mramos1
Active Member
For a couple years now, I have been replacing DVR cards in a PC from lightning hits. The cameras are outside grounded in the open area on the building and I have lightning rods install by a professional. I have a large antenna on the property next door that is probably bring all the lightning to me to make things worse.
It seems it is hitting the cameras (last thing that is recorded is a bright flash on one of the cameras) and the EM spike travels through the coax to the DVR card (PC and its power supply never been replaced AND 12 volt DC PS to the cameras never a problem). And lost one camera with 5 DVR cards fried.
I bought a $600 16 port protection device (BNC to BNC). I was told it would solve this and it is grounded as instructed. This does not work either.
I noticed the ports on the DVR card that are BNC to cat 5 via transformers and back to BNC at the DVR seem to survive, but looking at a resonable cost fiber solution. As I think eventually the right hit will spike the cat 5 cable if I go cat 5.
Anyone have experience in this area?
I think the DVR card is a little weak in design and thought if I go to fiber (2 feet of it just before the DVR with a BNC-BNC coupler) it would just be a bright flash light in the fiber and no ground involved. Hoping that will solve the problem.
I found Blackbox has a $2000+ US pair (RX/TX) version. I would need 16 of them so at $400 DVR card, that's out.
It seems it is hitting the cameras (last thing that is recorded is a bright flash on one of the cameras) and the EM spike travels through the coax to the DVR card (PC and its power supply never been replaced AND 12 volt DC PS to the cameras never a problem). And lost one camera with 5 DVR cards fried.
I bought a $600 16 port protection device (BNC to BNC). I was told it would solve this and it is grounded as instructed. This does not work either.
I noticed the ports on the DVR card that are BNC to cat 5 via transformers and back to BNC at the DVR seem to survive, but looking at a resonable cost fiber solution. As I think eventually the right hit will spike the cat 5 cable if I go cat 5.
Anyone have experience in this area?
I think the DVR card is a little weak in design and thought if I go to fiber (2 feet of it just before the DVR with a BNC-BNC coupler) it would just be a bright flash light in the fiber and no ground involved. Hoping that will solve the problem.
I found Blackbox has a $2000+ US pair (RX/TX) version. I would need 16 of them so at $400 DVR card, that's out.