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blackmagic converter box power?


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#1 Bo Hallen

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Posted 24 June 2015 - 07:52 AM

I am having trouble as to which cable I need to power the mini hdmi-sdi converter box on the top stage. I want to use power from the post(bottom stage). I understand a Zephyr has 3 pin lemos on the top stage. The blackmagic converter box is 12v dc barrel (2.1 mm mini jack) powered, right?

What in the world do I need to make this work? Can I draw power from my GH4 and send it to the converter? Is there such aa cable ( 3 pin lemo to female mini 12vdc jack). I know mediablackout makes 3 pin lemo to p tap. But p tap won't power the converter box? I don't believe?
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#2 Alan Rencher

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Posted 24 June 2015 - 10:40 AM

Hi Bo, I just updated the DC Barrel Power cable page to include connectors other than just P-Tap: http://mediablackout...el-power-cable/


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#3 Ken Nguyen

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Posted 24 June 2015 - 03:17 PM

Make sure you have a 12V regulated source to power Blackmagic converter.

The D tap might not work.

 

Cheers,

 

Ken Nguyen.


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#4 Victor Lazaro

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Posted 24 June 2015 - 05:13 PM

Ken, only the first version of the Blackmagic converters require a 12v regulated cable. The new one can accept a wider range of power (12 to 31 VDC) . In Bo's case it would be from a single Anton Bauer on a Zephyr.

 

Bo: Also look at this cable that Alan makes: http://mediablackout...egulator-cable/It will power your GH4 camera from the steadicam batterie. You won't need to remove the camera and reload a new battery and rebalance anymore. The battery model for the GH4 is Panasonic DMW-BLF19 and make sure to get the 12v 3 pin Lemo (0B.303) for the Zephyr side.

 

Also, Blackmagic uses 2.5 DC Barrel plugs. (Alan, you may want to specify that in the DC barrel dropdown)


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#5 David M. Aronson

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Posted 24 June 2015 - 05:48 PM

Are you sure about it only being the first version? I killed 3 before I switched to AJA.


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#6 G. Grammatikos

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Posted 24 June 2015 - 06:10 PM

Same cable for black magic camera
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#7 G. Grammatikos

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Posted 24 June 2015 - 06:12 PM

As for the voltage your converter refer the voltage issue on it
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#8 Jess Haas SOC

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Posted 02 July 2015 - 02:17 PM

I think they still make a converter that requires regulated 12v but the ones with the beefier milled aluminum housings do not. Check the specs on your particular unit
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#9 Alan Rencher

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Posted 03 July 2015 - 04:15 PM

I had a standard HDMI to HD-SDI converter that didn't need regulation. I bought that unit about four years ago.
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