Help with CCTV please

mrgadget21

Hi Guys

looking for your advice, please.

I have a Swann CCTV system (DVR 4-4400) connected to 3 Swann bullet cameras and 1 Swann PTZ Camera. The system was working fine, but during recent home renovations, I decided in conjunction with my electrician to upgrade all the cabling to cat 5E (as I'd be swapped out to a POE system at some point in the future). The chap told me that he would install converters and the system would work was as is. All of the cables were upgraded and the electrician's work was done, but the house renovations continued and he said he would be back but has disappeared.

I have purchased the following adaptors:

                                                                                                                                                                                                        BW 1 Channel CCTV Via Twisted Video Balun Transceiver: Amazon.co.uk: Electronics                                                                                                        Free delivery and returns on eligible orders. Buy BW 1 Channel CCTV Via Twisted Video Balun Transceiver at Amazon UK.                                                                                                                                                                                                        www.amazon.co.uk                                                                               
                                                                                                                                                                                                        FULARR® 20Pcs Professional BNC Connector Kit, 10 Pairs BNC Male Plug & Female Socket Screw Terminal Block Adapter, BNC Video Balun Connector for Coax Cat5 Cat6 to CCTV DVR TV Video Cameras: Amazon.co.uk: DIY & Tools                                                                                                        Shop FULARR® 20Pcs Professional BNC Connector Kit, 10 Pairs BNC Male Plug & Female Socket Screw Terminal Block Adapter, BNC Video Balun Connector for Coax Cat5 Cat6 to CCTV DVR TV Video Cameras. Free delivery on eligible orders of £20 or more.                                                                                                                                                                                                        www.amazon.co.uk                                                                               
Everything is wired in, initially one of the cameras worked but in black and white, and the other cameras do not work.  I am guessing this is a power-related issue?

There are 4 pairs of cable in each ethernet cable, I am using a pair each for  video, -video,  power and -power. On the PTZ camera I am using a pair for  power, -power and a single cable for  video,-video and the remaining 2 cables for  PTZ and -PTZ.

At present, when everything is connected, I am getting VIDEO FAIL for all 4 channels. Any advice is much appreciated, please.

mushii

How are you providing power to the cameras? What is your power source ?

mrgadget21

Hi Mushi

I’m using the same power adaptors as before. Individual plugs per camera

mushii

Have you made sure that the polarity is correct for each camera as you have rewired them using CAT 5e

mrgadget21

yes, all the  ve and -ve line up for both power and video

mushii

Looking at the reviews on the baluns, some people have had a high failure rate. Maybe a bad batch of baluns.

mrgadget21

thanks, mushii, appreciate your support.

are there any that you would recommend please?

mushii

I would look for a CCTV company and order some from them as they will most likely use better quality baluns.