DIY CCTV

Hi folks
bought a couple of "30 LED IR Night CCTV Video Audio Security Camera TP10" from HUYEDAN on EBay. Pleased with the cameras and the seller has great communication and attitude. Thought i'd quickly show you how to set it up.

I'm using some cat5 cable that i scabbed out of the university bins, they were literally throwing out hundreds of meters of the stuff (such a waste), the nature of twisted pair means that cat5 is ideal for any sort of signal hence why its used for networking. But in this situation i'm using it for surveillance.

You could use one pair for the power, but you have to look out for the voltage drop over long distances, so its best to have one pair for positive and one for negative, that way you half the impedance and thus halve the voltage drop.

after that, you have one pair for audio and one for video, you 'could' combine the grounds of the two however, this is twisted pair so don't! -there are some great illustrations of twisted pair on the internet (try searching for RS485), so if your interested please check it out.

Category:

Howto & Style

Tags:

• CCTV
• DIY
• Security
• Ethernet
• Cat5
• surveillance
• home

[bradder555]

thanks, computer PSU's make great power supplies for just about every application you can think of. I did have a switched mode power supply from ebay from china but there was RF noise that affected the signal.

I've just pulled the camera's specifications from ebay:

1/3" CMOS Color Camera

380 TV Line of horizontal definition.

30-LED Infrared (IrDA) LED light that automatically turn on in darkness

TV System PAL / NTSC (625 lines at 25 FPS) so you can get higher resolution, but not at this price

[ebruggema]

I've also brought this camera, but in darkness its getting very warm... and eventually stopping to give images.....

[djeq721]

@kolanshan

it's from spycameracctv - Awesome company and camera kits!

[kolanshan]

hi, i was thinking of getting these of ebay, how is the quality? is the frame rate at 30 frames per sec or is it less?

cool power supply and cat5 hack