A quad is an accessory to your surveillance system that splits a video monitor into 4 screens. Without a quad you would only be able view one camera at a time. A quad is only needed when you are using more than one camera and using a VCR or VISEC to record or when you are only monitoring and not recording at all. Quads have many functions including different splitting options, alarms, motion detection and zoom functions. The low price of a quad is an easy and cheap addition to your surveillance system.
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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