CCTV (closed circuit television) security cameras typically connect to a security monitor with a special connector called a BNC (British Naval Connector) cable. These monitors are expensive and can only be used in security applications. However, you can connect your TV to your security cameras by using an adaptor and a video switcher. The switcher will allow you to switch between four or more cameras.
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Things you need
- BNC-to-RCA adaptor (See Resource 1)
- RCA male-to-male cable (See Resource 2)
- Video Switcher (See Resource 3)
Connect your security camera outputs to the inputs of the video switcher.
Connect the BNC-to-RCA adaptor to the output of the video switcher. Many switchers have two outputs; you can use the second output to record to a DVR or a VCR. Keep in mind you will not be recording all four cameras simultaneously; your recorder will record only what is displayed on your TV. You also can use the second output to display your cameras on another TV.
Connect one end of the RCA male-to-male cable to the BNC-to-RCA adaptor and the other end to the video input of your TV, which usually is the yellow connection port.
Turn on the video switcher.
Turn on your TV and use your remote control or menu button to navigate to the menu that allows you to select the video input. Select the input that you plugged the RCA cable into, either AUX 1, 2 or 3 or Line In.
Adjust the dwell time, which is how long the switcher displays each camera, or select one camera to monitor.
Tips and warnings
- Some switchers come with a remote control which will allow you to set the dwell time or display one particular camera on your television. If you want to be able to control the switcher from another room, you should buy a switcher that has an RF remote control because a standard IR remote control is line-of-sight only. If you have more than four cameras, you can purchase units that switch up to 16 or more cameras. If you have a modern CCTV recorder, you will not need a video switcher because your CCTV recorder has a built-in video switcher.
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