May you have a Wonderful Weekend ,I sure am going to enjoy it 😉 ]]>

**Ryan Newkirk said **

Hello Ben,

You have a fairly complex, but relatively easy problem to solve. My suggestion would be to use BCC RG59 siamese cable in a single run to the camera. Use a 24vac power supply at the DVR location and add a 24vac to 12vdc power convertor at the camera end to down convert to the cameras power.

http://www.securitycameraking......-prd1.html

http://www.securitycameraking......-prd1.html

Thanks for providing an ELEGANT solution !

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**Jose Malave said **

A simple solution is to use a higher amperage Power supply or simply run a 24V AC power supply and down step the voltage to 12VDC at the camera.

Siamese is RG59 and 18/2 for 18/2 knowing the gauge of the power wire we can determine the voltage drop.

Industry standard is no less than 10% of voltage drop allowed. For this we need to get some data and determine the answer.

You have the camera at 340' and your source is about 10amp depending on the Distribution Box I can't see any orders under your email so this is my guess.

With this we have 340x2=680 this means we have 680' of paired wire. 680/100*1.27=8.63

Lets break this down 680' of paired wire divided by 100 (voltage drop per 100 feet is 1.27 Volts according to this chart) times 1.27 at 1amp using the 18AWG conductors and determined that at 340' we lost 8.63vdc this is 71% arrived at the location. Drop is 29%

This is more than 10%.

]]>thanks for the explanation !! In the beginning, i had wondered if getting more power to the cam was the solution but worried about burning up the cam. However, the solution to that problem was simply downstepping at the cam. You're a genius!

You have a fairly complex, but relatively easy problem to solve. My suggestion would be to use BCC RG59 siamese cable in a single run to the camera. Use a 24vac power supply at the DVR location and add a 24vac to 12vdc power convertor at the camera end to down convert to the cameras power.

http://www.securitycameraking......-prd1.html

http://www.securitycameraking......-prd1.html

]]>Siamese is RG59 and 18/2 for 18/2 knowing the gauge of the power wire we can determine the voltage drop.

Industry standard is no less than 10% of voltage drop allowed. For this we need to get some data and determine the answer.

You have the camera at 340' and your source is about 10amp depending on the Distribution Box I can't see any orders under your email so this is my guess.

With this we have 340x2=680 this means we have 680' of paired wire. 680/100*1.27=8.63

Lets break this down 680' of paired wire divided by 100 (voltage drop per 100 feet is 1.27 Volts according to this chart) times 1.27 at 1amp using the 18AWG conductors and determined that at 340' we lost 8.63vdc this is 71% arrived at the location. Drop is 29%

This is more than 10%.

]]>

As you guys can see, i am pretty confused with figuring out how to cost effectively power a little cam approx 350ft from my apartment unit to where my car is parked and vulnerable to vandalism. It works great with a couple of the cables connected together to make like 200ft line. But with the third line, the cam has vertical wavy lines that run from the left to the right. And sometimes the pic goes black for several hours.

thanks for any suggestions and or clarifications !! ben

]]>thanks, mikehub

]]>Im not sure what you mean by powering the IR on your camera, are you referring to an IR iluminator?

If not the IP cameras [Domes/Bullets] that we have in our lineup are PoE and have IR LED's, these cameras can be powered by PoE or a 12VDC Source. One power source is enough to run the camera as well as its IR LED's.

I decided to try D-Link power line adapter DHP-541 which runs up to 500 mbps - a 4 port cat5 unit.

They are required to be on the same circuit breaker.

Maximum operating temperature is 104 degrees - not great for hot temperature - short life is expected.

And I do not have a fan in my utility box. I am looking for a small plastic box with a fan.

So I purchased 2 sets for a total of $99.00 (one as a backup)

After several months in operation, I am happy with the operation - no problems yet.

]]>Thanks

]]>http://www.securitycameraking......-prd1.html

Have a great day.

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