How to power and connect an ethernet camera and give output to a TV. RCA cable?

[sudhirkots]

I have a medical device which has a camera, which records eyes..close up..The camera is an ethernet based one..so gets power from a device( which must be an injector). It gives output by a yellow composite video out and a single white audio out cable to a TV for display.
It has stopped working, i suspect due to the injector device rather than the camera.
What can i use to power the camera and see the display? Is such a device available? or should I just try a POE injector and send display to a PC or else use some other adapter to send display to RCA and TV? Please help. I am a Neurologist and do not know much technical jargon.

 

[sudhirkots]

the power supply is 12 Volt and 1.3 amps

 

[TonyR]

Most analog cams are 12VDC. The RJ-45 supplying power is possibly not POE but instead has a proprietary pin out....what is the camera make and model?

 

[sudhirkots]

thanks..i dont know the camera make..nothing is written on it. It is made by a medcical device company which has stopped making the device.
But the camera is a small square camera about40 mm by 40 mm and the lens is about 16 mm.
the only cable connecting the camera is a RJ-45..no other cable to supply power or get the data out form the camera. so camera gives output only via ethernet cablke RJ-45 and gets power also from it.
The " POE" device itself connects to the camera and power supply and gives output via RCA cable..as i showed in the earlier photos.

 

[TonyR]

Can you tell which pin numbers are the video pair (yellow RCA) and the audio pair (white RCA) by looking at them through the clear plastic of the RJ-45?

What about which pins supply power to the cam from the 12VDC power supply?

Below is an RJ-45 to help determine the pin numbers.

 

[sudhirkots]

I am uploading the photo of the RJ 45 and also the overall arrangement. The camera has RJ-45 connector which goes to this "device". the device gets power and has output via RCA white plus yellow to TV.,

 

[TonyR]

Have you a way to measure the output of the existing power supply and the polarity of its plug?
Can you input 12VDC at 2 amps into the jack for power?

 

[sudhirkots]

Yes..I shall get that done and also see whether the power supply has conked out.

 

[sudhirkots]

I hope it is just the power supply, as that can be easily replaced.
I dont know what is the substitute for the other device..the thing which supplies power to the camera..gets data from the camera via RJ 45 and outputs to TV via RCA

 

[eggsan]

as a proprietary device like yours, probably the only replaceable option could be the power supply. If you could use a multimeter, that’s the best way to test the power/connectors. You may still use a 12 volts light automotive tester. Even using a 12v auto bulb (center tab is positive, outside metal is negative) and a piece of cable, you could confirm an operational “good/bad” device, but still not guarantee the power ratings (volts/amp) are ok. In case the bulb is off, I will consider testing/replacing the 12v power pack

 

[TonyR]

as a proprietary device like yours, probably the only replaceable option could be the power supply. If you could use a multimeter, that’s the best way to test the power/connectors. You may still use a 12 volts light automotive tester. Even using a 12v auto bulb (center tab is positive, outside metal is negative) and a piece of cable, you could confirm an operational “good/bad” device, but still not guarantee the power ratings (volts/amp) are ok. In case the bulb is off, I will consider testing/replacing the 12v power pack

+1^^ for me but previously advised the OP, a neurologist, to use a DVM or multimeter to obtain the polarity.... the lamp may provide a decent load test.
12VDC power supplies are likely readily available but his device, as you also stated, is proprietary and he may have to use the existing plug on a new power supply so polarity is crucial if his device has no polarity protection.

 

[eggsan]

yes, maybe a photo of the dc connector, if detachable, could help. It looks like is only for power, since the a/v connector are within the box

 

[garycrist]

Have you tried to contact the manufacturer for the pin-out? I see they are still in biz.

 

[garycrist]

They are only using 3 pair! not the full 4 pairs. The 2 outer conductors are missing.

 

[sudhirkots]

The manufacturer has been taken over by another company and this product has been closed down