How-to Display Video from Multiple Security Cameras on One TV

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Here is a solution for how to display live video from multiple security cameras on one TV using a CCTV video multiplexer. This system can be used as a stand alone live video display system or it can be used in conjunction with a video surveillance DVR if recording is also required.

Display Multiple Security Cameras One TV

This is how it works.

  1. The security cameras are hard wired to the video multiplexer using RG59 Siamese coax cable. These multiplexers support analog CCTV cameras and HD-over Coax security cameras (AHD, HD-TVI, HDCVI formats supported). The RG59 Siamese cable runs both the power and video from the camera back to the location of the multiplexer.
  2. The video multiplexer has both an HDMI and VGA video output that connects to the video input of the TV / monitor.
  3. The multiplexer supports various screen layouts that can be selected using the wireless remote control or the buttons on the front of the unit itself.

HDMI over CAT6 to Extend Cable Distance

Many times the TV that is used to display the security camera feeds is not located very close to the multiplexer. This HDMI over CAT6 system solves that problem and the built-in infrared transmitter / receiver lets you remotely control multiplexer from the TV location.

Multiple HD Security Cameras Live Video One TV

This is how it works.

  1. The video surveillance cameras are still hard wired to the multiplexer using RG59 Siamese cable.
  2. The HDMI output of the multiplexer connects to the input of the HDMI over CAT-6 transmitter.
  3. The infrared transmitter cable / antenna that is included with the HDMI over CAT6 system is connected to the IR output.
  4. The antenna is positioned facing the infrared receiver on the multiplexer.
  5. CAT-6 cable is run from the output of the HDMI transmitter to the input of the HDMI receiver.
  6. The HDMI output of the receiver is connected to the TV / monitor with standard HDMI cable.
  7. The infrared receiver cable / antenna is connected to the IR input of the HDMI receiver. This enables the wireless remote control of the multiplexer to be used at the location of the TV.
    Both the HDMI video and infrared remote control communication is sent over the CAT-6 cable.

Multi-Camera TV Display Video Demo

Watch this video to see a demonstration of a 16 channel multiplexer being used to display live video from 16 HD security cameras on a TV. If you are watching the video from a PC, be sure to click the gear icon on the YouTube video player and select 1080p video resolution to watch in high definition.

Using a Multiplexer and DVR Together

If you need to setup a multi-camera display monitor and you also want to record video from your security cameras, you can use a security camera video splitter to share the video signal between a multiplexer and recording DVR. Some DVRs have a spot monitor / dual monitor display function, which eliminates the need for a multiplexer in this case. However, many DVRs do not have spot monitor functionality or if you have an application which requires multiple display monitor that each need to be independently controlled, a video splitter is a great solution to implement multiple multiplexers and/ or a DVR.

Security Cameras Connect to Multiplexer and DVR

This is how it works.

  1. RG59 coax cable is used to wire the security cameras to the BNC video inputs on this 4 to 8 channel CCTV video splitter. You can find other size video splitters here.
  2. RG59 coax cable is used to wire the 8 video outputs to the multiplexer and DVR.
  3. The multiplexer and DVR can be connected to a TV monitor and be independently controlled.

Learn More

Please visit this page to learn more about using CCTV multiplexers to display multiple security cameras on a TV.

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About Mike Haldas

is the co-founder and managing partner of CCTV Camera Pros. Mike works on product research and development for the company. Before starting CCTV Camera Pros, Mike worked as a software engineer in the web hosting industry. CCTV Camera Pros is a veteran owned business as Mike proudly served in the United States Marine Corps (USMC) from 1993 to 1997. Mike can be contacted for questions about this article and anything related to video surveillance systems at mike@cctvcamerapros.net.