Old analog system upgrade

[CCTV user 0]

I have an old analog system that was in place when I bought the house. 

There is a switch labelled 'video switch VSM-28A' and an analog monitor. 

The wiring is BNC but has been extended with CAT 5 to reach the cameras. 

Does anyone have any recommendations for cameras I can buy to connect to the CAT 5 cable but which will provide an analog signal and the best DVR I could replace the switch with?

Not keen to replace the wiring as this would mean lifting floorboards etc.

[tomcctv 190]

Hi. That must be an old system to be using one of those

you don’t have a recorder connected at the moment ?

[CCTV user 0]

It looks pretty old!

No recorder connected at the moment - just an old black and white monitor. I think the system dates from the 90s but it might be older...

Keen to add a recorder. 

[tomcctv 190]

Yes it sounds like an old vcr with using a vms

 

how many cameras do you have 

also the cat5 how is it connected to coax

 

what is your budget going to be

[CCTV user 0]

There are 6 cameras. I don't know how the CAT 5 is connected to the COAX as that bit is under the floorboards. 

However, power is supplied to the cameras over the CAT5. There are two COAX cables for every camera - one carrying the video signal and connected to the video switch, the other connected to a power supply. 

No idea what a reasonable budget is to replace the cameras and add a modern DVR. 

[tomcctv 190]

Hi. 
we’re are you based I’ll post you some links for your location

sounds like you could use a HD analog system with your existing cables

[CCTV user 0]

Thanks. Based in South East London.

The key piece I don't understand is which cameras will connect to the CAT 5 cable but supply an analog signal. 

[tomcctv 190]

Ok can you post a pick of cables into the vms and cables to power supply

[CCTV user 0]

A pic of the cables going into the VMS and one of them going into the power supply. 

[tomcctv 190]

Ok looks like coax to cameras ..... that power unit is a old alarm supply .... not powerful enough so that will also have to be changed

 

Is this for home use or business 

[CCTV user 0]

Thanks. Its home use. 

The COAX does not run as far at the cameras and is joined the CAT5 under the floor boards (both COAX cables for each camera must be joined to a single cat 5 cable for that camera). The cameras are then connected to the CAT5 which carries both the power and the video signal. 

[tomcctv 190]

So at the camera end you only have cat5

your coax is it two cables joined together? 

[CCTV user 0]

Yes at the camera end it is just the CAT 5. 

Two COAX cables for each camera disappear under the floorboards and must be joined to a single cat5 for each camera. The COAX are not joined together and one comes form the power supply and the other from the video switch. 

[tomcctv 190]

I can’t see any coax in your picture going to power supply. 
 

camera end ..... how is cable connected to camera 

[CCTV user 0]

The COAX is going into the power supply in the bottom left of the picture I uploaded above. 

Attached is a picture of how the CAT 5 is wired into the cameras 

[tomcctv 190]

Hi. Looking at your camera picture you have two cat5 connected

 

its hard to try and sort out with photos 

can you also take cover off power supply and take a picture 

 

looking at what is posted ….. you have a 100ohm system ( which matched the age of the system )

you also have cables missing at the VSM location because your cameras show audio connection (old cameras would loop in out each cam) giving 1 audio channel 

At the moment using your existing cables is not a option 

let’s look in power supply 

[CCTV user 0]

Attached is a pic of the power supply without the cover - it does actually look like the cable to the power supply is cat5 not BNC. 

I have also attached a pick of the back of the VSM

[tomcctv 190]

Hi. Ok now all makes sense…. There is another box somewhere…….. which is joining coax to cat 5.  Used to be called utp splitter 

this stop you using the coax that is connected to your vms box and also prevents you using HD analog without doing extra cable work. 
but the cat5 cable going to your power supply can be used and infact makes your job easier but you will have to install a ip system and not analog and this will also do away with that old power supply ………. Ip Poe systems don’t need extra power

will you be installing your self ?

[CCTV user 0]

Thanks - that is exactly what I thought when I saw the system. 

Will probably install myself. Can you recommend cameras and POE IP recording unit?

[tomcctv 190]

Hi for a system that will do 4K cameras 

8 way Poe nvr with 4 2mp cameras is around £410  to add another 4 cameras you need to workout if you want a camera with audio …. These are good for cameras at front door area

i am only says 4 to start with because you need to check your cat5 cables from power unit 

installing yourself is easy but you need the tools and a network tester

what I would do next is make up the cable ends and test them all  to determine amount of cameras

here are some tools you need

https://www.screwfix.com/p/philex-network-cable-tester/93219

https://www.screwfix.com/p/rj45-crimping-tool-8-200mm/30318
 

https://www.screwfix.com/p/philex-rj45-8p-8c-connectors-100-pack/32033

 

wire diagram