prosecure

I completed the above task today !!!! Just for information incase anybody else struggles with this sometime in the future.. I used the rj11 4pin wires that connect to the old bosch cameras. replaced cameras and dvd. The rj11 wire has 4 wires (colours not the same for each cam) I used two for video, two for power +/- I then crimped rj45 ends to the rj11 wire using the first two and last two pins of the rj45 connector Used baluns on the dvr side and camera side (not sure if i needed to on both sides but did anyway) Replaced camera and connect to dvr and 'wallah' it worked .....

Hi Guys I know its an old thread but I thought i'd give it a go. Im also facing this issue. Working on a friends restaurant and it has 2 floors and an existing bosch system as mentioned above. Im changing the cameras and dvr to bnc Qvis with a new power supply for all cameras. I don't want to be replacing all the wires. Could i just use the already installed rj11 wire and chop the ends, instead use rj45 crimp on ends with bnc to rj45 baluns to balance the signal. Either that or spend hours changing the wires, I always use cat5 now but it would save me a hell of a lot of time... If so I could connect one pair for video and one pair for power as it is a cat5 UTP pair?? Just an idea Any help would be appreciated. Thanks Droid

Hi I am wiring a cctv system for a customer. They have an old rj11 type Bosch system at the moment connecting to a monitor and then the monitor connected to a recorder with bnc out I need to replace the system completely but don't fancy re-wirining it completely as it is a 3 storey old building and there is cameras on the outside too. I was wanting to know could i cut the rj11 connectors on both sides and replace them with rj45 connectors running into baluns which i can connect to a bnc type dvr and bnc camera. I would use two pairs one for power and the other for video as long as the wires are the same on both ends of the baluns would this work? or would i just hard wire it without baluns? Any help is appreciated.. Thanks Urphy