CCTV Camera Power Supply Box Wiring with Premade Siamese Cable

CCTV Camera Power Supply Box Wiring with Premade Siamese Cable


In this video I’ll show you how to connect
a CCTV camera to a power supply box using pre-made Siamese cables. On my bench here
I have a 540L4 bullet camera. It’s standard DC-powered closed circuit camera that has
a BNC connector for the video, and then a male 2.1mm power plug. Here I have the pre-made
Siamese cable. Then just something to note, when you’re running this cable just be careful
and make sure you run the right ends. You can see they’re different. The camera end
is going to be the one that has the female power supply. Just be careful when you run
cables that you do them correctly. We can’t tell you how many times we’ve done it wrong
and then had to pull the cable out. Anyways, the video just pushes and twists
on, BNC connector, and then the 2.1mm power plug just pushes on real easy like that. Then
your cable would be run back to where your power supply and your DVR are located. Then
obviously the video would go to your DVR. I don’t have a DVR on the bench you can just
pretend that’s connected to a DVR. Then the power end, you’ll notice the power supply
box doesn’t have these 2.1mm plugs. It’s expecting a positive and a negative just wire connection
to these terminals. What we do is we use a PT3 power lead, plug that into the cable,
and then run this through the access holes on the top of the power supply box. Now this
is a DC power supply box, DC-powered camera. With DC power, polarity is important, so you
need to be sure to connect the positive connection, which is the solid red to the top terminal
block, and then the ground or common to the bottom, which will be the red and black wire.
These are just standard screw terminals. You just insert the wire and then tighten it down.
There’s the positive and then here’s the ground. Now those are secure there. Typically this
power supply box we mount it on the wall right near your DVR. It just gets powered by a standard
120 volt outlet. This just plugs into a standard wall outlet. Then there’s a power switch for
the whole power supply box. That fires up all the ports. This can power up to 18 cameras.
For more information on the equipment that was used in this video, please visit this
webpage. Thank you for watching.

7 Replies to “CCTV Camera Power Supply Box Wiring with Premade Siamese Cable”

  1. How to Wire CCTV Cameras to DC Power Supply Box

    In this video CCTV Camera Pros co-founder, @Mike Haldas, demonstrates how to connect a CCTV camera to a DC power supply box using pre-made Siamese cables.

    CCTV Camera Pros recommends using power supply boxes when planning a surveillance system with 4 or more cameras. Power supply boxes help make your wiring installation neat by running all of the power to a central box. Also, each channel is individually fused which provides protection for each camera.

    Here are a few important things to note when using premade Siamese cable with power boxes.

    1) Make sure that you pay attention when you run the cable so that the camera end is on the correct side of the run. One side of premade cable has a male and the other a female for the power supply wire. Get this wrong and you will be re-running that cable.

    2) You will need a PT-3, also known as a pig tail lead / power lead, for each cable. The PT-3 will be used to convert the 2.1mm power plug to a positive and ground wire, which screws into the terminals of the power supply box.

    Learn more about power supply boxes for security cameras here.
    http://cctvcamerapros.com/psbox

  2. Mike great video, where can I get one of these boxes and how do I know which one to buy? I have a 12 volt DC system I think.

  3. I want to buy it. But i have no idea about how much distance it can travel . is there any voltage drop with distance?
    If it is so. how to know about it.

  4. What if you have 8 -12 V cameras and you need 8 -24 Volt power supply? I have 8 cameras that are long distance and the guy who installed them said they are black and white because they need to be 24 volt, he installed them on 12volt.

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