How to connect a security camera bnc cable to a monitor

Written by marshal m. rosenthal
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How to connect a security camera bnc cable to a monitor
(Michael Blann/Digital Vision/Getty Images)

Security cameras that are used for professional surveillance by police, government and other official uses feature a BNC (Bayonet Neill-Concelman) connector rather than the conventional video cable found on consumer devices. The BNC cable's video signal is compatible with a computer monitor, although the plug itself is not. To connect a security camera with a BNC connector to a computer monitor, use a BNC-to-VGA adaptor box. The adaptor box can be purchased from a computer store, or in some cases a hobby shop, and requires the use of an additional cable. No modification of the security camera or the monitor must be done.

Skill level:
Moderately Easy

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Things you need

  • BNC-to-VGA adaptor box
  • BNC-to-VGA adaptor box power supply
  • VGA cable

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Instructions

  1. 1

    Place the BNC-to-VGA adaptor box next to the computer monitor. Plug the adaptor box's cord to a wall socket for power. Plug other end into the power port on the adaptor box.

  2. 2

    Push the BNC connector at the end of the cable attached to the security camera over the BNC socket on the adaptor box. Rotate the BNC connector clockwise to lock it on the socket.

  3. 3

    Plug one end of a VGA cable into the VGA output on the adaptor box. Screw the tabs on each side of the VGA connector clockwise to lock it on the VGA output socket.

  4. 4

    Unscrew the tabs from the VGA connector that is in the computer monitor's VGA input socket. Insert the free end of the VGA cable's connector into the monitor's VGA input socket. Screw the tabs on each side of the VGA connector clockwise to lock it on the VGA input socket.

  5. 5

    Turn the security camera on. Turn the BNC-to-VGA adaptor box on. Turn the computer monitor on.

Tips and warnings

  • You can adjust the colour and other qualities of the video from the camera using the computer monitor's built-in menus.

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