To identify camera?

Agile

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• 4 Aug 2011

• #1

I have some bullet style cameras which have no makers name on them.

The markings on each side are:-

Vari Focal B&W CCD Camera.

The wires are screened clear and a red. Is it safe to assume the red ia 12 VDC?

Can anyone identify the actual make ?

When there is no way to focus them why do they say "vari focus"?

If not should I assume they are about 380 line definition?

Tony

 

A

Alarm

• 4 Aug 2011

• #2

Take a picture.
Guessing on a vague description isnt worth spit.

 

A

alumni

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• 5 Aug 2011

• #3

Alarm said:

Take a picture.
Guessing on a vague description isnt worth spit.

Click to expand...

And if indeed they are 380, neither are the camera's

 

Agile

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• 5 Aug 2011

• #4

I have just discovered that the front part unscrews and exposes a zoom lens with variable focus.

I will see if I can provide a photo soon.

Tony

 

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ChrisOxford

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• 7 Aug 2011

• #5

Agile said:

The wires are screened clear and a red. Is it safe to assume the red ia 12 VDC?

Click to expand...

Hi Tony,

I think so.

The industry standard supply for all CCTV cams I've seen is 12V DC about 100 - 500mA (except for a few with high power IR LED illumination). Regulated to be on the safe side.

The screened cable has to be for composite video output, so by a process of elimination, the red must be the +12V supply.

Run it up on a variable supply if you've got one, with a meter set to the 1A (or whatever) range, so that you can pull the plug before damage is done if things don't seem right. You won't do any damage by trying too low a supply voltage.

 

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Alarm

• 7 Aug 2011

• #6

Industry standard is 12vdc?

Never seen 230VAC ones?

24vDC ones?


?????

 

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oasistechnical

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• 8 Aug 2011

• #7

and 24vac ones
aunt daisy used to use lots of 24vac ones

Oasis

 

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Alarm

• 8 Aug 2011

• #8

oasistechnical said:

and 24vac ones
aunt daisy used to use lots of 24vac ones

Oasis

Click to expand...

Forgot them, cheers.

 

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ChrisOxford

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• 14 Aug 2011

• #9

Alarm said:

Industry standard is 12vdc?

Never seen 230VAC ones?

24vDC ones?


?????

Click to expand...

Good point

But definitely can't be mains / 230VAC with wires that Tony's described.

And, 24VAC is extremely unlikely with that arrangement (common ground for CVBS and power supply) too.

24VDC definitely a possibility, but testing at 12VDC would do no harm.

Let us know the outcome, Tony.