Old camera connection - how to connect? What's missing?


  #1  
Old 07-30-18, 01:09 AM
S
Member
Thread Starter
Join Date: Jul 2018
Location: Lithuania
Posts: 1
Received 0 Votes on 0 Posts
Exclamation Old camera connection - how to connect? What's missing?

Hi everyone,

i am new here and absolutely "green" talking about surveilance system and all the cameras. Recently we have bought a house with built in surveilance system, the outside cameras are connected throught coaxial cable (RS232 i guess? It's a pin that you have to twist a little bit to disconnect), that part is pretty clear. However there is some interior cameras mounted and disguised as motion detectors as i understand they connect through pins in the photo. There are 3 different 8 pin connectors, but only 4 wires comes in to them (2 to the first one, 1 to the second and 1 to the third). So my main question is how to connect them? What is missing? What connectors/devices should i buy?

Outside of the camera


Inside of the camera


One side of 3 different connectors


Another side of 3 different connectors


Power cable, as i understand coaxial cable is also used as power source for cameras, so this power cable should be somehow connected with these cameras? Or am i wrong and it's just dedicated for old school NVR?



If you need any additional information to solve this puzzle, please feel free to ask. Atleast it's a puzzle for me As far as i know there are 3 such cameras. Is it possible that each connector represents a different camera?
 
  #2  
Old 07-30-18, 06:34 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 61,828
Received 1,473 Votes on 1,361 Posts
Welcome to the forums from across the seas.

We'll try to help you.

That 1/4 turn connector is called a BNC connector. Used for connecting 75 ohm coax video lines.

Cameras connected using a BNC connector usually have an additional cable to carry power to them. It's possible those cameras are powered thru the coax but not likely.

I see the camera in your hand. I see a lot of misc. connectors laying around. I see a blue, red, green and orange wire connected to terminal strips. Are those the four wires that are coming directly out of the camera ?

If yes..... there needs to be a two conductor power wire run to the camera and a video coax line.

That large plug shown in the picture is a power cord for possibly a power supply. The cameras run on low voltage. Usually 12vDC.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: