How the AC power should be.

[Björn Benckert]

We cut off our AC power cable and inserted female male 4 pin XLR connectors. So now we can run the camera with an XLR extension cable when we are in a studio or such.
The cool thing is that there are seamese BNC power cables out there so we will get a 20 meter BNC cable with built in power to run from the camera to the video village. Then the camera only has one cable hanging where it gets both power and delivers video out.

Seamese BNC: http://www.shopping.com/Addlogix-50...able-BNC-RCA-Connector-Adapter-CBV50-1JD/info

just to cut of and put on 4 pin XLR's

then have the AC as this picture.

It would be great if red sold BNC with built in power and changed the AC accordingly. I think many would buy it.

 

[Stephen Williams]

We cut off our AC power cable and inserted female male 4 pin XLR connectors. So now we can run the camera with an XLR extension cable when we are in a studio or such.
The cool thing is that there are seamese BNC power cables out there so we will get a 20 meter BNC cable with built in power to run from the camera to the video village. Then the camera only has one cable hanging where it gets both power and delivers video out.

Seamese BNC: http://www.shopping.com/Addlogix-50...able-BNC-RCA-Connector-Adapter-CBV50-1JD/info

just to cut of and put on 4 pin XLR's

then have the AC as this picture.

It would be great if red sold BNC with built in power and changed the AC accordingly. I think many would buy it.

Well with a 10 amp (or more) power requirement @ 12 volts I doubt that will happen, especially with a very long cable.

 

[Oliver Skibbe]

The cool thing is that there are seamese BNC power cables out there so we will get a 20 meter BNC cable with built in power to run from the camera to the video village. Then the camera only has one cable hanging where it gets both power and delivers video out.

Seamese BNC: http://www.shopping.com/Addlogix-50...able-BNC-RCA-Connector-Adapter-CBV50-1JD/info

just to cut of and put on 4 pin XLR's

Do you really think this CCTV cable is adequate for currents of 4 Amperes and above? :confused1:

 

[Patrick Grossien]

Hi Björn is there any difference between lemo and xlr except dimension / type of connector? Why are there so many lemo versions, if xlr is much more inexpensive ?

 

[Robert Knoll]

Respectfully. May look nice by I would be hesitant as the cable gauge is way too small and the lemo pins do not have the surface area.

 

[Stuart English]

Hi Björn is there any difference between lemo and xlr except dimension / type of connector? Why are there so many lemo versions, if xlr is much more inexpensive ?

LEMO is much smaller than XLR, and typically supports more pins. So for example you can transfer data as well as the actual power.

 

[Patrick Grossien]

Thanks Stuart!

 

[Björn Benckert]

Well with a 10 amp (or more) power requirement @ 12 volts I doubt that will happen, especially with a very long cable.

We got 36V source and then a super small Stepdown converter by the camera then it works nicely. long cable is then no issue the step-down delivers 14.5V by the camera at very long and even thin cables.

 

[Björn Benckert]

Hi Björn is there any difference between lemo and xlr except dimension / type of connector? Why are there so many lemo versions, if xlr is much more inexpensive ?

Also if you are more of a camera man then soldering man I recommend the XLR connectors for all Do it your self applications.. The small Lemo cabels are so small that even the pro's have problems to make the soldering lot of times. So when being on set and a lemo start to glitch...then it gets a bit stressed, XLR's on the other hand can always be fixed quite easily.

 

[Terry VerHaar]

Does this introduce any warranty issues?

 

[Björn Benckert]

Does this introduce any warranty issues?

I guess you void the warranty for the charger when you cut the cable. But if it's done correctly it's not different than using any other custom or 3rd party power supply, I guess.

But basically if you put on a too long extension cable you camera will signal "low voltage" and shut down thats all.

For the milo we use a 36v power supply and feed that all trough the rig and right before the camera we got a "step down converter" that has input 46v-15v and output a perfect 14.5V.

Then it does not really matter how long the cable is the camera will always get a good feed.

With the above solution you can extend quite a bit the AC gives (i think) 15.5V and the camera needs 11.5 to run so even if you loose some voltage in a long and especially thin cable
you can still reach quite a distance...( have not tested our maximum length just yet, only have like a 5 meter XLR extention cable at the moment.)