PTZ or Power over Coax

[Nuttyprof 0]

Anyone know of an inexpensive (<$100) solution to run ptz control OR power (24vac 1.25amp) over coax along with the video to a PTZ camera. The only solution I have found is supercircuits (see below) but it runs $380 and since we have two PTZ' that is way over budget. I have a siamese cable to the PTZ location - and it requires 24vac / 1.25a. The power over coax options I have found only handle .25a... so I thought I would look for the 485 over the coax solution. Additional cable runs are out of the question....

 

Thanks much for the input

 

Supercircuits - 485 solution

Detailed DescriptionRelated ProductsShipping InfoThe new VT transmission system transmits real-time video signal and power for long distances through a single coaxial cable. Transmission distance can be over 3800 feet without sending DC power to the camera. The VT-8 gives you the transmission of one camera with RS485. This allows you to control the pan, tilt, and zoom features of your cameras. Youll never get a signal interference or a hum in your video because they use the latest inter-carrier technology. These VTs support real time analog NTSC and PAL video signals in color. It has built-in transcient voltage and lightning protection. The RS485 has a data range of 0 Kbps to 64 Kbps. Its compact size and rugged construction makes it useful for a wide range of applications.

 

The power over coax option I found - only $65 but the amperage is too low (I thought of converting it back to AC at the cam)

 

The V-VL2122 is a product that can send Audio, NTSC/PAL Video and Power over a single RG59 coax cable. It works with both color and B/W cameras and monitors. It is ideal for monitoring areas where no power is available to operate a camera.

On the monitor side, the viewer part of the unit uses 18 to 24VDC (depending on length of coax). This voltage will go across the coax cable and the unit will output 12VDC on the sender side. Both the sender unit and the monitor unit has BNC connectors for the audio and video inputs and outputs. The units measure 2 inches wide and 2.5 inches long each with screw holes for any permanent mounting application. Unit comes complete with power supply, sender and receiver units and users manual.