security cameras using coax?
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@momurda said in security cameras using coax?:
Isnt 2.1 MP a 1920x1080 image?
What is wrong with that?From what I understand, 2.1MP is as high as you can go over coax, and in some cases it's not high enough to see the level of detail that you need.
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@psx_defector said in security cameras using coax?:
Coax cable means lots of things. What kind of cable? How high quality is the cable?
You could covert it over to ethernet, depending on the quality/length. But most coax should be sufficient for enough high res video, just depends on the camera.
I'll have to check the cable. In this case I know it has been installed 9 years. Is there a type of coax that can handle more than 2.1 MP?
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@mike-davis said in security cameras using coax?:
@psx_defector said in security cameras using coax?:
Coax cable means lots of things. What kind of cable? How high quality is the cable?
You could covert it over to ethernet, depending on the quality/length. But most coax should be sufficient for enough high res video, just depends on the camera.
I'll have to check the cable. In this case I know it has been installed 9 years. Is there a type of coax that can handle more than 2.1 MP?
It might be all that BNC connected analog video can do, but it is not the max for coax.
RG59 (most analog video systems in the 90's and 00's) has a small core and more loss on the higher frequencies.
RG6 (what all cable companies require today for TV) has a larger core and less loss on the higher frequencies.
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I wouldn't use coax anymore, even if the wiring is in place.
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@bbigford said in security cameras using coax?:
I wouldn't use coax anymore, even if the wiring is in place.
Replacing wire is expensive (in labor hours).
I would use something like this first.
https://www.amazon.com/Dualcomm-Ethernet-over-Adapters-DECA-100/dp/B009AGCLVG -
Here is one that does PoE and has standard BNC connector ends.
https://www.amazon.com/Ethernet-Extender-Security-Transmitting-Distance/dp/B00CKY6KEO -
@jaredbusch said in security cameras using coax?:
@bbigford said in security cameras using coax?:
I wouldn't use coax anymore, even if the wiring is in place.
Replacing wire is expensive (in labor hours).
I would use something like this first.
https://www.amazon.com/Dualcomm-Ethernet-over-Adapters-DECA-100/dp/B009AGCLVGDepends on how much wire needs to be run since 'expensive' is subjective. But I get what you're saying; it's more expensive than reusing the existing wire and just using an adapter.
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@bbigford said in security cameras using coax?:
@jaredbusch said in security cameras using coax?:
@bbigford said in security cameras using coax?:
I wouldn't use coax anymore, even if the wiring is in place.
Replacing wire is expensive (in labor hours).
I would use something like this first.
https://www.amazon.com/Dualcomm-Ethernet-over-Adapters-DECA-100/dp/B009AGCLVGDepends on how much wire needs to be run since 'expensive' is subjective. But I get what you're saying; it's more expensive than reusing the existing wire and just using an adapter.
If you can get everything reran in 1 hour per drop, then rerun it. YOu will be way better off. But that is generally not the case.
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Just a random note if you're picking out cameras, don't forget about the lens. I was going to go with UniFi cameras for one job, but I noticed at the time the lenses wouldn't fit the need. I'm not sure if they've added variety to their lineup.
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@JaredBusch I had no idea those adapters existed. I'll have to keep that in mind if I run in to a run where I can't pull the coax out while pulling a piece of Cat 6 behind it. Thanks for the link.
In this project most of the runs aren't too bad and they want to move the NVR anyways. If it's all IP based, that's no problem - the NVR only needs one network drop.
