darkulti

Rory, Nice GUI !

Just wonder is there any other options I can reduce the number of cables?

Damn......expensive like a hell......I give up and go to the first wiring option. Just wonder how complicate those baluns are bulit??? Thanks both of you. Now I'm going to hire a professional installer here to run cables for my buliding and focus on CCTV cameras. will need your supports again.

Thank Rory. According to VST_Man advice, I decide to run cable as follows: 5 Floors x 5 camera's (all more than 200ft.) run 5 UTP cables per floor (stuff is cheap) and use active baluns with power pass thru. and 1 UTP cable for chimney. However, what's difference between active and passive baluns? and what does VST_Man mean of power pass thru. This would be nicer if you could link me the recommended balun products. I'm getting more fun doing this job.

VST_Man, Thanks again for your prompt response. Your great info took me a day to understand technical term and tools such as active baluns. FYI: Inside the building, temp = 68 F to 100 F and humidity ranges b/w 50%Rh to 95%Rh

Please be patient to read and provide your comments. I do respect all your opinions. I have a five-floor building with a fireplace-like in the middle of the building. The building has 40'W x 80'L , and each floor including fireplace from the 5th floor roof are about 12' hight. The fireplace-like a space of 14' x 14'. One floor has 12 virtual (no walls / no partitions) completely dark rooms (normally 0.00 to 0.50 lux from my lux meter), each room is 20'W x 13.33'L. Corners of virtual rooms have pillars. I'd like to set up (below can be modified) 1) 5 cameras / each floor (tot. 25 cams) 2) 2 cams in the fireplace chimney (one surveys outside of the chimney and another looks down from top to the first floor inside the building. 3) 4 outdoor cams outside the building 4) 1 cam at the fence. Tot. 32 cameras. My questions are: 1. Since I don't know the exact place to put my cameras on yet, I think I will wire CCTV 5 cables for each floor and 2 cables at chimney. Each cable will have 2 outlets to connect a camera (one for spare) Is this a good idea? 2. If so, I do need (5 cables x 5 floors) + 4 cables = 29 cables. Can we simutaneously run more than one camera from a cable? 3. How long do I need (cable)? 4. What cable should I buy? I have read this forum, several ppl suggest Siamese cable RG 59/u. Is this cable reasonable to my case. Thank you for all your time and kindness.

VST_Man, G22, and Securitymaster Thanks for your posts. I will take your advice to go with Video Insight (VI), probably VJ240.

Could anyone compare between Video Insight VJ480 and GeoVision GV-1480 Combo Card? http://www.video-insight.com/buynow.htm http://www.geovision.com.tw/english/product/GV-1480.htm Thanks.