
- Full duplex allows transfer of recording and playback
video at the same time.
- 2x2 zoom
- 60 frames per second
- Real time clock
- Title generator
- On-screen display
- No boarder for full quad display
- 2H adaptive comb filters for Y/C separation
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