Obscure camera interface

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Hi guys,

I've gotten an old camera (Pulnix VS-79), and it's got a CANNON 9 connector as the only interface going into it. I can't find the pinout anywhere, nor any data for it. Does anyone have a clue about it?

Thanks,

David

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There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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I bet it outputs plain old CVBS. Open it up and show us its guts :)

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Quote:
Open it up and show us its guts

B-b-but that would void the warranty... :wink:

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I would really not call that a "Cannon" connector. Its a plain-vanilla DB-9!

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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I was hoping not to have to dissasemble the camera.

Juim: I'll remember that in the future.

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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There is a specific connector style called "Cannon Connector". The one I am thinking of is circular, multi-pin, usually metal body, latching, often used for audio such as microphones. Here is a wikipedia entry:

http://en.wikipedia.org/wiki/XLR...

This is the generic, made by everybody, DB-9.

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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Well, I got the thing opened, here are some images I took.

The mother board seems to be one for all models, the individual models most likely differ in connected cables and jumper settings. Now just to decode what the individual signals do.

I'll check the output against what a composite video signal should look like on a scope.

Thanks for the help so far.

David

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There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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Oh, I also broke the warranty. The horror... the horror...

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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I see one pin on the DB-9 board marked "video". Bet the output is some sort of composite video, then. Either NTSC or PAL, most likely.

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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Looks like the pinout is called out in your last picture? I wonder if you give it +12V, +5V (unless that's generated on the board? It doesn't say "in"), GND, and +5V on the ON/OFF line if it'd give you composite video on the video out pin? No idea...

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There are a lot of 12V DC powered cameras out there. I'm guessing that the 12V is input power and 5V is generated locally.

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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Quote:
I would really not call that a "Cannon" connector. Its a plain-vanilla DB-9!

Just nitpickin': While almost always called DB-9, the correct name is DE-9.

As of January 15, 2018, Site fix-up work has begun! Now do your part and report any bugs or deficiencies here

No guarantees, but if we don't report problems they won't get much of  a chance to be fixed! Details/discussions at link given just above.

 

"Some questions have no answers."[C Baird] "There comes a point where the spoon-feeding has to stop and the independent thinking has to start." [C Lawson] "There are always ways to disagree, without being disagreeable."[E Weddington] "Words represent concepts. Use the wrong words, communicate the wrong concept." [J Morin] "Persistence only goes so far if you set yourself up for failure." [Kartman]

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True, just as RS232 is no longer called RS232 but TIA-232-F :mrgreen:

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I tried the device yesterday. The device is indeed powered by 12V. Most of the pins on the connector are just ground pins - even if they had any extra functions, they are now hard wired through internal jumpers to the ground. The +5V seems to be just for some internal workings of the interface board.

The connector is pretty much - +12V, GND (and lots of it!), VIDEO.

I hooked the device up yesterday, and got this signal from the video pin. From what I can tell it's simple PAL.

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There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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So thanks guys for your help, mystery solved.

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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David, the answer looks like it's written on the circuit board with the connector on it... though you may have to drive the on/off either to 5v or ground to wake things up.

If all else fails, you could always drop a line to jai.com - there's nothing on the site but it can't hurt.

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Hi Neil,

Thanks for the answer, but it seems to be done - I figured out the pinout, tested it and it seems to be working. I still would like a datasheet, I'll send them a mail. I'll probably connect the camera onto a TV today.

Thanks,

David

There are pointy haired bald people.
Time flies when you have a bad prescaler selected.

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Don't forget the 75 ohm terminating resistor!

I see from the timings that our posts crossed.

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15.72kHz is closer to NTSC (15.75) than PAL (15.625). 525 lines, 60 frames/sec. Trigger on frame sync to be sure.