BNC connector from surveilance camera

[efty]

I got an old surveilance camera which has a BNC connector. Which is the best way to connect it to my Marvel g200 box?

I don't care much about quality. I already have and standard signal to S-video converter.

Any suggestions much appreciated.

Thanks

Efty

[Greebe]

Most likely it's a composite video out.

[Brian Ellis]

Shouldn't think there is much difficulty. Take a standard video cable, cut the yellow plug off one end and solder or crimp on a BNC connector. These are available for different cable diameters, so be sure to get the right type.

I don't know why BNC isn't standard for video work: much better and less lossy than the 'orrible Cinch/RCA connectors.

[efty]

How can I check that the camera is actually working??

Ok I tried connecting the camera to the s-video in of my box via the converter(standard video to s-video) and nothing comes up on the screen.

Is there a way I can confirm that the camera is actually working? Or my box is messed up?

[Greebe]

I don't know why BNC isn't standard for video work: much better and less lossy than the 'orrible Cinch/RCA connectors.

It is... all Pro studio equipment uses BNC

[efty]

let me get this straight

There is only 1 wire taking the signal from the camera??
As far as i know there is an internal and external wire going through. I got an adaptor that converts the bnc to standard video cable.

I pluged it in the video in(yellow). Again no signal. I tested the wires with a multimeter and they are fine. Is there a way i can test the camera video out with a simple multimeter?

[Greebe]

Most of these cameras run off of 12vdc, 24vac or 120vac depending on the model.... yes you really need a MM

[Brian Ellis]

When I answered previously, I assumed you had the camera actually working. Now surveillance cameras may require a number of external things. Many have their power supply from the monitor, using the coax video cable and DC/video separator filters at each end, or they may have a separate cable. In the latter case, synching may also come from the monitor end, so that you can switch between cameras without risk of frame rollover, thereby losing a second of what could be essential footage. The one thing that is reasonably standard, I think, is a 1 V p-p signal, but it is not impossible for non-standard frame/line frequencies to be used, blanking and so on. There is actually no reason for a closed-circuit surveillance system to conform to standards, although they may do.

[efty]

I tried searching the web to find the camera specs but I could not find anything.

The camera has a Sync IN
Video Out
Lens connector(which I have no idea what it is)

It also has a Line/Int switch

I also has a lock and Back focus adjustment screws.

Will I need to provide a sync in signal for the camera to work??

Tha camera is a JVC TK-S200 Video Camera with a nice zoomable lense and diaphram adjustment.

Also I do not think that this camera frequency is non standard since it was connected to a standard TV.